Publications
Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
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normative data for commercial pineapple juice from concentrate. | normative data for pineapple juice from concentrate were determined for 19 samples, including 5 that had been aseptically processed and representing 4 of the major pineapple growing regions of the world. values are reported for sugars, organic acids, including isocitric acid, metals (specifically potassium, sodium calcium, and magnesium), delta 13c, and oligosaccharides. although geographical variation existed, the observed ranges and variances were small enough to be useful in describing authen ... | 2016 | 8069130 |
resistance to heavy metals by some nigerian yeast strains. | the heavy metal resistance of yeasts isolated from sugary substrates such as orange, palm wine and pineapple and identified as saccharomyces carlsbergensis and s. cerevisiae was studied. the yeast isolates were tested against different concentrations of cadmium, copper, manganese, silver and zinc salts ranging from 1 to 20 mmol/l. local yeasts showed resistance to 3-15 mmol/l cadmium, 18-20 copper, 16-20 manganese, 1-9 silver and 16-19 for zinc. the significance of the results is discussed in re ... | 1993 | 8112693 |
in vitro effect of vegetable and fruit juices on the mutagenicity of 2-amino-3-methylimidazo[4,5-f]quinoline, 2-amino-3,4-dimethylimidazo[4,5-f]quinoline and 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline. | the antimutagenic potencies of the juices of 28 fruits and 34 vegetables commonly consumed in germany were investigated with respect to the mutagenic activities induced by 2-amino-3-methyl[4,5-f]-quinoline (iq), and in part by 2-amino-3,4-dimethylimidazo[4,5-f]quinoline (meiq) or 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (meiqx) in salmonella typhimurium ta98 and ta100. with iq, weak to strong antimutagenic activities were found in 68% of the fruits and 73% of the vegetables that were tested ... | 1994 | 8206443 |
a prospective randomized study with mineral oil and oral lavage solution for treatment of faecal impaction in children. | faecal impaction with or without encopresis is a very common problem. we performed a randomized, open-label, prospective study to compare the efficacy and acceptability of the treatment of faecal impaction using either mineral oil or pineapple-flavoured isotonic intestinal lavage solution containing polyethylene glycol-3350 (colyte). thirty-six patients over 2 years of age were randomized to receive either mineral oil or flavoured lavage solution. the dose of mineral oil was 2 to 8 tablespoons t ... | 1993 | 8280820 |
inductively coupled plasma atomic emission spectrometric determination of tin in canned food. | various canned foods were digested sequentially with hno3 and hcl, diluted to 100 ml, and filtered, and then tin was determined by inductively coupled plasma atomic emission spectrometry (icp/aes). samples of canned satsuma mandarin, peach, apricot, pineapple, apple juice, mushroom, asparagus, evaporated milk, short-necked clam, spinach, whole tomato, meat, and salmon were evaluated. sample preparations did not require time-consuming dilutions, because icp/aes has wide dynamic range. the standar ... | 1993 | 8286977 |
sugarcane workers: morbidity and mortality. | sugarcane is, after pineapple, the largest agricultural industry in hawaii. there have been reports that this industry poses certain health hazards. to investigate this possible hazard in hawaii, the relationship of employment on a sugarcane plantation to total mortality, the development of definite coronary heart disease (chd), stroke, cancer, lung cancer and certain risk factors were examined in men of japanese ancestry participating in the honolulu heart program. after 18 years of follow-up, ... | 1993 | 8300403 |
purification and some properties of peroxidase isozymes from pineapple stem. | the enzyme peroxidase is widely distributed among the higher plants. isozymes of peroxidase are known to occur in a variety of tissues in a large number of plant species. in this study, peroxidase isozymes were purified from the extract of pineapple stem through successive steps of ammonium sulfate fractionation, cm-sepharose cl-6b chromatographies and deae-sepharose cl-6b chromatographies. by these steps, twelve isozymes of peroxidase were obtained. some properties of the isozymes were studied ... | 1993 | 8490564 |
systemic allergic reaction and diarrhoea after pineapple ingestion. | some foods may initiate allergic reactions. anaphylaxis due to mangoes, oranges, nuts and other foods has been reported earlier. we report the clinical and laboratory features of 32 patients who became symptomatic shortly after they had eaten pineapples. seventeen patients were males and 15 females with ages ranging from 5 to 70 years. most of the patients complained of intense itching and urticarial rashes, followed by abdominal pain, vomiting and diarrhoea. sixty-eight percent of the patients ... | 1993 | 8511816 |
context effect of common objects on visual processing. | in previous experiments on visual processing it was shown that correct identification of sequentially and simultaneously presented numerals declined as the presentation interval was decreased from 50.0 to 16.7 ms/numeral. to determine how performance was influenced in context, common everyday objects were used in place of the numerals. these objects were grouped into 36 different categories with 4 objects per category. an example of a category was fruit: apple, banana, pear, pineapple. for all e ... | 1995 | 8539008 |
dietary fibre in pineapple fruit. | 1995 | 8549542 | |
neutral detergent fibre and pectic substances in pineapple and its derivates: juices and nectars. | 1995 | 8549548 | |
oral administration of protease inhibits enterotoxigenic escherichia coli receptor activity in piglet small intestine. | the virulence of enterotoxigenic escherichia coli (etec) is attributed to their ability to adhere via fimbrial adhesins to specific receptors located on the intestinal mucosa. a novel approach to preventing etec induced diarrhoea would be to prevent attachment of etec to intestine by proteolytically modifying the receptor attachment sites. this study aimed to examine the effect of bromelain, a proteolytic extract obtained from pineapple stems, on etec receptor activity in porcine small intestine ... | 1996 | 8566855 |
from the rotating drum to the pineapple-cancoil kidney: the unpublished history of the twin-coil. | 1995 | 8573012 | |
solution structure of bromelain inhibitor iv from pineapple stem: structural similarity with bowman-birk trypsin/chymotrypsin inhibitor from soybean. | bromelain inhibitor vi from pineapple stem (bi-vi) is a unique double-chain inhibitor with an 11-residue light chain and a 41-residue heavy chain by disulfide bonds and inhibits the cysteine proteinase bromelain competitively. the structure of bi-vi in aqueous solution was determined using nuclear magnetic resonance spectroscopy and simulated annealing-based calculations. its three-dimensional structure was shown to be composed of two distinct domains, each of which is formed by a three-stranded ... | 1996 | 8611527 |
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 |
synthesis and antifungal activity of cinnamic acid esters. | cinnamic, p-coumaric and ferulic acids were isolated from pineapple stems (ananas comosus var. cayenne). twenty-four kinds of esters were prepared from these acids, alcohols and the components of alpinia. isopropyl 4-hydroxycinnamate (11) and butyl 4-hydroxycinnamate (12) were found to have almost the same effectiveness in antifungal activity against pythium sp. at 10 ppm as that of the commercial fungicide iprobenfos (kitazin p). | 1996 | 8704323 |
[microbiological quality of street sold fruits in san josé, costa rica]. | the sanitary quality of street sold fruits was analyzed during the period from march 1990 thru march 1993 in san jose, costa rica. it looked for the presence of salmonella spp. shigella spp., escherichia coli as well as fecal coliforms in natural refreshments, fruit salads and the fruits most frecuently expended on streets, either in slices as the pineapple (ananas comosus), papaya (carica papaya), non-ripe mangoe (mangifera indica) and watermelon (citrullus vulgaris) and those that can be eaten ... | 1995 | 8729262 |
[evaluation of biological fish silage in broiler chicken]. | biological fish silage was produced from the mixture of three low price fish species. after mixing it with molasse, papaya and pineapple wastes, and lactobacillus plantarum incoculation, the product was stored for seven days, dehydrated and added to several diets of formulated poultry feed as a substitute of fish meal. physical-chemical and microbiological analyses were done to the raw materials and final products. biological tests of acceptability indicated that chicken preferred diets up to 50 ... | 1995 | 8729265 |
[microbial silage production from eviscerated fish]. | microbial fish silage was produced from a mixture of several fish species that belong to the shrimp by-catch. they were mixed with molasses, fruits (pineapple and papaya), sorbate and a starter of lactobacillus plantarum atcc8014. process was evaluated by ph, acidity, consistency, exudate liquid, non-protein nitrogen, total volatile bases, microbial and toxicological tests. results indicated that acid production and ph reduction occurs during the first two days of processing, later these values ... | 1993 | 8779624 |
[effect of the addition of tropical fruits--pineapple (ananas comosus) and papaya (carica papaya)--on the production of biological silage from fish]. | microbial fish silage was produced from under-utilized fish mixed with juice and waste fruits (pineapple and papaya) at 35 degrees c. six different products were elaborated as following: a: fish muscle with pineapple juice; b: fish muscle with fruit wastes; c: gutted fish with pineapple juice; d: gutted fish with fruit wastes; e: whole fish with pineapple juice; f: whole fish with fruit wastes. process development was evaluated by measuring: ph, acidity, non-protein nitrogen, consistency and exu ... | 1993 | 8779625 |
acidic catecholamine metabolites and 5-hydroxyindoleacetic acid in urine: the influence of diet. | concentrations of vanillylmandelic acid (vma), 3,4-dihydroxyphenylacetic acid (dopac), homovanillic acid (hva), vanillic acid (va) and 5-hydroxyindoleacetic acid (5-hiaa) in urine from healthy subjects were determined by a high-performance liquid chromatography system with a mixed-mode (c18/anion-exchange) column and an 8-channel electrochemical detector, in order to study the influence of diet, diurnal variation and age. the urinary excretion of 5-hiaa increased significantly after eating banan ... | 1996 | 8929065 |
identification and characterization of a pantoea citrea gene encoding glucose dehydrogenase that is essential for causing pink disease of pineapple. | pantoea citrea, a member of the family enterobacteriaceae, causes pink disease of pineapple, whose symptom is characterized by the formation of pink to brown discolorations of the infected portions of the pineapple fruit cylinder upon canning. molecular genetic approaches were applied to elucidate the mechanism responsible for this fruit discoloration. a p. citrea mutant strain, cmc6, defective in its ability to cause pink disease and fruit discoloration, was generated by nitrosoguanidine mutage ... | 1997 | 8979341 |
effect of plant extracts and systemic fungicide on the pineapple fruit-rotting fungus, ceratocystis paradoxa. | antifungal activities of extracts of sixteen plants were tested against ceratocystis paradoxa which causes soft rot of pineapples. xanthium strumarium was the most effective followed by allium sativum. the effectiveness of various extracts against c. paradoxa was in the decreasing order of meriandra bengalensis, mentha piperita, curcuma longa, phlogacanthus thyrsiflorus, toona ciliata, vitex negundo, azadirachta indica, eupatorium birmanicum, ocimum sanctum and leucas aspera. extracts of cassia ... | 1996 | 9022263 |
the prevalence of latex allergy in children seen in a university hospital allergy clinic. | natural rubber latex allergy is responsible for a wide spectrum of clinical symptoms, ranging from rhinoconjunctivitis to severe anaphylaxis, in both adults and children. an association between allergy to latex and allergy to various fruits has been reported. this study investigated the prevalence and clinical significance of latex sensitization in children seen in a university hospital allergy clinic. a total of 453 consecutive children were screened in a 7-month period. a detailed clinical his ... | 1997 | 9062637 |
determination of selenium levels in dairy products and drinks by hydride generation atomic absorption spectrometry: correlation with daily dietary intake. | the selenium concentrations in different dairy products and drinks in the mediterranean coastal area of southeastern spain have been determined by hydride generation atomic absorption spectrometry. mineralization was carried out with an hno3-hclo4 mixture (4:1) in a thermostatted sand bath. selenium determination was carried out by the standard addition method. mean concentrations obtained in diary products varied from 6.87 ng/g (rice pudding) to 178.90 ng/g (caramel custard), and those in drink ... | 2013 | 9102343 |
immunological cross-reactivity of the major allergen from perennial ryegrass (lolium perenne), lol p i, and the cysteine proteinase, bromelain. | antibodies prepared in rabbits against the major allergen from ryegrass (lolium perenne), lol p i, cross-reacted with the cysteine proteinase bromelain from pineapple and vice versa. deglycosylation of the proteins showed that the cross-reaction was based on recognition of the carbohydrate moiety of the allergen, but for bromelain the cross-reaction was most likely due to a combination of factors. the results indicate that the carbohydrate residues from these allergens play an important role in ... | 1997 | 9104799 |
coprecipitation of proteins with matrix ligands: scaleable protein isolation. | matrix ligands are agents for isolating proteins out of dilute crudes by coprecipitating proteins. the ligands have a strong anion sulfonate head which initiates binding to proteins having a positive net charge, zh+ approximately 5-20. initial binding tightens protein conformation and starts to squeeze water from conformationally motile proteins. the tails are stackable hydrophobic organic groups, azoaromatic dyes which draw protein-ligand complexes together. proteins coprecipitate as guests, in ... | 2013 | 9174921 |
"latex-fruit syndrome": frequency of cross-reacting ige antibodies. | an association between allergies to latex proteins and to various foods has been reported and confirmed by rast and immunoblotting inhibition. however, no significant data had been collected on the frequency of specific ige antibodies to fruits in these patients and the frequency of a history of fruit intolerance. serum samples of 136 patients with well-documented, clinically relevant, immediate-type hypersensitivity against latex proteins were analyzed for ige antibodies against a panel of diff ... | 1997 | 9188921 |
bromelain prevents secretion caused by vibrio cholerae and escherichia coli enterotoxins in rabbit ileum in vitro. | diarrhea is a major cause of illness and death in children and young animals. the aim of this study was to investigate the possible therapeutic effect of bromelain, a proteolytic extract obtained from pineapple stems on bacterial toxin and second-messenger agonist-induced intestinal secretion. | 1997 | 9207276 |
inhibition of the mutagenicity of 2-nitrofluorene, 3-nitrofluoranthene and 1-nitropyrene by vitamins, porphyrins and related compounds, and vegetable and fruit juices and solvent extracts. | when 21 vitamins including related compounds haemin, chlorophyllin, chlorophyll, biliverdin and bilirubin, as well as juices from five fruits and 25 vegetables and solvent extracts from the residues of fruits and vegetables were tested for their antimutagenic potencies with respect to mutagenicity induced by 2-nitrofluorene (2-nf), 3-nitrofluoranthene (3-nfa) and 1-nitropyrene(1-np) in salmonella typhimurium ta98 the following results were obtained. the tetracyclic nitroarenes 3-nfa and 1-np wer ... | 1997 | 9207899 |
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 |
recent case histories of food product-metal container interactions using scanning electron microscopy-x-ray microanalysis. | scanning electron microscopy (sem) and x-ray microanalysis (eds) were used to investigate stress corrosion cracking (scc) in plain tinplate food cans, product discoloration, filiform corrosion, pitting/perforation corrosion, and loss of coating adhesion in enameled food cans. intergranular scc of uncoated tinplate occurred in canned pineapple juice. this is a rare occurrence in acid food products. the fracture developed in the can headspace only at the product line/metal interface by an interact ... | 1997 | 9353869 |
complete amino acid sequence of ananain and a comparison with stem bromelain and other plant cysteine proteases. | the amino acid sequences of ananain (ec3.4.22.31) and stem bromelain (3.4.22.32), two cysteine proteases from pineapple stem, are similar yet ananain and stem bromelain possess distinct specificities towards synthetic peptide substrates and different reactivities towards the cysteine protease inhibitors e-64 and chicken egg white cystatin. we present here the complete amino acid sequence of ananain and compare it with the reported sequences of pineapple stem bromelain, papain and chymopapain fro ... | 1997 | 9355753 |
[chemical characteristics of the pulp and oil of the annona tree (annona coriaceae)]. | belonging to the annonaceae family, marolo (annona coriaceae) is a native species of the brazilian "cerrado" región (minas gerais, goiás and distrito federal) and can be found in south american tropical zones. its fruits are highly consumed by local people and commercialized in markets or street stalls. there is, however, a tendency for the extinction of marolo due to deforestation and the large scale plantation of monocultures instead of native plants. the literature still offers no data on the ... | 1995 | 9382684 |
[physico-chemical characterization of acerola (malpighia glabra l.) produced in maringá, paraná state, brazil]. | the acerola malpighia glabra l., originally from the antillas and north of south america, known by the people as cereja-das-antilhas or cereja-do-pará distinguish itself by its high content of vitamin c. the ripe and fresh acerola fruits utilized in experiments, were obtained from farmers of maringá region, paraná state, brazil. the fruits were hulled in steel sieve with 25 mesh and the bagasse (seeds and hull) discarded. these physico-chemical analysis were realized in the pulp: vitamin c, mois ... | 1997 | 9429646 |
[cross-reactivity between bromelain and soluble fraction from wheat flour]. | it is revealed that patients allergic to a water-soluble fraction from wheat flour were sensitive to pineapple enzyme, bromelain. since bromelain has a high similarity to other sh-proteases such as papain, it may imply that the patients may recognize varieties of other sh-proteases as the epitope. | 1997 | 9436335 |
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 |
a shipyard outbreak of salmonellosis traced to contaminated fruits and vegetables. | a large outbreak of food poisoning occurred in september 1996 and involved at least 116 workers at a shipyard in jurong. salmonella weltevreden was isolated from the stool specimens of 24 hospitalised cases and three food handlers, giving a total of 27 bacteriologically confirmed cases (25 symptomatic and two asymptomatic) in this outbreak. based on a case-control analysis, a number of food items consumed on 23 and 24 september 1996 were implicated in the outbreak, viz. a vegetable dish (p < 0.0 ... | 1997 | 9494655 |
isolation and characterization of two forms of an acidic bromelain stem proteinase. | two forms of an acidic bromelain proteinase isolated from crude bromelain, an extract from pineapple stem, were found by a two-step fplc purification procedure. the basic main components were removed by cation exchange chromatography and the breakthrough fraction was further resolved by anion exchange chromatography into 15 protein fractions, only two of which, called sba/a and sba/b, were proteolytically active. these components were characterized by electrospray mass spectroscopy (esms), isoel ... | 1998 | 9619588 |
evaluation of growth of neosartorya spp. on some nigerian fruit products. | growth of neosartorya fischeri, n. fischeri var. spinosa and n. quadricincta on inoculated fruit juice agars (fjas) consisting of 1% agar and juices from mango (mja), orange (oja) and pineapple (pja) containing various levels of added sucrose was studied in terms of the average number of colonies produced by their ascospores, time (days) required before colonies were formed and developed to confluent mycelial mat as well as the level of reproductive spores produced. the means of the number of co ... | 1997 | 9650724 |
the amino acid sequences of isoforms of the bromelain inhibitor from pineapple stem. | eight bromelain inhibitor (bi) isoform fractions were isolated from pineapple stem, and then submitted to conventional amino acid sequencing after performic acid oxidation and subsequent separation of the resulting light and heavy chains. the results revealed that all fractions exhibited microheterogeneity, containing at least two major components, but that all the isoinhibitors have a common double-chain structure (mr = ca. 5,700-5,900) with five disulfide bonds and similar amino acid sequences ... | 1998 | 9685742 |
fear of negative evaluation and gender interact to predict alcoholic beverage preference. | this study was designed to look at the influence of gender, alcohol expectancies, and fear of negative evaluation on beverage selection. participants tasted pineapple juice, tonic water, beer, and diet cola and were then asked which they would prefer when presented with each of all possible alternative pairings. results indicated no effect on beer selection due to alcohol expectancies, but fear of negative evaluation and gender interacted to predict beer selection. post hoc analyses indicated th ... | 2004 | 9698979 |
influence of growth medium on thermal resistance of pediococcus sp. nrrl b-2354 (formerly micrococcus freudenreichii) in liquid foods. | pediococcus sp. is a nonpathogenic heat-resistant spoilage organism that has been used as a test organism in milk pasteurization studies. these characteristics make this bacterium an attractive test organism to study the mode of bacterial thermal inactivation in a food pilot plant. we report here the effect of growth medium on the thermal d value of this organism in skim milk, whole liquid egg, 10% glucose solution, pineapple juice, apple juice, tomato juice, and water at 60 degrees c. thermal i ... | 1998 | 9709230 |
inactivation of microorganisms with microwaves at reduced temperatures. | we developed a pilot-plant nonthermal flow process using microwave energy to inactivate microorganisms. the process consists of multiple passes through the microwave generator. each passed material goes to a receiving tank for subsequent passes. the flow rate was 0.96 to 1.26 kg/min and the dwell time per pass was 1.1 to 1.5 min. five passes were used. the microwave energy is instantaneously and simultaneously applied to the system, and thermal energy is removed by a cooling tube within the proc ... | 1998 | 9709231 |
determination of soil-to-plant transfer factors of 137cs and 90sr in the tropical environment of bangladesh. | soil-to-plant transfer factors (tf) of 137cs and 90sr have been determined for different plants/crops, such as rice, beans, peanuts, pineapple, cabbage, tomato, spinach and grass. they were obtained from radioisotope experiments on plants grown in pots under outdoor ambient tropical conditions for three growing seasons (1994-1996). in the case of 137cs and concerning the above mentioned plants/crops, the average tfs were found to be 0.28, 0.25, 0.77, 0.19, 0.23, 0.28, 0.59 and 0.18, respectively ... | 1998 | 9728745 |
characterization of pucd5000 involved in pink disease color formation by pantoea citrea. | pantoea citrea, the causal agent of pink disease of pineapple, harbors a cryptic plasmid of 5229 bp. designated pucd5000. on the basis of nucleotide and amino acid sequence analyses, pucd5000 contains both replication and mobilization loci (bom and mobcabd) that are similar to those in plasmids psw100 and psw200 in pantoea stewartii and pec3 in erwinia carotovora subsp. carotovora. the survival of p. citrea on pineapple does not depend on pucd5000. however, full pink coloration development, whic ... | 1998 | 9735319 |
retrotransposon-like sequences integrated into the genome of pineapple, ananas comosus. | retrotransposon-like sequences have been serendipitously detected in the genome of commercial pineapple, ananas comosus. the sequence from a 2.6 kb cloned fragment of this element had greatest similarity to the del1 lilium henryi retrotransposon and the gypsy/ty3 group of retroelements. the order of the genes from 5' to 3' was reverse transcriptase, ribonuclease h and integrase. the integrase domain contained the amino acid sequence motifs which have been associated with recognition of the long ... | 1998 | 9747853 |
polymerase chain reaction for rapid detection of campylobacter jejuni in artificially contaminated foods. | campylobacter jejuni was inoculated into a range of raw and ready-to-eat foods. these food samples were used as a test source for detection of this bacterium by the polymerase chain reaction (pcr). specific detection of camp. jejuni, as indicated by a pcr product of 159 bp, was possible with all pre-cooked deli-sliced and raw poultry products tested. all vegetables tested were compatible with the pcr assay. cantaloupe, kiwi and pineapple tested positive while strawberries, watermelon, grapes and ... | 1998 | 9750320 |
prevalence of and risk factors for latex sensitization in patients with spina bifida. | we determined the prevalence of and risk factors for latex sensitization in patients with spina bifida. | 1998 | 9783950 |
effect on cell surface hydrophobicity and susceptibility of helicobacter pylori to medicinal plant extracts. | effects on aqueous extracts of medicinal plants on ten helicobacter pylori strains were studied by the salt aggregation test to determine the possibility to modulate their cell surface hydrophobicity and by an agar diffusion assay for detection of antimicrobial activity. it was established that aqueous extracts of bearberry and cowberry leaves enhance cell aggregation of all h. pylori strains tested by the salt aggregation test, and the extract of bearberry possessed a remarkable bacteriostatic ... | 1999 | 10079525 |
bromelain protects piglets from diarrhoea caused by oral challenge with k88 positive enterotoxigenic escherichia coli. | k88 positive enterotoxigenic escherichia coli (k88+ etec) is an important cause of diarrhoea in young piglets. k88+ etec pathogenesis relies on attachment to specific glycoprotein receptors located on the intestinal mucosa. proteolytic treatment of these receptors in vitro and in vivo prevents attachment of k88+ etec to piglet small intestines and may be of clinical use to prevent k88+ etec pathogenesis. | 1998 | 10189844 |
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 |
risk factors for latex allergy in patients with spina bifida and latex sensitization. | some subjects with spina bifida (sb) and latex sensitization (cutaneous and/or serum ige) can have clinical reactions, while others may have no symptoms after the exposure to latex products. | 1999 | 10231329 |
azoospermia and oligospermia among a large cohort of dbcp applicators in 12 countries. | azoospermia and oligospermia have been well demonstrated among workers exposed to 1,2-dibromo-3-chloropropane (dbcp) in manufacturing and formulation of this pesticide. after dbcp was banned in the united states in the late 1970s, two american companies continued to export it to many less developed countries. in the early to mid-1990s, attorneys assembled a cohort of approximately 26,400 male plaintiffs who, as workers on banana and pineapple plantations in 12 of these countries, had been expose ... | 2015 | 10330512 |
structural characterization of the n-linked oligosaccharides from tomato fruit. | the primary structures of the n-linked oligosaccharides from tomato fruit (lycopersicon esculentum) have been elucidated. for the isolation of the protein fraction, two procedures were employed alternatively: a low temperature acetone powder method and ammonium sulfate precipitation of the tomato extract. after peptic digestion, the glycopeptides were purified by cation-exchange chromatography; the oligosaccharides were released by n-glycosidase a and fluorescently labelled with 2-aminopyridine. ... | 1999 | 10365448 |
gdhb, a gene encoding a second quinoprotein glucose dehydrogenase in pantoea citrea, is required for pink disease of pineapple. | the pink disease of pineapple, caused by the bacterium pantoea citrea, is characterized by a dark coloration on fruit slices after canning. a glucose dehydrogenase (gdh) encoded by the gdha gene has been implicated in the colour formation activity of p. citrea. in this paper it has been shown that p. citrea contains a second, homologous gdh gene and its product, gdhb, represents the main source of gdh activity in this organism. unlike gdha, gdhb is constitutively expressed during the exponential ... | 1999 | 10376838 |
differentiation of fusarium subglutinans f. sp. pini by histone gene sequence data. | fusarium subglutinans f. sp. pini (= f. circinatum) is a pathogen of pine and is one of eight mating populations (i.e., biological species) in the gibberella fujikuroi species complex. this species complex includes f. thapsinum, f. moniliforme (= f. verticillioides), f. nygamai, and f. proliferatum, as well as f. subglutinans associated with sugarcane, maize, mango, and pineapple. differentiating these forms of f. subglutinans usually requires pathogenicity tests, which are often time-consuming ... | 1999 | 10427026 |
incidence of patulin in fruits and fruit juices marketed in campinas, brazil. | one hundred and eleven samples of processed fruit juices (apple, grape, pineapple, papaya, guava, banana and mango) and 38 samples of sound fruits (apple, papaya, mango, pear and peach) produced and marketed in brazil, were analysed for patulin by hplc. only one out of 30 samples of apple juice was found positive at 17 micrograms/l. patulin was not detected in the other foodstuffs. it was found in 14 samples of spoiled fruit samples of apple (150-267 micrograms/kg), pear (134-245 micrograms/kg) ... | 1999 | 10435075 |
bromelain, from pineapple stems, proteolytically blocks activation of extracellular regulated kinase-2 in t cells. | recently, it has emerged that extracellular proteases have specific regulatory roles in modulating immune responses. proteases may act as signaling molecules to activate the raf-1/extracellular regulated kinase (erk)-2 pathway to participate in mitogenesis, apoptosis, and cytokine production. most reports on the role of protease-mediated cell signaling, however, focus on their stimulatory effects. in this study, we show for the first time that extracellular proteases may also block signal transd ... | 1999 | 10452995 |
role of carbohydrate moieties in ige binding to allergenic components of cupressus arizonica pollen extract. | a reduction of ige immunoreactivity after periodate-treatment has been previously reported for various glycoprotein allergens. | 1999 | 10457113 |
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 |
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 |
effects of oral bromelain administration on the impaired immunocytotoxicity of mononuclear cells from mammary tumor patients. | the protease bromelain from pineapple was suggested for adjuvant therapy of malignant diseases. we studied immunological effects of an orally applied bromelain drug on 16 breast cancer patients in comparison with healthy donors. bromelain was applied for 10 days with a daily dose of 3000 f.i.p. units and the immunocytotoxicity of blood monocytes and lymphocytes against the leukemic k562 and mda-mb-231 mammary carcinoma target cells was determined in vitro. in addition, the expression of the cell ... | 2006 | 10523679 |
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 |
characterization of sinapyl derivatives in pineapple (ananas comosus [l.] merill) juice. | three previously unidentified phenolic compounds were found in pineapple (ananas comosus [l.] merill) juice in substantial concentrations and were isolated by semipreparative reverse phase hplc. the structures were elucidated from uv spectra, acid hydrolysis, and subsequent amino acid analysis, mass spectrometry, and two-dimensional nmr spectroscopy. the compounds are identified as s-sinapyl-l-cysteine, n-l-gamma-glutamyl-s-sinapyl-l-cysteine, and s-sinapylglutathione. | 1999 | 10552379 |
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 |
combinatorial approach to flavor analysis. 2. olfactory investigation of a library of s-methyl thioesters and sensory evaluation of selected components. | the odor characteristics of individual components present in a library comprised of s-methyl thioesters were determined independently by two laboratories using similar but not identical techniques. the odor potency was assessed by values of best estimate-gc-lower amount detected by sniffing (be-gc-loads). for small and medium chain s-methyl thioesters, these values were found to increase from 6 ng for s-methyl thiobutanoate to 90 ng for s-methyl thiostearate. all assessors detected a "green", "f ... | 1999 | 10552644 |
method for the quantitative determination of 1-naphthaleneacetic acid in spiked canned pineapple samples by micelle-stabilized room temperature phosphorescence. | this paper presents a convenient method for the determination of 1-naphthaleneacetic acid (naa) plant growth regulator in spiked canned pineapple samples by micellar-stabilized room temperature phosphorescence with sodium dodecyl sulfate as a micellar medium, thallium nitrate as an external heavy atom, and sodium sulfite as an oxygen scavenger. a multivariate optimization approach using the type of central composite blocked cube-star design was carried out. the analytical curve of naa gives a li ... | 1998 | 10554277 |
purification and characterization of macrodontain i, a cysteine peptidase from unripe fruits of pseudananas macrodontes (morr.) harms (bromeliaceae). | a new papain-like cysteine peptidase isolated from fruits of pseudananas macrodontes (morr.) harms, a species closely related to pineapple (ananas comosus l.), has been purified and characterized. the enzyme, named macrodontain i, is the main proteolytic component present in fruit extracts and was purified by acetone fractionation followed by anion-exchange chromatography. separation was improved by selecting both an adequate ph value and a narrow saline gradient. optimum ph range (more than 90% ... | 2000 | 10686143 |
routes of ethephon uptake in pineapple (ananas comosus) and reasons for failure of flower induction. | ethylene-releasing agents such as ethephon (2-chloroethylphosphonic acid) are used widely to induce flowering in pineapples (ananas comosus (l.) merrill). however, ethephon treatment is less reliable in summer, particularly if plants are treated on abnormally hot days. [(14)c]ethephon was used to follow uptake and translocation in leaf tissues. up to 30% of the ethephon entered the leaf within 4 h, and up to 60% by 24 h. uptake was dramatically modified by temperature, relative humidity, solutio ... | 1999 | 10688702 |
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 |
genetic and biochemical characterization of the pathway in pantoea citrea leading to pink disease of pineapple. | pink disease of pineapple, caused by pantoea citrea, is characterized by a dark coloration on fruit slices after autoclaving. this coloration is initiated by the oxidation of glucose to gluconate, which is followed by further oxidation of gluconate to as yet unknown chromogenic compounds. to elucidate the biochemical pathway leading to pink disease, we generated six coloration-defective mutants of p. citrea that were still able to oxidize glucose into gluconate. three mutants were found to be af ... | 2000 | 10735866 |
natural endophytic occurrence of acetobacter diazotrophicus in pineapple plants. | the presence of endophytic acetobacter diazotrophicus was tested for pineapple plants (ananas comosus [l.] merr.) grown in the field. diazotrophic bacteria were isolated from the inner tissues of surface sterilized roots, stems, and leaves of pineapple plants. phenotypic tests permitted the selection of presumptive nitrogen-fixing a. diazotrophicus isolates. restriction fragment length polymorphisms (rflps) of small subunit (ssu) rdna using total dna digested with endonuclease sphi and with endo ... | 2000 | 10790517 |
specific natural isotope profile studied by isotope ratio mass spectrometry (snip-irms): (13)c/(12)c ratios of fructose, glucose, and sucrose for improved detection of sugar addition to pineapple juices and concentrates. | the delta(13)c values of fructose, glucose, and sucrose have been determined in authentic pineapple juices. the sugar fraction is separated from the organic acids by an anionic exchange process. then the individual components (fructose, glucose, and sucrose) are isolated on a preparative hplc device using a nh(2)-type column. it is demonstrated that no significant isotope fractionation occurs when close to 100% of material is recovered and when the hydrolysis of sucrose is avoided. the control o ... | 1999 | 10794628 |
food entrapped in papilla of vater: uncommon cause of vomiting. | a 20 month old girl was admitted for intractable vomiting over several days, with no other symptoms. family and personal history were not contributive. clinical and neurological examination, and routine blood tests and investigations (plain abdominal x ray, upper gastrointestinal tract contrast study, abdominal ultrasonography) were normal. the upper gastrointestinal endoscopy showed a mild antral gastritis and the second portion of duodenum was occupied by a tough, fibrous mass partially embedd ... | 2000 | 10833184 |
multiresidue method for the determination of residues of 251 pesticides in fruits and vegetables by gas chromatography/mass spectrometry and liquid chromatography with fluorescence detection. | a method is described for the determination of 251 pesticide and degradation product residues in fruit and vegetable samples. extraction of the sample with acetonitrile is followed by a salting-out step. co-extractives are removed by passing a portion of the acetonitrile extract through an octadecyl (c18) solid-phase extraction cleanup cartridge and then, in a second cleanup, through a carbon cartridge coupled to an amino propyl cartridge. determination is by gas chromatography with mass-selecti ... | 2008 | 10868594 |
[assessment of the impact of the biological rodenticide biorat in populations of rodents settled in several crops of the republic of costa rica]. | the impact of biological rodenticide biorat on populations of rodents settled in some crops was determined; these crops are highly infested with sigmodon hispidus, a very common vector in various central american countries. the trapping technique and the appraisal of damages allowed to calculate the index of infestation which ranged from 75 to 90 percent in three crops. twenty for to 36 kg of biorat were applied to 6 ha planted with cucumis sativus (cucumber), ipomoea batata (sweet potato) and a ... | 1999 | 10887586 |
intestinal absorption of calcium from foodstuffs as compared to a pharmaceutical preparation. | only few data are available on intestinal calcium absorption from foodstuffs and composite meals in humans. the aim of the study was to compare intraindividually the calcium absorption from milk and from a breakfast with that from a pharmaceutical calcium preparation of equal calcium content. in 8 healthy volunteers between 44 and 58 years of age, the intestinal calcium absorption was measured in randomized order applying the double isotope technique from: (1) 500ml of fresh milk (equivalent to ... | 1999 | 10902536 |
continuous ethanol production from pineapple cannery waste using immobilized yeast cells. | the cells of saccharomyces cerevisiae atcc 24553, were immobilized in k-carrageenan and packed in a tapered glass column reactor for ethanol production from pineapple cannery waste at temperature 30 degrees c and ph 4.5. the maximum productivity was 42.8 g ethanol 1(-1) h(-1) at a dilution rate of 1.5 h(-1). the volumetric ethanol productivity of the immobilized cells was ca. 11.5 times higher than the free cells. the immobilized cell reactor was operated over a period of 87 days at a dilution r ... | 2000 | 10908799 |
dietary serotonin and alcohol combined may provoke adverse physiological symptoms due to 5-hydroxytryptophol. | the urinary excretion products of serotonin (5-hydroxytryptamine, 5ht) are 5-hydroxyindole-3-acetic acid (5hiaa) and 5-hydroxytryptophol (5htol), and the ratio of 5htol to 5hiaa is normally very low (< 0.01 ) in man. intake of foods rich in 5ht (high amounts in banana, pineapple, and walnuts) induces a general increase in the output of 5ht metabolites, without affecting the 5htol/5hiaa ratio. in contrast, during metabolism of ethanol there is a shift in the catabolic pattern of 5ht, and the form ... | 2000 | 10968409 |
mutagenesis and kinetic studies of a plant cysteine proteinase with an unusual arrangement of acidic amino acids in and around the active site. | we report the cloning, overexpression, kinetic analysis, and modeling of the tertiary structure of an unusual plant cysteine proteinase. ananain (ec 3.4.22.31), from ananas comosus (pineapple) is distinguished from all other cysteine proteinases in the papain superfamily by having a unique combination of acidic amino acids. as well as lacking the acidic residue immediately preceding the active site histidine (position 158 in papain), it also lacks the extensive surface network of acidic residues ... | 2000 | 10998237 |
[parasitic helminths from sigmodon hispidus (rodentia: cricetidae) from seasonal and evergreen habitats in costa rica]. | the helminthological fauna of the cotton rat, sigmodon hispidus in a tropical environment varies according to habitat and feeding behavior. six species of nematodes (longistriata adunca, trichostrongylus sigmodontis, strongyloides sigmodontis, litomosoides carinii, monodontus sp. and protospirura sp.) and two species of cestodes (hymenolepis diminuta and raillietina sp.) were found in rats from extensive dry lands in guanacaste where hot temperatures and heterogeneous diet are the rule. only two ... | 2000 | 11021315 |
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 |
evaluation of residual levels of benomyl, methyl parathion, diuron, and vamidothion in pineapple pulp and bagasse (smooth cayenne). | the objective of this research was to study the residual levels of benomyl, methyl parathion, diuron, and vamidothion in pineapple bagasse and pulp. benomyl (benlate), methyl parathion (folidol 600), diuron (krovar), and vamidothion (kilval 300) were applied pre-harvest to pineapples (smooth cayenne). after harvesting, the fruits were washed (100 ppm sodium hypochlorite) and the pulp was separated from the sub-products (peel, core, tops, and tails). the pulp was not submitted to any heat treatme ... | 2000 | 11087549 |
high-performance liquid chromatographic determination with photodiode array detection of ellagic acid in fresh and processed fruits. | a high-performance liquid chromatographic (hplc) procedure based on an isocratic elution with photodiode array detection has been developed for a simple and rapid determination of ellagic acid (ea) in fresh and processed fruits. the homogenized sample was refluxed with methanol and then the extract was refined using a solid-phase cartridge before hplc. we analyzed ea in 40 kinds of fresh fruits and 11 kinds of processed fruits by the developed method. ea was found in several berries, fueijoa, pi ... | 2000 | 11093643 |
nucleotide sequence, genome organization and phylogenetic analysis of pineapple mealybug wilt-associated virus-2. | the genome of pineapple mealybug wilt-associated closterovirus-2 (pmwav-2) was cloned from double-stranded rna isolated from diseased pineapple and its sequence determined. the 3'-terminal 14861 nt of the single-stranded rna genome contains ten open reading frames (orfs) which, from 5' to 3', potentially encode a >204 kda polyprotein containing papain-like protease, methyltransferase and helicase domains (orf1a), a 65 kda rna-dependent rna polymerase (orf1b), a 5 kda hydrophobic protein (orf2), ... | 2001 | 11125151 |
role of yersinia intermedia and pseudomonas putida in the development of a fruity off-flavour in pasteurized milk. | analysis by gas chromatography-mass spectrometry of pasteurized milk with a fruity (pineapple like) off odour and a sour, rancid and soapy taste indicated the presence of concentrations at microg/ml levels of ethyl butanoate, ethyl hexanoate, ethyl octanoate, ethyl decanoate, octanoic acid, decanoic acid and dodecanoic acid. the off-odour and taste were attributed to the presence of these compounds in the milk. microbiological examination confirmed that the milk was also contaminated with a seri ... | 2000 | 11131069 |
ferulic acid is esterified to glucuronoarabinoxylans in pineapple cell walls. | the ester-linkage of ferulic acid (mainly e) to polysaccharides in primary cell walls of pineapple fruit (ananas comosus) (bromeliaceae) was investigated by treating a cell-wall preparation with 'driselase' which contains a mixture of endo- and exo-glycanases, but no hydroxycinnamoyl esterase activity. the most abundant feruloyl oligosaccharide released was o-[5-o-(e-feruloyl)-alpha-l-arabinofuranosyl](1-->3)-o-beta-d-xylopyranosyl-(1-->4)-d-xylopyranose (faxx). this indicated that the ferulic a ... | 2001 | 11261585 |
prevalence and growth of pathogens on salad vegetables, fruits and sprouts. | a total of 120 samples, comprising different types of raw vegetables (seven), fruits (three) and sprouts (three) obtained from street vendors, were tested for aerobic plate count, coliform count and various food-borne pathogens. average aerobic plate counts for salad vegetables, fruits and sprouts were greater than 10(10) cfu/g and 10(9) cfu/g respectively. pathogens isolated were s. aureus, e. coli, enterobacter sp., klebsiella sp., s. typhi, serratia sp., providencia sp. and p. aeruginosa. the ... | 2001 | 11279816 |
diuretic effects of selected thai indigenous medicinal plants in rats. | extracts of five indigenous thai medicinal having ethnomedical application in the treatment of dysuria were investigated for their diuretic activity. root extracts of ananas comosus and carica papaya, given orally to rats at a dose of 10 mg/kg, demonstrated significantly increased urine output (p < 0.01) which was 79 and 74%, respectively, of the effect of an equivalent dose of hydrochlorothiazide. both plant extracts gave similar profiles of urinary electrolyte excretion to that of the hydrochl ... | 2001 | 11297849 |
16s ribosomal dna characterization of nitrogen-fixing bacteria isolated from banana (musa spp.) and pineapple (ananas comosus (l.) merril). | nitrogen-fixing bacteria isolated from banana (musa spp.) and pineapple (ananas comosus (l.) merril) were characterized by amplified 16s ribosomal dna restriction analysis and 16s rrna sequence analysis. herbaspirillum seropedicae, herbaspirillum rubrisubalbicans, burkholderia brasilensis, and burkholderia tropicalis were identified. eight other types were placed in close proximity to these genera and other alpha and beta proteobacteria. | 2001 | 11319127 |
a study on transfer factors of 60co and 65zn from soil to plants in the tropical environment of bangladesh. | soil to plant transfer factor (tf) of 60co and 65zn was determined from radioisotope experiments on plants grown in pots under outdoor ambient tropical conditions for three growing seasons (1995-1998). the tfs were obtained for different plants/crops such as, rice, bean, peanuts pineapple, cabbage, tomato, spinach and grass. the average tf values of 60co are found to be 0.087. 0.15, 0.12, 0.67, 0.28, 0.79, 1.03 and 0.34 respectively for the above mentioned plants/crops. in case of 65zn, the aver ... | 2001 | 11336414 |
quantification of l-ascorbic acid and total ascorbic acid in fruits and spinach by capillary zone electrophoresis. | a standard curve for the quantification of l-ascorbic acid (l-aa) by capillary zone electrophoresis (cze) was established, and the quantification of ascorbic acid and total ascorbic acid in fruits (lemon, sunkist, and pineapple) and spinach were performed using d-isoascorbic acid (d-iaa) as an internal standard. the minimum detection limits (mdls) for l-aa and d-iaa were determined to be 1 and 2 microg/ml, respectively, at 265 nm. dehydroascorbic acid (dhaa) in fruits and spinach was quantified ... | 2001 | 11386660 |
comparison of two cysteine endopeptidases from pseudananas macrodontes (morr.) harms (bromeliaceae). | the properties of two cysteine peptidases (macrodontain i and ii) isolated from fruits of pseudananas macrodontes have been compared. the enzymes showed optimum ph ranges near neutrality and were inhibited by e-64 and other cysteine peptidase inhibitors. molecular masses were 23459 and 23703 kda, the isoelectric points were 6.1 and 5.9, and the km values were 13.4 and 8.9 microm (bz-phe-val-arg-amc) for macrodontain i and ii, respectively. n-alpha-cbz-l-amino acid p-nitrophenyl esters were teste ... | 2001 | 11517945 |
bromelain: biochemistry, pharmacology and medical use. | bromelain is a crude extract from the pineapple that contains, among other components, various closely related proteinases, demonstrating, in vitro and in vivo, antiedematous, antiinflammatory, antithrombotic and fibrinolytic activities. the active factors involved are biochemically characterized only in part. due to its efficacy after oral administration, its safety and lack of undesired side effects, bromelain has earned growing acceptance and compliance among patients as a phytotherapeutical ... | 2001 | 11577981 |
ingestion of insoluble dietary fibre increased zinc and iron absorption and restored growth rate and zinc absorption suppressed by dietary phytate in rats. | we examined the effects of ingestion of five types of insoluble fibre on growth and zn absorption in rats fed a marginally zn-deficient diet (6.75 mg (0.103 mmol) zn/kg diet) with or without added sodium phytate (12.6 mmol/kg diet). the types of insoluble fibre tested were corn husks, watermelon skin, yam-bean root (pachyrhizus erosus) and pineapple core, and cellulose was used as a control (100 g/kg diet). body-weight gain in the cellulose groups was suppressed by 57 % by feeding phytate. body- ... | 2001 | 11591231 |
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 |
water quality of a reservoir as affected by agriculture in the east of thailand: a preliminary study. | a preliminary study on the water quality of a reservoir, affected by agriculture, in the east of thailand was conducted during 1996-1997. monitoring water quality of a reservoir is important because the sloping lands surrounding the reservoirs are mainly utilized for cultivating cash crops (pineapple, cassava, etc). a lot of fertilizers and agrochemicals were applied to soil and crops which can polluted the water. the results from the preliminary studied will be applied for the monitoring of the ... | 2001 | 11724479 |
characterization of yeast strains for wine production: effect of fermentation variables on quality of wine produced. | sixteen yeast strains isolated from grapefruit (citrus paradis), orange (citrus sinensis) and pineapple (ananas comosus) were characterized using standard microbiological procedures. the species were identified as saccharomyces uvarum, s. cerevisiae, s. carlbergensis, and s. ellipsoideus. their abilities for wine production were tested by using sugar and ethanol tolerance tests. the best biochemically active strain, s. ellipsoideus, was used along with commercially available baker's yeast (s. ce ... | 2001 | 11732717 |
antibody binding to venom carbohydrates is a frequent cause for double positivity to honeybee and yellow jacket venom in patients with stinging-insect allergy. | up to 50% of patients with stinging-insect allergy have double-positive rast results to honeybee and yellow jacket (yj) venom. true double sensitization and crossreactivity through venom hyaluronidases are considered main reasons for this multiple reactivity. | 2001 | 11742287 |