| [osmolality of frequently consumed beverages]. | the objective of this work was to determine the osmolality of beverages frequently consumed by children and adolescents due to the scarce information available in our country. the samples were grouped as follows: milks; refreshments; beverages based on fruits, vegetables, cereals, and tubers; sport drinks; energizing drinks; oral rehydrating solutions; reconstituted drinks and infusions. a vapor pressure digital osmometer was used, five samples of each beverage from different lots were analyzed. ... | 2004 | 15602899 |
| purification, characterization, and antifungal activity of chitinases from pineapple (ananas comosus) leaf. | three chitinases, designated pineapple leaf chitinase (pl chi)-a, -b, and -c were purified from the leaves of pineapple (ananas comosus) using chitin affinity column chromatography followed by several column chromatographies. pl chi-a is a class iii chitinase having a molecular mass of 25 kda and an isoelectric point of 4.4. pl chi-b and -c are class i chitinases having molecular masses of 33 kda and 39 kda and isoelectric points of 7.9 and 4.6 respectively. pl chi-c is a glycoprotein and the ot ... | 2005 | 15665484 |
| enzymatic synthesis of stable, odorless, and powdered furanone glucosides by sucrose phosphorylase. | sucrose phosphorylase from leuconostoc mesenteroides catalyzed transglucosylation from sucrose to 4-hydroxy-3(2h)-furanone derivatives. when 4-hydroxy-2,5-dimethyl-3(2h)-furanone (hdmf) and 2-ethyl-4-hydroxy-5-methyl-3(2h)-furanone or 5-ethyl-4-hydroxy-2-methyl-3(2h)-furanone (ehmf) were used as acceptors, their transfer ratios were more than 45%. in the case of glucosylation of hdmf, the major transfer product was identified as 2,5-dimethyl-3(2h)-furanone 4-o-alpha-d-glucopyranoside (dmf-g). in ... | 2000 | 10705458 |
| antimutagenic effect of fruit and vegetable ethanolic extracts against n-nitrosamines evaluated by the ames test. | the inhibitory effect of nine fruit and vegetable ethanolic extracts against the mutagenicity of n-nitrosodimethylamine (ndma), n-nitrosopyrrolidine (npyr), n-nitrosodibutylamine (ndba), and n-nitrosopiperidine (npip) was evaluated by means of the ames test. licorice ethanolic extract was the only one that showed an inhibitory effect (ranging from moderate to strong) against mutagenicity of all n-nitrosamines tested. this ethanolic extract showed the greatest inhibition effect against npip (72%) ... | 1999 | 10552641 |
| investigation of an outbreak of gastroenteritis at a hospital for patients with learning difficulties. | eighty of the 460 patients and staff (attack rate 22%) in a long-stay hospital for patients with learning difficulties became ill in a general outbreak of gastrointestinal infection that followed a buffet style party on one ward. illness in the cohort of 47 resident patients, relations, and staff who attended that party was associated with having eaten ham, coleslaw, bread rolls, and cheese and pineapple on sticks. food from the hospital kitchen was supplemented by food brought in and prepared o ... | 1999 | 10462893 |
| assessment of the anthelmintic effect of natural plant cysteine proteinases against the gastrointestinal nematode, heligmosomoides polygyrus, in vitro. | we examined the mechanism of action and compared the anthelmintic efficacy of cysteine proteinases from papaya, pineapple, fig, kiwi fruit and egyptian milkweed in vitro using the rodent gastrointestinal nematode heligmosomoides polygyrus. within a 2 h incubation period, all the cysteine proteinases, with the exception of the kiwi fruit extract, caused marked damage to the cuticle of h. polygyrus adult male and female worms, reflected in the loss of surface cuticular layers. efficacy was compara ... | 2005 | 15727070 |
| modulation of murine tumor growth and colonization by bromelaine, an extract of the pineapple plant (ananas comosum l.). | the antitumor and antimetastatic activities of the plant cysteine endoproteinase bromelaine were evaluated in a murine model. syngeneic sarcoma l-1 cells were incubated with bromelaine (after preceeding time and dosage kinetics) and subcutaneously; (s.c.) or intravenously; (i.v.) inoculated into balb/c-mice (n = 5 per experimental group) to induce local tumor growth or lung colonization. compared to non-protease incubated l-1 cells, local tumor growth and experimental lung metastasis decreased s ... | 2005 | 15796214 |
| phytate and fiber content in thai fruits commonly consumed by diabetic patients. | the amount of phytate and total dietary fiber of 6 popular tropical fruits eaten by diabetic patient residing in bangkok were studied. they were dragon fruit, durian, guava, longan, mango, and pineapple. fruit containing the highest content of total dietary fiber was guava which had about 2.7%. longan contained the lowest fiber content equal to 0.19%. the highest content of phytate was found in pineapple about 0.09% and the lowest content was in longan about 0.037%. it was noticed that longan co ... | 2004 | 15822538 |
| the effects of ananas comosus l. leaves on diabetic-dyslipidemic rats induced by alloxan and a high-fat/high-cholesterol diet. | the aim of this study is to demonstrate the effects of ananas comosus l. leaves on diabetic-dyslipidemic rats. hypoglycemic and hypolipidemic activities of the ethanolic extract of ananas comosus l. leaves (eeacl) were evaluated in normal and alloxan-induced diabetic rats by oral glucose tolerance test and an olive oil load test. anti-diabetic, anti-hyperlipidemic and anti-oxidative activities of eeacl were also investigated in diabetic-dyslipidemic rats induced by alloxan and a high-fat/high-ch ... | 2005 | 15844837 |
| treatment with oral bromelain decreases colonic inflammation in the il-10-deficient murine model of inflammatory bowel disease. | bromelain is a mixture of proteinases derived from pineapple stem that is marketed in health food stores as a "digestive aid". orally administered bromelain was anecdotally reported to induce clinical and endoscopic remission of ulcerative colitis in two patients whose disease was refractory to multi-agent conventional medical therapy. however, the potential efficacy of bromelain in colitis has not yet been tested rigorously in either animals or humans. in this study, the clinical and histologic ... | 2005 | 15936249 |
| growth and survival of escherichia coli o157:h7 in fresh tropical fruit juices at ambient and cold temperatures. | the survival of escherichia coli o157:h7 in acidic foods and its enhanced survival in refrigerated acid foods are well documented. this prompted the present study to evaluate the growth potential of e. coli o157:h7 in fresh tropical fruit juices. the ph of the various juices ranged between 3.57 (pineapple) and 6.2 (avocado). samples were separately inoculated with a mixture of four e. coli o157:h7 strains at initial levels of approximately 10(3) cfu/ml, and stored at refrigeration (4 degrees c) ... | 2005 | 16019323 |
| bromelain improves decrease in defecation in postoperative rats: modulation of colonic gene expression of inducible nitric oxide synthase. | ileus continues to be a common consequence of abdominal surgery, causing significant patient discomfort and often leading to more serious problems. the therapy available is limited, hence, ileus remains an important clinical problem. activation of inducible nitric oxide synthase (inos) directly modulates intestinal dysmotility after bowel manipulation and plays an essential role in initiating intestinal inflammation. nuclear factor (nf)-kappab is known to be a critical component of inos gene tra ... | 2006 | 16137711 |
| bromelain proteases reduce human platelet aggregation in vitro, adhesion to bovine endothelial cells and thrombus formation in rat vessels in vivo. | the thiol protease, bromelain, an extract from pineapple stem, was suggested to have antithrombotic and anticoagulant activities in vivo. we studied the effects of bromelain on cell size distribution of isolated human platelets in vitro by coulter counter measurements. preincubation of platelets with bromelain (10 micrograms/ml) completely prevented the thrombin (0.2 u/ml) induced platelet aggregation. papain was less active in preventing platelet aggregation. in vitro, bromelain (0.1 microgram/ ... | 1999 | 10218125 |
| shelf life study of some nigerian fruit juices inoculated with ascospores of neosartorya spp. | mango, orange and pineapple juices containing various concentrations of sucrose were dispensed in 100 ml volumes into 100 ml conical flasks with stoppers. each juice in a flask was inoculated with ascospores of one local isolate of either neosartorya fischeri, n. fischeri var. spinosa or n. quadricincta to a final concentration of 120-140 ascospores/ml of juice, and then pasteurized at 80 degrees c for 30 min. a set of 36 inoculated flasks with 12 controls was stored at 4-5 degrees c and two set ... | 1997 | 9477427 |
| stability of enterocin as-48 in fruit and vegetable juices. | enterocin as-48 is a candidate bacteriocin for food biopreservation. before addressing application of as-48 to vegetable-based foods, the interaction between as-48 and vegetable food components and the stability of as-48 were studied. enterocin as-48 had variable interactions with fruit and vegetable juices, with complete, partial, or negligible loss of activity. for some juices, loss of activity was ameliorated by increasing the bacteriocin concentration, diluting the juice, or applying a heat ... | 2005 | 16245711 |
| effect of acute and chronic grapefruit, orange, and pineapple juice intake on blood lipid profile in normolipidemic rat. | high fruit intake is known to be associated with reduced risk of coronary heart disease. our objective was to determine the effects of acute and chronic juice [grapefruit, orange, and pineapple] intake on plasma lipid profile and lipoprotein metabolism in normolipidemic rats. | 2005 | 16319784 |
| bromelain exerts anti-inflammatory effects in an ovalbumin-induced murine model of allergic airway disease. | bromelain, a clinically used pineapple extract and natural product, has reported anti-inflammatory and immunomodulatory activities. the purpose of this study was to determine the effect of bromelain treatment in an ovalbumin (ova)-induced murine model of allergic airway disease (aad). | 2005 | 16337164 |
| sulfasalazine transport in in-vitro, ex-vivo and in-vivo absorption models: contribution of efflux carriers and their modulation by co-administration of synthetic nature-identical fruit extracts. | sulfasalazine is characterised by low oral bioavailability. in this study, its intestinal transport characteristics were studied in an in-vitro, ex-vivo and in-situ system. the absorptive transport of sulfasalazine across caco-2 monolayers appeared to be lower than the secretory transport (p(app-abs) = 0.21 +/- 0.02 x 10(-6) cm s(-1) and p(app-secr) = 2.97 +/- 0.30 x 10(-6) cm s(-1), respectively). this polarity in transport of sulfasalazine was not mediated by p-glycoprotein (p-gp), as inclusio ... | 2005 | 16354400 |
| [hypersensitivity to poppy seeds]. | hypersensitivity to poppy seeds is rare and it may develop due to immune (allergy) and non-immune reactions of fulminant course. two cases of hypersensitivity to poppy seeds are presented: in a 21-year-old woman and 32-year-old man in whom life-threatening symptoms and signs of anaphylaxis (ssa) developed after consumption of poppy seeds in various situations, e.g in the street after consumption of a roll with poppy seeds or a cake prepared on a moulding board on which poppy seeds were previousl ... | 2005 | 16425801 |
| in vitro and in vivo anthelmintic efficacy of plant cysteine proteinases against the rodent gastrointestinal nematode, trichuris muris. | extracts of plants, such as papaya, pineapple and fig, are known to be effective at killing intestinal nematodes that inhabit anterior sites in the small intestine, such as heligmosomoides polygyrus. in this paper, we demonstrate that similar in vitro efficacy also occurs against a rodent nematode of the large intestine, trichuris muris, and confirm that the cysteine proteinases present in the plant extracts are the active principles. the mechanism of action of these enzymes involved an attack o ... | 2006 | 16448585 |
| blackberry (rubus spp.): a ph-dependent oral contrast medium for gastrointestinal tract images by magnetic resonance imaging. | in this study, seven fruits have been tested on their magnetic properties, paramagnetic metal content and contrast enhancement in magnetic resonance imaging (mri) of phantom and in vivo. magnetic susceptibility was determined for the fruit pulps, as well as the contents of paramagnetic metals; iron, manganese and copper. the total content of these metals was 4.3, 8.6, 11.1, 10.9, 12.3, 8.3 and 29.3 mg/kg of fruit for plum, blueberry, apple (red), pineapple, beet, grape, blackberry, respectively, ... | 2006 | 16455409 |
| sharing malaysian experience with the development of biotechnology-derived food crops. | biotechnology-derived food crops are currently being developed in malaysia mainly for disease resistance and improved post harvest quality. the modern biotechnology approach is adopted because of its potential to overcome constraints faced by conventional breeding techniques. research on the development of biotechnology-derived papaya, pineapple, chili, passion fruit, and citrus is currently under way. biotechnology-derived papaya developed for resistance to papaya ringspot virus (prsv) and impr ... | 2005 | 16465992 |
| intestinal absorption of undegraded proteins in men: presence of bromelain in plasma after oral intake. | the human adult intestinal epithelium has traditionally been described as nonpermeable to proteins. however, indirect evidence suggests that reduced absorption of undegraded proteins might take place under physiological conditions. using bromelain (an enzyme obtained from pineapple stems) as a model protein, we studied the extent of this mucosal permeation in 19 healthy men. the protein was detected in plasma by immunoassay and by its proteolytic activity after oral administration. the estimated ... | 1997 | 9252520 |
| production of natural fruity aroma by geotrichum candidum. | based on its aromatic potential, geotrichum candidum isolated from olive vegetation water was tested for the production of volatile compounds. when g. candidum was cultivated on media with glucose as the carbon source, flavor volatile compounds were produced and accumulated in the broth. fruity flavoring compounds (pineapple-like) such as esters and alcohols were analyzed by gas chromatography coupled to mass spectrometry, including ethyl esters of acetic acid and butyric acid, methyl-3-butan-1- ... | 2006 | 16632883 |
| the effect of preservatives on the sterility of microorganisms introduced into different fruit juices. | the aim of this study was to investigate the degree of sterility of some fruit juices post manufacture and to determine how effective the preservatives in them aid the killing of some microorganisms introduced into them. | 2006 | 16641872 |
| hydrolytic enzymes in the central vacuole of plant cells. | the hydrolase content of vacuoles isolated from protoplasts of suspension-cultured tobacco cells, of tulip petals, and of pineapple leaves, and the sedimentation behavior of tobacco tonoplasts were studied. three precautions were found to be important for the analysis of vacuolar hydrolases and of the tonoplast. (a) purification of protoplasts in a ficoll gradient was necessary to remove cell debris which contained contaminating hydrolases adsorbed from the fungal cell-wall-degrading enzyme prep ... | 1979 | 16660869 |
| the rapid isolation of vacuoles from leaves of crassulacean acid metabolism plants. | a technique is presented for the isolation of vacuoles from sedum telephium l. leaves. leaf material is digested enzymically to produce protoplasts rapidly which are partially lysed by gentle osmotic shock and the inclusion of 5 millimolar ethyleneglycol-bis (beta-aminoethyl ether)n,n'-tetraacetic acid in the wash medium. vacuoles are isolated from the partially lysed protoplasts by brief centrifugation on a three-step ficoll-400 gradient consisting of 5, 10, and 15% (w/v) ficoll-400. a majority ... | 1980 | 16661440 |
| dark/light modulation of ribulose bisphosphate carboxylase activity in plants from different photosynthetic categories. | ribulose bisphosphate carboxylase/oxygenase (rubpcase) from several plants had substantially greater activity in extracts from lightexposed leaves than dark leaves, even when the extracts were incubated in vitro with saturating hco(3) (-) and mg(2+) concentrations. this occurred in glycine max, lycopersicon esculentum, nicotiana tabacum, panicum bisulcatum, and p. hylaeicum (c(3)); p. maximum (c(4) phosphoenolpyruvate carboxykinase); p. milioides (c(3)/c(4)); and bromelia pinguin and ananas como ... | 1984 | 16663937 |
| in vitro screening of six anthelmintic plant products against larval haemonchus contortus with a modified methyl-thiazolyl-tetrazolium reduction assay. | because of the increasing anthelmintic resistance and the impact of conventional anthelmintics on the environment, it is important to look for alternative strategies against gastrointestinal nematodes. phytotherapy could be one of the major options to control these pathologies. extracts or ingredients of six different plant species were tested against exsheathed infective larvae of haemonchus contortus using a modified methyl-thiazolyl-tetrazolium (mtt) reduction assay. pyrantel tartrate was use ... | 2006 | 16725288 |
| effect of ethanolic extracts of ananas comosus l. leaves on insulin sensitivity in rats and hepg2. | ethanolic extracts of ananas comosus l. leaves (ac) enriched with phenols have hypoglycemic activity in diabetic rats. here, we investigated the effect of ac on insulin sensitivity in rats and hepg2. in high-fat diet-fed and low-dose streptozotozin-treated diabetic wistar rats subjected to challenge with exogenous human insulin, ac treatment at an oral dose of 0.40 g/kg could significantly improve sensitivity to exogenous insulin. after a sub-acute treatment, ac also could inhibit the developmen ... | 2006 | 16753349 |
| application of the broad-spectrum bacteriocin enterocin as-48 to inhibit bacillus coagulans in canned fruit and vegetable foods. | the enterococcal bacteriocin (enterocin) as-48 is a broad-spectrum cyclic peptide. enterocin as-48 was tested against bacillus coagulans in three vegetable canned foods: tomato paste (ph 4.64), syrup from canned peaches (ph 3.97), and juice from canned pineapple (ph 3.65). when vegetative cells of b. coagulans cect (spanish type culture collection) 12 were inoculated in tomato paste supplemented with 6 microg/ml as-48 and stored at different temperatures, viable cell counts were reduced by appro ... | 2006 | 16831501 |
| efficient production of transgenic citrus plants using isopentenyl transferase positive selection and removal of the marker gene by site-specific recombination. | the presence of marker genes conferring antibiotic resistance in transgenic plants represents a serious obstacle for their public acceptance and future commercialization. in citrus, selection using the selectable marker gene nptii, that confers resistance to the antibiotic kanamycin, is in general very effective. an attractive alternative is offered by the mat system (multi-auto-transformation), which combines the ipt gene for positive selection with the recombinase system r/rs for removal of ma ... | 2007 | 16927091 |
| outbreak of bronchiolitis obliterans associated with consumption of sauropus androgynus in taiwan. | in august, 1995, there was an outbreak in taiwan of rapidly progressive respiratory distress associated with consumption of uncooked sauropus androgynus, a vegetable with a claimed yet unconfirmed effect on weight control. we report on 23 patients with strikingly similar clinical presentations. | 1996 | 8676721 |
| kiwi fruit allergy: a new birch pollen-associated food allergy. | to determine the cross-reacting antigens of kiwi fruit and other foods and pollen, we investigated 22 patients allergic to kiwi fruit: 10 with severe systemic reactions and 12 with localized symptoms confined to oral and pharyngeal mucosa (oral allergy syndrome). seven patients with birch pollen allergy who tolerated kiwi fruit were included as a control group. | 1994 | 8027500 |
| pineapple [ananas comosus (l.) merr]. | a procedure for pineapple [ananas comosus (l.) merr.] genetic transformation is described, which involves temporary immersion bioreactors (tib) for selection of transgenic plants. success in the production of transgenic pineapple plants combines tissue culture factors. firstly, the use of regenerable pineapple callus as starting material for transformation whose cells shown to be competent for agrobacterium infection. secondly, the used of filtered callus, resulting in homogeneously sized cluste ... | 2006 | 17033065 |
| comparison of culture media, simplate, and petrifilm for enumeration of yeasts and molds in food. | the efficacy of three culture media, dichloran rose bengal chloramphenicol (drbc), dichloran 18% glycerol agar (dg18), and potato dextrose agar (pda) supplemented with two antibiotics, were compared with the simplate and petrifilm techniques for mold and yeast enumeration. the following foods were analyzed: corn meal, wheat flour, cassava flour, bread crumbs, whole meal, sliced bread, ground peanuts, mozzarella cheese, grated parmesan cheese, cheese rolls, orange juice, pineapple pulp, pineapple ... | 2001 | 11601710 |
| transcriptional regulation of a pineapple polyphenol oxidase gene and its relationship to blackheart. | two genes encoding polyphenol oxidase (ppo) were isolated from pineapple (ananas comosus[l.] merr. cv. smooth cayenne). sequence analyses showed that both contained a single intron and encoded typical chloroplast-localized ppo proteins, the sequences of which corresponded to two pineapple ppo cdnas, pinppo1 and pinppo2, recently described by stewart et al. (2001). southern blot analyses suggested that pineapple contained only two ppo genes. analysis of expression of pinppo1 promoter gus fusion c ... | 2003 | 17134404 |
| oral immunogenicity of the plant proteinase bromelain. | bromelain is a natural mixture of proteolytic enzymes derived from pineapple stem that has been shown to have anti-inflammatory activity when administered orally. although most proteins given orally without adjuvant (e.g., food) result in tolerance, we previously reported that long-term oral exposure to bromelain stimulated the development of high serum anti-bromelain antibody titers. the purpose of these studies was to further investigate the mechanisms responsible for the immunogenicity of ora ... | 2006 | 17161360 |
| the growth of propionibacterium cyclohexanicum in fruit juices and its survival following elevated temperature treatments. | this study investigated the growth of propionibacterium cyclohexanicum in orange juice over a temperature range from 4 to 40 degrees c and its ability to multiply in tomato, grapefruit, apple, pineapple and cranberry juices at 30 and 35 degrees c. survival after 10 min exposure to 50, 60, 70, 80, 85, 90 and 95 degrees c in culture medium and in orange juice was also assessed. in orange juice the organism was able to multiply by 2 logs at temperatures from 4 to 35 degrees c and survived for up to ... | 2007 | 17189756 |
| tin in foods and the diet. | the diet is the main source of tin intake by man. nearly all the tin in the uk diet is associated with canned food. canned tomatoes, tomato products, pineapple, pears and similar fruits contain the highest concentrations of tin. average dietary tin intakes in the uk are about 3 mg/day and have been falling since 1976. | 1984 | 6537352 |
| enzymatic frostbite eschar debridement by bromelain. | bromelain is a plant proteinase derived from the stem of the pineapple plant that has been used successfully to debride the eschar from third-degree burn injuries. its applicability to frostbite eschar removal was extrapolated and investigated. third-degree frostbite lesions were produced on swine using supercooled air as the freezing media, and the resulting eschars were treated with a bromelain preparation. in the initial trial, no debridement other than that of the superficial layers of the e ... | 1987 | 3307553 |
| allergic reactions, including asthma, to the pineapple protease bromelain following occupational exposure. | a 58-year-old pharmaceutical worker regularly developed asthma and rhinitis when handling bromelain, a purified protease of pineapple (ananas comosus), at her work-place, where she had been employed for about 10 years. rast and prick test showed strong positive reactions to bromelain. both inhalation test with 0.03 mg bromelain and peroral challenge by ingestion of 190 g pineapple resulted in asthmatic reactions; the latter challenge was accompanied by gastrointestinal symptoms. five of six work ... | 1979 | 498486 |
| evaluation of the antioxidant properties of mediterranean and tropical fruits compared with common food additives. | several mediterranean and tropical fruits have been analyzed in order to assess their antioxidant activity compared with that of common food additives (butylated hydroxyanisole [bha], butylated hydroxytoluene [bht] and propyl gallate). among mediterranean fruits, red grape and plum were more effective (p < 0.05) scavengers of peroxyl radicals than bha, bht, and propyl gallate. of the tropical fruits, banana was the most effective scavenger of peroxyl radicals. mediterranean and tropical fruits s ... | 2001 | 11770635 |
| biological detoxification of cr(vi) using wood-husk immobilized acinetobacter haemolyticus. | acinetobacter haemolyticus, a gram-negative aerobic locally isolated bacterium, immobilized on wood-husk showed the ability to detoxify cr(vi) to cr(iii). wood-husk, a natural cellulose-based support material, packed in an upward-flow column was used as support material for bacterial attachment. around 97% of the cr(vi) in wastewater containing 15 mg l(-1) of cr(vi) was reduced at a flow rate of 8.0 ml min(-1). the wastewater containing cr(vi) was added with liquid pineapple wastewater as nutrie ... | 2007 | 17368716 |
| hypolipidemic mechanisms of ananas comosus l. leaves in mice: different from fibrates but similar to statins. | in this study, we investigated hypolipidemic mechanisms of the ethanolic extract of ananas comosus l. leaves (ac) in mice and then determined its activities in related enzymes. the results showed that ac (0.40 g/kg) significantly inhibited the increase in serum triglycerides by 40% in fructose-fed mice. in mice induced by alloxan and high-fat diets, serum total cholesterol remained at a high level (180 - 220 mg/dl) within 7 days of removing high-fat diets but reached normal level (120 - 140 mg/d ... | 2007 | 17380035 |
| production of butyl acetate ester by lipase from novel strain of rhizopus oryzae. | a new lipase preparation from rhizopus oryzae was used to catalyze the esterification reaction between acetic acid and butanol to produce butyl acetate ester (pineapple flavor). this flavor compound can be used in food, cosmetic and pharmaceutical industries. only 3% of butyl acetate was obtained when free lipase was used in the synthesis containing only the substrates. in contrast, the conversion yield reached 25% when immobilized lipase was used under the same conditions. the synthesis of buty ... | 2007 | 17502279 |
| detection of some safe plant-derived foods for ltp-allergic patients. | lipid transfer protein (ltp) is a widely cross-reacting plant pan-allergen. adverse reactions to rosaceae, tree nuts, peanut, beer, maize, mustard, asparagus, grapes, mulberry, cabbage, dates, orange, fig, kiwi, lupine, fennel, celery, tomato, eggplant, lettuce, chestnut and pineapple have been recorded. | 2007 | 17505138 |
| removal of heavy metals from contaminated sewage sludge using aspergillus niger fermented raw liquid from pineapple wastes. | the environmental benefits derived from using citric acid in the removal of heavy metals from contaminated sewage sludge have made it promising as an extracting agent in the chemical extraction process. at present, citric acid is produced commercially by fermentation of sucrose using mutant strains of aspergillus niger (a. niger), and chemical synthesis. in recent years, various carbohydrates and wastes (such as pineapple wastes) have been considered experimentally, to produce citric acid by a. ... | 2008 | 17512728 |
| microbial control of arthropod pests of tropical tree fruits. | a multitude of insects and mites attack fruit crops throughout the tropics. the traditional method for controlling most of these pests is the application of chemical pesticides. growing concern on the negative environmental effects has encouraged the development of alternatives. inundatively and inoculatively applied microbial control agents (virus, bacteria, fungi, and entomopathogenic nematodes) have been developed as alternative control methods of a wide variety of arthropods including tropic ... | 2007 | 17607448 |
| functional characterization of enone oxidoreductases from strawberry and tomato fruit. | fragaria x ananassa enone oxidoreductase (faeo), earlier putatively assigned as quinone oxidoreductase, is a ripening-induced, negatively auxin-regulated enzyme that catalyzes the formation of 4-hydroxy-2,5-dimethyl-3(2h)-furanone (hdmf), the key flavor compound in strawberry fruit by the reduction of the alpha,beta-unsaturated bond of the highly reactive precursor 4-hydroxy-5-methyl-2-methylene-3(2h)-furanone (hmmf). here we show that recombinant faeo does not reduce the double bond of straight ... | 2007 | 17636940 |
| nematicidal effects of cysteine proteinases against sedentary plant parasitic nematodes. | cysteine proteinases from the fruit and latex of plants, such as papaya, pineapple and fig, have previously been shown to have substantial anthelmintic efficacy, in vitro and in vivo, against a range of animal parasitic nematodes. in this paper, we describe the in vitro effects of these plant extracts against 2 sedentary plant parasitic nematodes of the genera meloidogyne and globodera. all the plant extracts examined caused digestion of the cuticle and decreased the activity of the tested nemat ... | 2007 | 17640402 |
| identifying the pattern of olfactory deficits in parkinson disease using the brief smell identification test. | selective olfactory deficits occur in 70% to 90% of patients with parkinson disease, independent of disease severity and duration. olfactory testing may be a useful diagnostic aid for parkinson disease, but the types of odors most commonly affected need to be identified. | 2003 | 12707068 |
| application of statistical experimental designs for the optimization of medium constituents for the production of citric acid from pineapple waste. | statistical experimental designs were applied for the optimization of medium constituents for citric acid production by yarrowia lipolytica ncim 3589 in solid state fermentation (ssf) using pineapple waste as the sole substrate. using plackett-burman design, yeast extract, moisture content of the substrate, kh(2)po(4) and na(2)hpo(4) were identified as significant variables which highly influenced citric acid production and these variables were subsequently optimized using a central composite de ... | 2008 | 17936623 |
| effectiveness of radiation processing for elimination of salmonella typhimurium from minimally processed pineapple (ananas comosus merr.). | the microbiological quality of market samples of minimally processed (mp) pineapple was examined. the effectiveness of radiation treatment in eliminating salmonella typhimurium from laboratory inoculated ready-to-eat pineapple slices was also studied. microbiological quality of minimally processed pineapple samples from mumbai market was poor; 8.8% of the samples were positive for salmonella. d(10) (the radiation dose required to reduce bacterial population by 90%) value for s. typhimurium inocu ... | 2007 | 17995808 |
| determination of antioxidant properties of aromatic herbs, olives and fresh fruit using an enzymatic sensor. | the aim was to experimentally evaluate the antioxidant capacity of different fresh aromatic herbs (field balm, marjoram, parsley, rosemary, sage, sweet basil), several varieties of olives from central italy ('carboncello', 'rosciolo', 'olivastro', 'coratello', 'leccino', 'frantoio') and several types of fresh fruit (apple, apricot, banana, cherry, fig, grape, medlar, melon, peach, pear, pineapple, plum, water melon, yellow plum) using a superoxide dismutase (sod) biosensor developed by the prese ... | 2003 | 12733012 |
| in vitro anthelmintic effects of cysteine proteinases from plants against intestinal helminths of rodents. | infections with gastrointestinal (gi) nematodes are amongst the most prevalent worldwide, especially in tropical climates. control of these infections is primarily through treatment with anthelmintic drugs, but the rapid development of resistance to all the currently available classes of anthelmintic means that alternative treatments are urgently required. cysteine proteinases from plants such as papaya, pineapple and fig are known to be substantially effective against three rodent gi nematodes, ... | 2007 | 18005461 |
| bromelain induces cardioprotection against ischemia-reperfusion injury through akt/foxo pathway in rat myocardium. | bromelain (br), a proteolytic enzyme extracted from the stem of the pineapple, is known to possess anti-inflammatory activity and has been shown to reduce blood viscosity, prevent the aggregation of blood platelets, and improve ischemia-reperfusion (i/r) injury in a skeletal muscle model. we investigated the capacity of br to limit myocardial injury in a global i/r model. adult male sprague-dawley rats were divided into two groups: control (pbs) and br at 10 mg/kg in pbs administered via intrape ... | 2008 | 18192224 |
| an outbreak of campylobacter jejuni infections associated with food handler contamination: the use of pulsed-field gel electrophoresis. | in 1998, an outbreak of campylobacter jejuni infections occurred in kansas among persons attending a school luncheon; community cases were also reported. in a cohort study of luncheon attendees, 27 (17%) of 161 persons reported illness. consuming gravy (relative risk [rr], 4.2; 95% confidence interval [ci], 1.5-11.7) or pineapple (rr, 2.4; 95% ci, 1.0-5.7) was associated with illness. both foods were prepared in a kitchen that served 6 other schools where no illness was reported. a cafeteria wor ... | 2001 | 11078485 |
| enzymatic browning and biochemical alterations in black spots of pineapple [ananas comosus (l.) merr.]. | penicillium funiculosum thom. was consistently isolated from pineapple-infected fruitlet (black spots). polyphenol oxidase, peroxidase, and laccase activities were determined in extracts from contiguous and infected fruitlets. healthy fruitlets showed a rather high level of polyphenol oxidase (optimum ph 7.0), and this activity was tremendously increased (x 10) in contiguous infected fruitlets. furthermore, infected fruitlets also exhibited laccase activity (optimum ph 4.0), while peroxidase was ... | 2003 | 14506857 |
| just noticeable differences in component concentrations modify the odor quality of a blending mixture. | the odors we perceive are mainly the result of mixtures of odorants that, however, are commonly perceived as single undivided entities; nevertheless, the processes involved remain poorly explored. it has been recently reported that perceptual blending based on configural olfactory processing can cause odorant mixtures to give rise to an emergent odor not present in the components. the present study examined whether specific component proportions are required to elicit an emergent odor. starting ... | 2008 | 18304991 |
| flavor analysis in a pharmaceutical oral solution formulation using an electronic-nose. | flavors are commonly used in pharmaceutical oral solutions and oral suspensions to mask drug bitterness and to make the formulation more palatable. flavor analysis during product development is typically performed by human organoleptic analysis, which is often expensive and less objective. a novel approach using a metal oxide sensor-based instrument (electronic-nose) for headspace analysis was explored to replace human sensory perception for consistent qualitative and quantitative analysis of fl ... | 2004 | 15127800 |
| evaluation of selection strategies alternative to nptii in genetic transformation of citrus. | the neomycin phosphotransferase (nptii) selection system has proved successful in citrus transformation; however, it may be recommendable to replace it given the pressure exerted against antibiotic-resistance selectable marker genes in transgenic plants. the present work investigates three different selection alternatives, comparing them to nptii selection in two citrus genotypes, carrizo citrange and pineapple sweet orange. the first method used the beta-glucuronidase (uida) reporter marker gen ... | 2008 | 18317775 |
| naturally occurring fruit juices dislodge meat bolus obstruction in vitro. | oesophageal meat bolus obstruction is often removed endoscopically/surgically with attendant morbidity and mortality. anecdotal evidence suggests that fruit juices' enzymes may dissolve meat boluses. to assess this, an in vitro study was carried out. cooked chicken was tightly packed between 10 and 8 ml markers of 80, 10 ml syringes. two millilitres of fresh juice from lemons, papaya, kiwi fruits, pineapples, frozen and then thawed pineapple juice, processed pineapple juice, coca-cola and saliva ... | 2004 | 15533162 |
| cloning, localization and expression analysis of vacuolar sugar transporters in the cam plant ananas comosus (pineapple). | in photosynthetic tissues of the cam plant pineapple (ananas comosus), storage of soluble sugars in the central vacuole during the daytime and their remobilization at night is required to provide carbon skeletons for nocturnal co(2) fixation. however, soluble sugars produced photosynthetically must also be exported to support growth processes in heterotrophic tissues. to begin to address how vacuolar sugar storage and assimilate partitioning are regulated in a. comosus, degenerate pcr and cdna l ... | 2008 | 18408220 |
| comparative content of total polyphenols and dietary fiber in tropical fruits and persimmon. | recent studies have shown that dietary fiber and polyphenols of vegetables and fruits improve lipid metabolism and prevent the oxidation of low density lipoprotein cholesterol (ldl-c), which hinder the development of atherosclerosis. the goal of this study was to measure the total polyphenol and dietary fiber contents of some tropical fruits (i.e., pineapple, wax apple, rambutan, lichi, guava, and mango) and compare the results to the content of these substances in the better characterized persi ... | 1999 | 15539312 |
| inactivation of escherichia coli and listeria innocua in kiwifruit and pineapple juices by high hydrostatic pressure. | escherichia coli and listeria innocua in kiwifruit and pineapple juices were exposed to high hydrostatic pressure (hhp) at 300 mpa for 5 min. both bacteria showed equal resistance to hhp. using low (0 degrees c) or sub-zero (-10 degrees c) temperatures instead of room temperature (20 degrees c) during pressurization did not change the effectiveness of hhp treatment on both bacteria in studied juices. pulse pressure treatment (multiple pulses for a total holding time of 5 min at 300 mpa) instead ... | 2008 | 18455820 |
| bromelain treatment decreases neutrophil migration to sites of inflammation. | bromelain, a mixture of proteases derived from pineapple stem, has been reported to have therapeutic benefits in a variety of inflammatory diseases, including murine inflammatory bowel disease. the purpose of this work was to understand potential mechanisms for this anti-inflammatory activity. exposure to bromelain in vitro has been shown to remove a number of cell surface molecules that are vital to leukocyte trafficking, including cd128a/cxcr1 and cd128b/cxcr2 that serve as receptors for the n ... | 2008 | 18482869 |
| profilin sensitization detected in the office by skin prick test: a study of prevalence and clinical relevance of profilin as a plant food allergen. | profilin, a pan-allergen present in all eukaryotic cells, is one of the main causes of cross-sensitization between pollen and plant-derived foods, but its clinical relevance as a food allergen is still debated. | 2008 | 18489029 |
| survival of sa11 rotavirus in fresh fruit juices of pineapple, papaya, and honeydew melon. | survival of rotavirus in fresh fruit juices of papaya (caraca papaya l.), honeydew melon (cucumis melo l.), and pineapple (ananas comosus [l.] merr.) was studied. clarified juices were prepared from pulps of ripe fruits and sterilized by ultrafiltration. one milliliter of juice from each fruit was inoculated with 20 microl of 1 x 10(6) pfu of sa11 rotavirus and sampled immediately (0-h exposure) and 1 and 3 h later at 28 degrees c. mean viral titers in juices of papaya (ph 5.1) and honeydew melo ... | 2008 | 18522042 |
| continuous growth kinetics of candida utilis in pineapple cannery effluent. | candida utilis was grown on a pineapple cannery effluent as the sole carbon and energy source in a chemostat at dilution rates between 0.10 and 0.62 h(-1) to determine the growth kinetics. the principal sugars in the effluent were sucrose, glucose, and fructose. the cell yield coefficient on carbohydrate varied with dilution rate and a maximum value of 0.63 was observed at a dilution rate of 0.33 h(-1). the steady-state concentrations of carbohydrate, reducing sugar, and chemical oxygen demand ( ... | 1984 | 18553441 |
| lichen striatus in an adult following trauma. | a 36-year-old man presented with a linear erythematous eruption along his right forearm and dystrophy of his right thumbnail. these changes had developed 2 weeks after his right thumb had been pricked by a pineapple leaf and evolved over a 6-week period. histopathology revealed features consistent with lichen striatus. he complained of mild intermittent pruritus, which responded to moderate-potency topical corticosteroids. at 12 months the skin eruption had improved, but the nail changes persist ... | 2005 | 15670174 |
| pineapple juice for digestion of swamp eel viscera for harvesting infective-stage larva of gnathostoma spp. | third-stage larvae were used as antigen in the diagnosis of gnathostomiasis in western blot analysis. normally, the larvae were obtained from digestion of eel's liver (fluta alba) by the enzyme pepsin. we used pineapple juice (ananus comosus) instead of enzyme pepsin in harvesting gnathostoma spinigerum third-stage larvae. the difference in recovered larvae numbers, between pineapple juice and pepsin, were not statistically significantly different (p>0.05). the larvae from pepsin and pineapple j ... | 2004 | 15691122 |
| carotenoid production by xanthophyllomyces dendrorhous: use of pineapple juice as a production medium. | to select a carotenoid-hyperproducing mutant and to formulate pineapple juice as a carotenoid production medium. | 2008 | 18673431 |
| disease development and symptom expression of xanthomonas axonopodis pv. citri in various citrus plant tissues. | abstract experimental inoculations of xanthomonas axonopodis pv. citri in different tissues of tahiti lime and pineapple sweet orange were conducted monthly under natural conditions on réunion island. the interactions between a set of environmental and epidemic variables associated with disease expression and 184 different factor combinations were investigated to determine the parameters needed to explain asiatic citrus canker (acc) disease expression. area under the disease progress curve (audp ... | 2003 | 18943164 |
| proteinase activity and stability of natural bromelain preparations. | bromelain is a complex mixture of proteinases typically derived from pineapple stem. similar proteinases are also present in pineapple fruit. beneficial therapeutic effects of bromelain have been suggested or proven in several human inflammatory diseases and animal models of inflammation, including arthritis and inflammatory bowel disease. however, it is not clear how each of the proteinases within bromelain contributes to its anti-inflammatory effects in vivo. previous in vivo studies using bro ... | 2005 | 15710346 |
| inactivation of escherichia coli in a tropical fruit smoothie by a combination of heat and pulsed electric fields. | moderate heat in combination with pulsed electric fields (pef) was investigated as a potential alternative to thermal pasteurization of a tropical fruit smoothie based on pineapple, banana, and coconut milk, inoculated with escherichia coli k12. the smoothie was heated from 25 degrees c to either 45 or 55 degrees c over 60 s and subsequently cooled to 10 degrees c. pef was applied at electric field strengths of 24 and 34 kv/cm with specific energy inputs of 350, 500, and 650 kj/l. both processin ... | 2008 | 19019120 |
| high-efficiency agrobacterium-mediated transformation of citrus via sonication and vacuum infiltration. | an improved method for the agrobacterium infiltration of epicotyl segments of 'pineapple' sweet orange [citrus sinensis (l.) osbeck] and 'swingle' citrumelo [citrus paradisi macf. x poncirus trifoliata (l.) raf.] was developed in order to increase transformation frequency. sonication-assisted agrobacterium-mediated transformation (saat), vacuum infiltration, and a combination of the two procedures were compared with conventional agrobacterium-mediated inoculation method ('dipping' method). it wa ... | 2009 | 19048258 |
| pomegranate juice inhibits sulfoconjugation in caco-2 human colon carcinoma cells. | several fruit juices have been reported to cause food-drug interactions, mainly affecting cytochrome p450 activity; however, little is known about the effects of fruit juices on conjugation reactions. among several fruit juices tested (apple, peach, orange, pineapple, grapefruit, and pomegranate), pomegranate juice potently inhibited the sulfoconjugation of 1-naphthol in caco-2 cells. this inhibition was both dose- and culture time-dependent, with a 50% inhibitory concentration (ic(50)) value ca ... | 2008 | 19053852 |
| involvement of carbohydrate epitopes in the ige response of celery-allergic patients. | this study was performed to get further insights into antibody responses to cross-reactive carbohydrate determinants (ccd), including initial experiments to prove the biological activity of anti-ccd ige. earlier studies have shown that ige specific for ccd occurs in about 25% of celery-allergic patients. the clinical significance of these antibody specificities is doubtful. | 1999 | 10529586 |
| the naturally occurring furanones: formation and function from pheromone to food. | three closely related 4-hydroxy-3(2h)-furanones have been found in a range of highly cooked foodstuffs where they are important flavour compounds with aroma threshold values as low as 20 micrograms kg-1 water (approximately 0.14 mumol l-1). the compounds are formed mainly as a result of the operation of the maillard reactions between sugars and amino acids during heating but one compound, 5-(or 2)-ethyl-2-(or 5)-methyl-4-hydroxy-3(2h)-furanone, appears in practice to be produced by yeast, probab ... | 1999 | 10466251 |
| genome organization and phylogenetic relationship of pineapple mealybug wilt associated virus-3 with family closteroviridae members. | the nucleotide sequence of pineapple mealybug wilt associated virus-3 (pmwav-3) (closteroviridae: ampelovirus), spanning seven open reading frames (orfs) and the untranslatable region of the 3' end was determined. based on the amino acid identities with orthologous orfs of pmwav-1 (54%-73%) and pmwav-2 (13%-35%), we propose pmwav-3 is a new species in the pmwav complex. pmwav-3 lacks an intergenic region between orf1b and orf2, encodes a relatively small, 28.8 kda, coat protein, and lacks a coat ... | 2009 | 19225875 |
| potential for land application of contaminated sewage sludge treated with fermented liquid from pineapple wastes. | the suitability for land application of anaerobically digested sewage sludge treated with naturally fermented and aspergillus niger (a. niger) fermented raw liquid from pineapple wastes, in terms of changes in the forms and amount of heavy metals and nutrient and pathogen content, were investigated in this study. leaching studies for fermented liquid at optimum conditions (ph and contact time with best metal removal efficiencies) were carried out for the removal of cd, cr, cu, pb, ni and zn from ... | 2009 | 19232826 |
| effects of inducers of systemic acquired resistance on reproduction of meloidogyne javanica and rotylenchulus reniformis in pineapple. | the potency of the inducers of systemic acquired resistance (sar), acibenzolar-s-methyl, dl-alpha-amino-n-butyric acid (aaba), dl-beta-amino-n-butyric acid (baba), gamma-amino-n-butyric acid (gaba), p-aminobenzoic acid (paba), riboflavin, and salicylic acid (sa), in reducing reproduction of meloidogyne javanica and rotylenchulus reniformis in pineapple was investigated. all inducers were applied as foliar sprays to 1-mon-old pineapple plants (20 ml/plant) grown in 22-cm-diam. pots in the greenho ... | 2006 | 19259535 |
| management of rotylenchulus reniformis in pineapple, ananas comosus, by intercycle cover crops. | the effects of intercycle cover crops on rotylenchulus reniformis population densities in pineapple were evaluated in one greenhouse and two field experiments. in the greenhouse, crotalaria juncea, brassica napus, and tagetes erecta were planted for 3 months and then incorporated. these treatments were compared to weedy fallow with or without 1,3-dichloropropene (1,3-d) in three soils (makawao fallow, wahiawa fallow, and wahiawa pineapple) naturally infested with r. reniformis. all cover crop in ... | 2002 | 19265916 |
| intercropping cover crops with pineapple for the management of rotylenchulus reniformis. | effect of cover crops intercropped with pineapple (ananas comosus) on rotylenchulus reniformis population densities and activity of nematode-trapping fungi (ntf) were evaluated in two cycles of cover crop and pineapple. sunn hemp (crotalaria juncea), rapeseed (brassica napus), african marigold (tagetes erecta), or weeds were intercropped with pineapples. beds planted with sunn hemp or rapeseed had lower population densities of r. reniformis than african marigold, weeds, or pineapple plots during ... | 2003 | 19265973 |
| changes in plant-parasitic nematode populations in pineapple fields following inter-cycle cover crops. | the use of plant-covers oat (arena sativa l.), rhodesgrass (chloris gayana kunth), soybean (glycine max [l.] merr.), and marigold (tagetes patula l.) during pineapple inter-cycle planting periods was investigated at two sites (kunia and whitmore, oahu, hi) as a potential means to reduce population densities of rotylenchulus reniformis, helicotylenchus dihystera, and paratylenchus spp. clean fallow and fallow covered with pineapple-plant residues (mulch) were the controls without plant-cover. reg ... | 1996 | 19277173 |
| occurrence of pasteuria-like organisms on selected plant-pamsitic nematodes of pineapple in the hawaiian islands. | soils from 320 sites representing diverse undisturbed habitats from five hawaiian islands were assessed for occurrence of pasteuria-like organisms. mean annual rainfall at sites ranged from 125-350 cm, elevation from 69-2,286 m, and annual mean temperature from 12-24 c. seven different natural communities were represented: wet lowland, mesic lowland, wet montane, mesk montane, dry montane, mesic subalpine, and dry alpine. pasteuria spp. in a soil sample was detected by baiting with infective sta ... | 1995 | 19277305 |
| evaluation of ethoprop and tetrathiocarbonate for reniform nematode control in pineapple. | ethoprop and disodium tetrathiocarbonate (ttc) were evaluated as replacements of fenamiphos and 1,3-dichloropropene (1,3-d) for control of rotylenchulus reniformis on pineapple in hawaii. treatments were established in a field on the del monte fresh fruit (hawaii) plantation in spring 1991. preplant soil treatments consisted of fumigation with 1,3-d at 226 kg a.i./ha and ttc at 135 kg or 270 kg a.i./ha. postplant nematicides for the 1,3-d treated plots were fenamiphos (3.4 kg a.i./ha trimonthly) ... | 1995 | 19277334 |
| comparison of single- and double-chisel injection methods for the control of rotylenchulus reniformis in pineapple. | the efficacy of 1,3-dichloropropene (1,3-d) applied with one or two chisels was determined for control of rotylenchulus reniformis on pineapple. the soil was fumigated with 1,3-d at 157 liters/ha with either a single chisel 46 cm deep or two chisels 41 cm deep in replicated experiments conducted in four commercial fields. soil samples were collected before fumigation and 45 days afterward from three depths and three positions. the three depths were 0-15, 16-30, and 31-45 cm; and the three positi ... | 1993 | 19279838 |
| nematicide efficacy, root growth, and fruit yield in drip-irrigated pineapple parasitized by rotylenchulus reniformis. | a 3-year field trial near kunia, oahu, hawaii, was conducted to evaluate four nematicide treatments for efficacy against rotylenchulus reniformis in drip-irrigated pineapple (ananas comosus l. (merr.)). the treatments were (a) preplant fumigation with 1,3-dichloropropene (1,3-d) (336 liter/ ha) and postplant drip application of fenamiphos (3.4 kg/ha) with restricted irrigation, (b) preplant 1,3-d only, weekly irrigation, (c) 1,3-d fenamiphos, weekly irrigation, and (d) postplant fenamiphos only, ... | 1992 | 19283033 |
| pineapple nematode research in hawaii: past, present, and future. | the first written record of pineapple in hawaii is from 1813. in 1901 commercial pineapple production started, and in 1924 the experiment station for pineapple research was established. nematode-related problems were recognized in the early 1900s by n. a. cobb. from 1920 to approximately 1945 nematode management in hawaiian pineapple was based on fallowing and crop rotation. during the 1920s and 1930s g. h. godfrey conducted research on pineapple nematode management. in the 1930s and 1940s m. b. ... | 1989 | 19287592 |
| survey of current distribution of rotylenchulus reniformis in the united states. | the reniform nematode, rotylenchulus reniformis, has been reported from all gulf coast states, arkansas, hawaii, north carolina, and south carolina. experts in 11 states identified the counties or parishes where the nematode is found and provided information regarding associated soil parameters, climate, crops, and crop management. rotylenchulus reniformis has been detected in 187 counties and parishes of the southeastern united states and is most widespread in louisiana, mississippi, alabama, f ... | 1990 | 19287782 |
| correlations of rotylenchulus reniformis population densities with 1,3-dichloropropene dosage rate and pineapple yields. | the relationships between rotylenchulus reniformis population densities and pineapple growth and yield were studied in a small-plot field experiment. increasing rates of handgun-injected 1,3-dichloropropene (1,3-d) preplant fumigant from 0 to 337 liters/ha resulted in greater nematode control, faster plant growth, and larger pineapple fruits. rotylenchulus reniformis population densities at 2, 4, 6, and 8 months postplant were correlated with plant size and yield. the shorter the time period fol ... | 1990 | 19287789 |
| nematode problems affecting agriculture in the philippines. | nematodes are considered major pests on most economic crops in the philippines, particularly on banana, pineapple, citrus, tomato, ramie, and sugarcane. radopholus similis is the most destructive nematode on banana, while meloidogyne spp. are more serious on various vegetable crops such as tomato, okra, and celery and on fiber crops such as ramie. tylenchulus semipenetrans is a problem on citrus and rotylenchulus reniformis on pineapple and some legume crops. hirschmanniella oryzae and aphelench ... | 1988 | 19290204 |
| production of lactic acid and fungal biomass by rhizopus fungi from food processing waste streams. | this study proposed a novel waste utilization bioprocess for production of lactic acid and fungal biomass from waste streams by fungal species of rhizopus arrhizus 36017 and r. oryzae 2062. the lactic acid and fungal biomass were produced in a single-stage simultaneous saccharification and fermentation process using potato, corn, wheat and pineapple waste streams as production media. r. arrhizus 36017 gave a high lactic acid yield up to 0.94-0.97 g/g of starch or sugars associated with 4-5 g/l o ... | 2005 | 16208461 |
| investigation of the utility of pineapple juice and pineapple waste material as low-cost substrate for ethanol fermentation by zymomonas mobilis. | the utility of the juice of rotten or discarded pineapples and the waste material of the production of pineapple juice as low-cost substrates for ethanol production by zymomonas mobilis was investigated. z. mobilis atcc 10988 produced 59.0 g.l(-1) ethanol in undiluted pineapple juice without nutritional supplementation and without the regulation of the ph while 42.5 g.l(-1) ethanol was obtained using a 125 g.l(-1) sucrose medium supplemented with 10 g.l(-1) yeast extract and mineral salts. ethan ... | 1999 | 16232532 |
| evaluation of the antioxidant activity of non-transformed and transformed pineapple: a comparative study. | pineapple has several beneficial properties including antioxidant activity. we investigated the antioxidant effect of different extracts of non-transformed (s) and transformed pineapple (with the magainin gene construct, [ts], for disease resistance). they were examined using 1,1-diphenyl-2-picryl hydrazyl (dpph) radical scavenging, oxygen radical absorbance capacity (orac) and lipid peroxidation assays besides phenolic and flavonoid contents. hplc analysis was carried out to identify the possib ... | 2009 | 19563857 |
| pilot-scale vermicomposting of pineapple wastes with earthworms native to accra, ghana. | pineapple wastes, an abundant organic waste in accra, ghana, were vermicomposted using native earthworms (eudrilus eugeniae kinberg) collected from the banks of streams and around bath houses of this city. triplicate pilot-scale vermidigesters containing about 90 earthworms and three other control boxes with no earthworms were fed pineapple pulp or peels, and the loss of wet mass was monitored over 20 weeks. in a second experiment, a 1:1 mixture of pineapple peels and pulp (w/w) was fed to tripl ... | 2009 | 19620003 |
| transfer of pantoea citrea, pantoea punctata and pantoea terrea to the genus tatumella emend. as tatumella citrea comb. nov., tatumella punctata comb. nov. and tatumella terrea comb. nov. and description of tatumella morbirosei sp. nov. | pantoea citrea, pantoea punctata and pantoea terrea were described for strains isolated from fruit and soil originating in japan. these three 'japanese' species have been shown to be phylogenetically distant from other species of the genus pantoea. it has been observed previously that, using multilocus sequence analysis (mlsa), the 'japanese' species consistently formed a distinct clade with an extended branch length, casting doubt on the inclusion of these species within the genus pantoea. furt ... | 2010 | 19654354 |
| pharmacokinetic study of p-coumaric acid in mouse after oral administration of extract of ananas comosus l. leaves. | quantification of p-coumaric acid in mouse plasma following oral administration of ananas comosus l. leaves was achieved by reversed-phase high-performance liquid chromatography using a mobile phase of water-acetonitrile (82:18, v/v) and uv detection at 310 nm. the method was linear (determination coefficient, r2 = 0.9997) within the tested range (0.04-1.28 microg/ml). intra- and inter-day precision coefficients of variation and accuracy bias were acceptable (maximal cv value was 4.06% for intra ... | 2006 | 16506268 |