Publications
Title | Abstract | Year(sorted descending) Filter | PMID Filter |
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migration and enrichment of arsenic in the rock-soil-crop plant system in areas covered with black shale, korea. | the okchon black shale, which is part of the guryongsan formation or the changri formation of cambro-ordovician age in korea provides a typical example of natural geological materials enriched with potentially toxic elements such as u, v, mo, as, se, cd, and zn. in this study, the dukpyung and the chubu areas were selected to investigate the migration and enrichment of as and other toxic elements in soils and crop plants in areas covered with black shale. rock and soil samples digested in 4-acid ... | 2003 | 12806106 |
modifying children's food preferences: the effects of exposure and reward on acceptance of an unfamiliar vegetable. | the aim of this study was to evaluate two interventions (one reward-based and one exposure-based) for increasing children's acceptance of an unfamiliar vegetable compared with a no-treatment control. it was predicted that the exposure condition would increase liking for, and consumption of, the vegetable relative to either the reward or control group. | 2003 | 12571670 |
[rapid analysis of aflatoxins in raw peanuts, corn, buckwheat and red pepper by a new mini-column cleanup and hplc using post-column photochemical derivatization system]. | a rapid and clean method for the analysis of aflatoxins (afs) was developed by using a new column and post-column photochemical derivatization hplc with fluorescence detection. the new cleanup column consisted of magnesia and basic alumina poured on the top of a commercial multi-functional mini-column. it was extremely effective for the cleanup of afs from raw peanut, corn, buckwheat and red pepper. fluorescent substances, which interfered with the analysis of afs from corn, were completely abso ... | 2002 | 12436711 |
a modified hplc method for the determination of ochratoxin a by fluorescence detection. | a high-performance liquid chromatographic method (hplc) with fluorescent detector is described for the determination of ochratoxin a (ota). a mobile phase consisting of acetonitrile:water:acetic acid (99:99:2, v/v/v) was used for the resolution of the compound on a c(18) hypersil column. the retention time for ota and diflunisal which was used as an internal standard (is) were 11.7 and 12.8 min, respectively. the method is selective, reliable, reproducable with relative standard deviation (rsd) ... | 2002 | 12378560 |
field and laboratory selection of frankliniella occidentalis (pergande) for resistance to insecticides. | response of western flower thrips, frankliniella occidentalis (pergande), to selection for resistance to insecticides commonly used to control this pest in murcia (south-east spain) was studied under field and laboratory conditions. in the field, plots within sweet pepper crops in commercial and experimental greenhouses were treated under different selection strategies: insecticide rotation versus formetanate reiteration, formetanate reiteration versus acrinathrin reiteration, and formetanate re ... | 2002 | 12233182 |
arsenic, sb and bi contamination of soils, plants, waters and sediments in the vicinity of the dalsung cu-w mine in korea. | the objective of this study is to investigate environmental contamination derived from metalliferous mining activities. in the study area, the dalsung cu-w mine, soils, various crop plants, stream waters, sediments and particulates were sampled in and around the mine and analyzed for as, sb and bi by icp-aes with a hydride generator. in addition, soil ph, cation exchange capacity, loss-on-ignition and soil texture were also measured. concentrations of as, sb and bi in surface soils sampled in th ... | 2002 | 12186294 |
on-line hplc detection of tocopherols and other antioxidants through the formation of a phosphomolybdenum complex. | an on-line method to detect and quantify antioxidant species in complex extracts has been developed as a combination of conventional hplc separation and a postcolumn reaction with phosphomolybdenum reagent at acidic ph. sample analytes were chromatographed by hplc, and the postcolumn formation of a phosphate/mo(v) complex was detected at 598 nm with an on-line absorbance detector. an optimized instrumental system was set up using pure alpha-tocopherol, and it was successfully tested with complex ... | 2002 | 12033800 |
the treatment of functional dyspepsia with red pepper. | : to decrease the intensity of dyspeptic symptoms by impairing the visceral nociceptive c-type fibres with capsaicin, contained in red pepper powder. | 2002 | 12030948 |
sensitivity to methacholine and capsaicin in patients with unclear respiratory symptoms. | capsaicin, the pungent ingredient in red pepper, is known to stimulate coughing via the sensory nervous system. earlier studies showed that patients with airway symptoms induced by chemicals and strong scents cough more after inhalation of capsaicin than healthy control subjects and this has been interpreted as a hyperreactivity of airway sensory nerves. our aim was to study airway sensitivity to inhaled capsaicin and the occurrence of airway symptoms induced by strong scents in patients who und ... | 2002 | 12028115 |
[effect of fertilization on the qualities of sweet pepper in greenhouse culture]. | in order to study the effect of fertilization on the qualities of sweet pepper(capsicum annul l) cultured in greenhouse, the experiment was carried out by drop irrigation. the results showed that the most sensitive organ of sweet pepper for nitrate was lateral branch, in which the nitrate content was highest. the nitrate content in leaf was lower than that in lateral branch, and in fruit, the nitrate content was the lowest. high fertilization of n, p and k had no negative influence on content of ... | 2002 | 11962323 |
red pepper and functional dyspepsia. | 2002 | 11907302 | |
occurrence of zearalenone in korean barley and corn foods. | the presence of zearalenone (zen) in korean foods such as barley, barley-based foods, corn, corn-based foods, fruits and vegetables was investigated by direct competitive enzyme-linked immunosorbent assay (dcelisa) and the liquid chromatography (lc) method. a total of 164 samples was collected from seoul, korea, in 1998 and 1999 including 30 barley, 32 barley-based foods, 18 corn, 47 corn-based foods, 19 dried red pepper, nine dried jujube, and nine dried persimmon. average recoveries of zen fro ... | 2002 | 11820497 |
host-range characterization of two pratylenchus coffeae isolates from brazil. | two isolates of pratylenchus coffeae were collected from coffee roots (in marília, são paulo state, brazil) and aglaonema (in rio de janeiro city, rio de janeiro state, brazil) and maintained in the laboratory on alfalfa callus. twenty-four plants were tested in the greenhouse to characterize the host preference of these isolates. the host ranges of the isolates differed from each other and, interestingly, coffee, banana, and citrus were not among the better hosts of either isolate. rather, sorg ... | 2002 | 19265921 |
attraction of phytoseiulus persimilis (acari: phytoseiidae) towards volatiles from various tetranychus urticae-infested plant species. | plants infested with the spider mite tetranychus urticae koch, may indirectly defend themselves by releasing volatiles that attract the predatory mite phytoseiulus persimilis athias-henriot. several plants from different plant families that varied in the level of spider mite acceptance were tested in an olfactometer. the predatory mites were significantly attracted to the spider mite-infested leaves of all test plant species. no differences in attractiveness of the infested plant leaves were fou ... | 2002 | 17598305 |
constitutive expression of hrap gene in transgenic tobacco plant enhances resistance against virulent bacterial pathogens by induction of a hypersensitive response. | hypersensitive response-assisting protein (hrap) has been previously reported as an amphipathic plant protein isolated from sweet pepper that intensifies the harpin(pss)-mediated hypersensitive response (hr). the hrap gene has no appreciable similarity to any other known sequences, and its activity can be rapidly induced by incompatible pathogen infection. to assess the function of the hrap gene in plant disease resistance, the camv 35s promoter was used to express sweet pepper hrap in transgeni ... | 2002 | 12182333 |
biosynthesis of terpenes: studies on 1-hydroxy-2-methyl-2-(e)-butenyl 4-diphosphate reductase. | earlier in vivo studies showed the involvement of isph protein in the conversion of 1-hydroxy-2-methyl-2-(e)-butenyl 4-diphosphate into isopentenyl diphosphate (ipp) and dimethylallyl diphosphate (dmapp). we have demonstrated now that cell extract of an escherichia coli strain engineered for hyperexpression of the isph (lytb) gene catalyzes the in vitro conversion of 1-hydroxy-2-methyl-2-(e)-butenyl 4-diphosphate into ipp and dmapp. the reaction requires nadh, fad, divalent cations (preferably c ... | 2002 | 12198182 |
suppression of phorbol ester-induced nf-kappab activation by capsaicin in cultured human promyelocytic leukemia cells. | capsaicin, a major pungent constituent of red pepper (capsicum annuum l.) possesses a vast variety of pharmacologic and physiologic activities. despite its irritant properties, the compound exerts anti-inflammatory and anti-nociceptive effects. previous studies from this laboratory revealed that capsaicin, when topically applied onto dorsal skin of female icr mice, strongly attenuated activation of nf-kappab and ap-1 induced by the typical tumor promoter, 12-o-tetradecanoylphorbol-13-acetate (tp ... | 2002 | 12214859 |
insecticide resistance in field populations of frankliniella occidentalis (pergande) in murcia (south-east spain). | thirty-nine field populations of frankliniella occidentalis (pergande) were collected from different crops (sweet pepper, tomato, lettuce, artichoke, melon, cucumber, carnation, broad bean, peach and plum) in murcia (south-east spain). all populations were reared separately in the laboratory to obtain enough individuals for bioassays. female thrips were bioassayed, using a standard topical application method, against methiocarb, methamidophos, acrinathrin, endosulfan, deltamethrin and formetanat ... | 2002 | 12233190 |
mechanism of potent antiperoxidative effect of capsaicin. | the effect of a pungent ingredient of red pepper, capsaicin, on lipid peroxidation of rat liver mitochondria (rlm) induced by adp/fe(2+) was studied. capsaicin inhibited the lipid peroxidation significantly, being more effective than the well-known antioxidant alpha-tocopherol. capsaicin was also found to scavenge 1,1'-diphenyl-2-picrylhydrazyl (dpph) radicals both in solution and in membranes, especially the latter. capsaicin was found to scavenge radicals both at/near the membrane surface and ... | 2002 | 12383946 |
antioxidant and antiproliferative activities of common vegetables. | epidemiological studies have shown that consumption of fruits and vegetables is associated with reduced risk of chronic diseases. increased consumption of fruits and vegetables containing high levels of phytochemicals has been recommended to prevent chronic diseases related to oxidative stress in the human body. in this study, 10 common vegetables were selected on the basis of consumption per capita data in the united states. a more complete profile of phenolic distributions, including both free ... | 2002 | 12405796 |
genetic diversity underlying capsaicin intake in the mishima battery of mouse strains. | capsaicin is the active substance responsible for the pungent sensation produced by red pepper. in order to approach the underlying genetic mechanism for preference of red pepper, we conducted a 12-h, 1-bottle intake test of capsaicin solution using both male and female animals from the mishima battery of mouse strains: 10 wild-derived inbred strains (pgn2, bfm/2, hmi, cast/ei, njl, blg2, chd, swn, kjr, msm), 1 strain derived from the so-called fancy mouse (jf1), and 3 widely used laboratory str ... | 2002 | 11827737 |
traditional production, consumption and storage of kunu--a non alcoholic cereal beverage. | a survey of the production, consumption and storage of kunu was carried out. some of the information included consumption rate, processing techniques and equipment, producer's status and grains used. about 73% consume kunu daily, 26% occasionally; 1% know it is produced but may or may not be consuming it. millet (pennisetum typhoideum), sorghum (sorghum vulgare), maize (zea mays), rice (oryza sativa) and acha (digitalis exilis) were used in its production in decreasing order of preference. the g ... | 2002 | 11855622 |
studies on the antimicrobial mechanisms of capsaicin using yeast dna microarray. | capsaicin is a pungent element in a variety of red peppers that are widely used as food additives and considered to be an antimicrobial factor. for our tests, we used yeast dna micro-array methods to understand the mechanisms of inhibitory effects of capsaicin. the capsaicin treatment significantly induced 39 genes from approximately 6,000 genes. these induced genes were classified as multi-drug resistance transporter genes, membrane biosynthesis genes, genes encoding stress proteins, and unchar ... | 2002 | 12005045 |
ground red peppers: capsaicinoids content, scoville scores, and discrimination by an electronic nose. | high-pressure liquid chromatography (hplc) was used to determine the capsaicin, dihydrocapsaicin, and total capsaicinoids levels of different ground red pepper samples obtained from local retail markets in izmir, turkey. scoville scores were determined using sensory tests. an electronic nose (en) was used to discriminate ground red pepper samples by headspace volatiles. en data were analyzed using discriminant function analysis (dfa). an overall correct classification rate of pepper varieties by ... | 2002 | 12009995 |
nitrate pollution in groundwater and strategies to reduce pollution. | the input-intensive rainfed tropical ecosystem, where wet season (ws) rice (oriza sativa l.)-dry season (ds) diversified high-value upland crops like vegetables predominate, has resulted in a problem of a large leakage of n into the environment, thereby polluting the water. excessive use of n fertilizer in high-value crops grown in ds is economically motivated. out of twenty water sources evaluated in a watershed with a total area of 265 ha located in magnuang, ilocos norte, philippines, twelve ... | 2002 | 12079116 |
immunosuppressive activity of capsaicinoids: capsiate derived from sweet peppers inhibits nf-kappab activation and is a potent antiinflammatory compound in vivo. | capsiate and its dihydroderivatives are the major capsaicinoids of sweet pepper. these new capsaicinoids do not activate the vanilloid receptor type 1 (vr1) but they share with capsaicin (cps)some biological activities mediated in a vr1-independent fashion. in this study we show that cps and nordihydrocapsiate (cpt) inhibit early and late events in t cell activation, including cd69, cd25 and icam-1 cell surface expression, progression to the s phase of the cell cycle and proliferation in respons ... | 2002 | 12115659 |
street foods in accra, ghana: how safe are they? | to investigate the microbial quality of foods sold on streets of accra and factors predisposing to their contamination. | 2002 | 12163918 |
inheritance of resistance to meloidogyne incognita race 2 in the hot pepper cultivar carolina cayenne (capsicum annuum l.). | root-knot nematodes of the genus meloidogyne are important pathogens affecting vegetable crop production in brazil and worldwide. the pepper species capsicum annuum includes both hot and sweet peppers; very little emphasis has been placed on breeding sweet peppers for nematode resistance. we report on the inheritance of resistance to meloidogyne incognita (kofoid & white) chitwood race 2 in the hot pepper cultivar carolina cayenne. the hot pepper cv. carolina cayenne was used as seed parent and ... | 2002 | 14963835 |
analysis of antioxidant activities of common vegetables employing oxygen radical absorbance capacity (orac) and ferric reducing antioxidant power (frap) assays: a comparative study. | a total of 927 freeze-dried vegetable samples, including 111 white cabbages, 59 carrots, 51 snap beans, 57 cauliflower, 33 white onions, 48 purple onions, 130 broccoli, 169 tomatoes, 25 beets, 88 peas, 88 spinach, 18 red peppers, and 50 green peppers, were analyzed using the oxygen radical absorption capacity (orac) and ferric reducing antioxidant capacity (frap) methods. the data show that the orac and frap values of vegetable are not only dependent on species, but also highly dependent on geog ... | 2002 | 12009973 |
dietary factors and gastric cancer in korea: a case-control study. | to assess gastric cancer (gc) risk in relation to dietary intake in korea, a case-control study was performed. trained dietitians interviewed 136 patients diagnosed with gc, and the same number of controls were selected by matching sex, age and hospital. a significant decrease in gc risk was observed with increased intake of baiechu kimchi (prepared with salted chinese cabbage and red pepper, etc.), baiechu kimchi-stew, garlic, mushroom and soybean milk. on the contrary, a significant increase i ... | 2002 | 11802218 |
mycomon-monitoring project of toxigenic fungi in food in years 1999 - 2001. | an occurrence of the toxigenic fungi producing aflatoxins and ochratoxin a in food was investigated in the study ("mycomon") in years 1999-2001. twenty five commodities were purchased from retail in twelve collection places in the czech republic (300 food samples together). the presence of potentially toxigenic fungiaspergillus flavus was observed in 28% of the sampled food (black pepper, black tea, caraway seeds, fine flour, fruit tea, oat flakes) in the year 1999, in 17% of the sampled food (b ... | 2002 | 23606161 |
effect of ascorbic acid on the stability of beta-carotene and capsanthin in paprika (capsicum annuum) powder. | the effect of ascorbic acid, light, and storage on the stability of the pigments beta-carotene and capsanthin in red pepper (capsicum annuum) powder has been elucidated by determining the amount of pigment in samples treated by various concentrations of ascorbic acid. determination of pigment concentration has been performed after different storage times using high-performance liquid chromatography. the dependence of the concentration of pigments on the concentration of ascorbic acid, presence o ... | 2002 | 12428443 |
quantitation of vitamin c content in herbal juice using direct titration. | vitamin c content in fresh and freeze-dried herbal juice, such as guava (psidium guajava linn.) emblic myrobolan (phyllanthus embica linn.), lemon (citrus aurantifollia swing), sweet pepper (capsicum annuum linn.) garcinia schomburgkiana pierre and passion fruit (passiflora laurifoia linn.) was determined by direct titration with iodine. the method showed excellent linearity (r2>0.99) over the concentration ranges tested (100-500% of the amount found in the juice samples), good precision (r.s.d. ... | 2002 | 12039626 |
alpha-tocopherol content in 62 edible tropical plants. | vitamin e was determined by the high-performance liquid chromatography (hplc) method. all the plants tested showed differences in their alpha-tocopherol content and the differences were significant (p < 0.05). the highest alpha-tocopherol content was in sauropus androgynus leaves (426.8 mg/kg edible portion), followed by citrus hystrix leaves (398.3 mg/kg), calamus scipronum (193.8 mg/kg), starfruit leaves averrhoa belimbi (168.3 mg/kg), red pepper capsicum annum (155.4 mg/kg), local celery apiu ... | 2001 | 11410015 |
occurrence of the toxigenic fungi (producers of aflatoxins and ochratoxin a) in foodstuffs in the czech republic 1999-2000. | the occurrence of toxigenic fungi producing aflatoxins and ochratoxin a in foodstuffs was studied in the czech republic. twenty five commodities were collected at twelve collection places in the czech republic (300 food samples). the presence of potentially toxigenicaspergillus flavus was observed in 28% of the sampled foods (black pepper, caraway seeds, fruit tea, black tea, oat flakes, fine flour, rolled oat flakes and semolina) in the year 1999, and in 25% of the sampled foods (black pepper, ... | 2001 | 23605869 |
rapid spectrophotometric determination of red and yellow isochromic carotenoid fractions in paprika and red pepper oleoresins. | a rapid method has been developed for the determination of the red (r) and yellow (y) isochromic carotenoid pigments fractions in paprika and oleoresins, based on uv-visible spectrophotometric measurement at two characteristic wavelengths and application of the lambert-beer law for multicomponent mixtures. the wavelengths 472 and 508 nm were selected as the most appropriate for simultaneous quantification of these fractions in the acetone extract of pigments. experimental determination of the sp ... | 2001 | 11513632 |
capsaicin-induced apoptosis in sk-hep-1 hepatocarcinoma cells involves bcl-2 downregulation and caspase-3 activation. | hepatocellular carcinoma is one of the most lethal malignancies and there is no effective preventive measure in this highly malignant disease to date. in the present study, we investigated the chemopreventive potential of capsaicin (8-methyl-n- vanillyl-6-nonenamide), the principal pungent ingredient found in hot red pepper, in sk-hep-1 hepatocellular carcinoma cells. treatment of capsaicin inhibited growth of sk-hep-1 cells in a concentration-dependent manner while 4-methoxy capsaicin (met-caps ... | 2001 | 11275362 |
transgenic rice plants expressing the ferredoxin-like protein (ap1) from sweet pepper show enhanced resistance to xanthomonas oryzae pv. oryzae. | we used particle bombardment to cotransform mature seed-derived rice callus (oryza sativa l., ssp. japonica, cv. eyi 105) with plasmids containing the linked marker genes gusa and hpt, and the ap1 gene encoding an amphipathic protein previously shown to delay the hypersensitive response induced in non-host plants by the pathogen pseudomonas syringae pv. syringae (pss). thirty-two independent lines of transgenic rice plants were regenerated, and 27 of these lines carried all three transgenes as s ... | 2001 | 11297801 |
biological activity of a fruit vegetable, "anastasia green", a species of sweet pepper. | russian green sweet pepper (anastasia green) was successively extracted with hexane, acetone, methanol and 70% methanol and the extracts were further separated into a total of twenty fractions by silica gel or ods column chromatographies. the biological activities of these extracts and fractions were compared. the extracts and fractions showed higher cytotoxic activity against two human oral tumor cell lines than against normal human gingival fibroblasts, suggesting their tumor-specific action. ... | 2001 | 11695243 |
botrydial is produced in plant tissues infected by botrytis cinerea. | the fungal metabolite botrydial was detected for the first time in ripe fruits of sweet pepper (capsicum annuum) wound-inoculated with conidial suspensions of botrytis cinerea and also in leaves of phaseolus vulgaris and arabidopsis thaliana inoculated without wounding. this phytotoxin was produced in soft rot regions of the infection. in c. annuum, the most aggressive isolate produced the highest botrydial concentrations in planta. the levels of botrydial produced by this isolate did not correl ... | 2001 | 11397435 |
effect of red peppers (capsicum frutescens) intake during gestation on thermonociceptive response of rat offspring. | oral administration of aqueous red pepper (capsicum frutescens, cf) solution and low capsaicin (8-methyl-n-vanillyl-6-nonenamide) doses during gestation produces an increase in the latency of the thermonociceptive escape response of rat offspring. the present work shows that different amounts of cf (10%, 25% and 50%) incorporated to normal food of gestating rats modify in a dose-dependent manner the flexion reflex latency (r), as well as the latency of appearance of antialgesic behaviours expres ... | 2001 | 11165333 |
capsaicin potentiates 1,25-dihydoxyvitamin d3- and all-trans retinoic acid-induced differentiation of human promyelocytic leukemia hl-60 cells. | human promyelocytic leukemia hl-60 cells are differentiated into monocytic or granulocytic lineage when treated with 1,25-dihydroxyvitamin d3 [1,25-(oh)2d3] or all-trans retinoic acid, respectively. in this study, the effect of capsaicin, an active component of the red pepper of the genus capsocum, on cell differentiation was investigated in a hl-60 cell culture system. treatment of hl-60 cells with 5-30 microg/ml capsaicin for 72 h inhibited cell proliferation and induced a small increase in ce ... | 2001 | 11408028 |
failure of capsaicin-containing red pepper sauce suspension to induce esophageal motility response in patients with barrett's esophagus. | the physiologic importance of afferent sensory pathways in the esophageal motor functions has been recently recognised. capsaicin-sensitive sensory afferents were shown to play a role in the maintenance of mucosal integrity of the gi tract, and regulation of human esophageal motility. the aim of this study was to investigate the effect of topical application of capsaicin-containing red pepper sauce (tabasco, 25%v/v, ph:7.0) suspension on the phasic activity of the human esophagus of healthy volu ... | 2001 | 11595437 |
enzymatic synthesis of vanillin. | due to increasing interest in natural vanillin, two enzymatic routes for the synthesis of vanillin were developed. the flavoprotein vanillyl alcohol oxidase (vao) acts on a wide range of phenolic compounds and converts both creosol and vanillylamine to vanillin with high yield. the vao-mediated conversion of creosol proceeds via a two-step process in which the initially formed vanillyl alcohol is further oxidized to vanillin. catalysis is limited by the formation of an abortive complex between e ... | 2001 | 11409992 |
ch-19 sweet, a non-pungent cultivar of red pepper, increased body temperature and oxygen consumption in humans. | we investigated the effect of ch-19 sweet, a non-pungent cultivar of red pepper, on body temperature and oxygen consumption in humans. ch-19 sweet was given to 11 healthy volunteers, and core body temperature, body surface temperature and oxygen consumption were measured. the control group ingested california-wandar, which contained neither capsaicin nor capsiate. the core body temperature in the ch-19 sweet group was significantly higher than that in the control group (p<0.01). the forehead tem ... | 2001 | 11676017 |
determination of aflatoxins b1, b2, g1 and g2 in spices using a multifunctional column clean-up. | a rapid and simple method using a multifunctional column, which contains lipophilic and charged active sites, was developed to analyse aflatoxins b1, b2, g1 and g2 in various spices, such as red pepper and nutmeg. after extraction by acetonitrile:water (9:1) and clean-up using multisep #228 column, the aflatoxins and aflatoxin-tfa derivatives are determined using lc with fluorescence detection. recoveries of each aflatoxin b1, b2, g1 and g2 spiked to red pepper, white pepper, black pepper, nutme ... | 2001 | 11695861 |
ch-19 sweet, nonpungent cultivar of red pepper, increased body temperature in mice with vanilloid receptors stimulation by capsiate. | we investigated the effect of ch-19 sweet, a nonpungent cultivar of red pepper, and capsiate, a nonpungent capsaicin analog found in ch-19 sweet on body temperature in mice. the body temperature was recorded from conscious and unrestrained mice by use of a telemetry system. the body temperature in the mice administered ch-19 sweet was higher than in the mice administered california-wandar, which contains no capsiate or capsaicin. the body temperature in the mice administered capsiate was higher ... | 2001 | 11767210 |
a comparison of sole carbon source utilization patterns and phospholipid fatty acid profiles to detect changes in the root microflora of hydroponically grown crops. | sole carbon source utilization (scsu) patterns and phospholipid fatty acid (plfa) profiles were compared with respect to their potential to characterize root-inhabiting microbial communities of hydroponically grown crops. sweet pepper (capsicum annum cv. evident), lettuce (lactuca sativa cv. grand rapids), and four different cultivars of tomato (lycopersicon esculentum cvs. gitana, armada, aromata, and elin) were grown in 1-l black plastic beakers placed in a cultivation chamber with artificial ... | 2001 | 11358169 |
treatment of prurigo nodularis with topical capsaicin. | prurigo nodularis is an eruption of lichenified or excoriated nodules caused by intractable pruritus that is difficult to treat. therefore the antipruritic efficacy of capsaicin seemed to be of particular interest because this alkaloid, extractable from red pepper, interferes with the perception of pruritus and pain by depletion of neuropeptides in small sensory cutaneous nerves. | 2001 | 11209117 |
growth and aflatoxin production ofaspergillus flavus on some spices marketed in turkey. | growth and aflatoxin production byaspergillus flavus (mam-268 c17, tns=98) on autoclaved coconut, black pepper, crushed red pepper, red pepper powder were studied. coconut were found to be a better substrate for fungal growth, as well as aflatoxin production. red pepper powder could be considered as a poor substrate for fungal growth. the amount of aflatoxin found in crushed red pepper under laboratory conditions is much less compared with coconut, black pepper and red pepper powder. | 2001 | 23605610 |
combined effects of red pepper and caffeine consumption on 24 h energy balance in subjects given free access to foods. | the effects of red pepper and caffeine ingestion on energy and macronutrient balances were examined in eight caucasian male subjects. all subjects participated in two randomly assigned conditions: control and experimental (red pepper and caffeine). after ingesting a standardized breakfast, subjects ate three meals ad libitum (lunch, dinner and breakfast) and snacks which were served approximately 2 h after the lunch and dinner over a 24 h period. two appetizers with or without 3 g red pepper) we ... | 2001 | 11242488 |
effects of capsaicin-containing yellow curry sauce on sympathetic nervous system activity and diet-induced thermogenesis in lean and obese young women. | the present study was designed to investigate the effect of capsaicin, a pungent component of red pepper, on the sympathetic nervous system (sns) activity and energy metabolism in 16 age- and height-matched lean and obese young women. the sympatho-vagal activities were assessed by means of spectral analysis of heart rate variability (hrv) during the resting condition and after the meal (2,016 kj) with capsaicin (3 mg). energy expenditure was also measured under the two conditions. there was no s ... | 2000 | 11227803 |
[topical administration of capsaicin in dermatology for treatment of itching and pain]. | treatment of pruritus as observed in many dermatological and internal diseases may be very often disappointing. there are many reports describing the topical use of capsaicin, the pungent agent in red pepper. long term administration of capsaicin depletes neuropeptides in unmyelinated, polymodal c-type and small myelinated a delta-type cutaneous nerves that conduct pruritus and pain. | 2000 | 10789077 |
estimation of precision and efficiency mass transfer steps for the determination of pesticides in vegetables aiming at the expression of results with reliable uncertainty. | a 'bottom-up' approach for the expression of results obtained from analytical methods that include analytical steps with recovery inherently different from 100% [mass transfer steps (mts): extraction, evaporation, clean-up procedures, digestion, etc.] is presented. the estimation of the combination of all mts uncertainty involves the comparison of the experimental dispersion of replicated analyses of spiked samples with the estimation of the uncertainty obtained for the combination of all uncert ... | 2000 | 11002928 |
[fermentation of the pimento used for stuffing green olives]. | 2000 | 5083210 | |
dna repair effect of traditional sweet pepper fushimi-togarashi: seen in suppression of uv-induced cyclobutane pyrimidine dimer in human fibroblast. | the aqueous fraction of fushimi sweet pepper increased the repair effect of the solvent control against uv-induced cyclobutane pyrimidine dimers in human fibroblast to 150%, but ordinary sweet pepper did not have a statistically significant effect. when fushimi sweet pepper was boiled, the activity of the aqueous fraction was elevated to 209% of the control (p<0.05), while that of the grilled state was decreased to 125% of the control. the repair activity of a dialyzate (mw<12,000) of the aqueou ... | 2000 | 11210119 |
influence of intragastric perfusion of aqueous spice extracts on acid secretion in anesthetized albino rats. | the effect of spices on gastric acid secretion is variable. their mechanism of action is also not well established. | 2000 | 10812814 |
cdna cloning and characterization of a plant protein that may be associated with the harpinpss-mediated hypersensitive response. | hypersensitive response-assisting protein (hrap) is a novel plant protein that can intensify the harpinpss-mediated hypersensitive response (hr) in harpinpss-insensitive plants, such as the vegetative stage of sweet pepper. in this report, we identified a hrap cdna clone from sweet pepper (capsicum annuum cv. ecw). the sequence of this cdna clone showed no appreciable similarity to any other known sequences. however, it contained three positively charged regions, a typical signal peptide and a c ... | 2000 | 11052195 |
enzymatic hydrolysis of carotenoid fatty acid esters of red pepper (capsicum annuum l.) by a lipase from candida rugosa. | analyses of red pepper extracts which had been pretreated with lipase type vii (ec 3.1.1.3.) from candida rugosa showed for the first time pepper carotenoid esters to be substrates of this enzyme. however, the extent of enzymatic hydrolysis depends on the respective carotenoid and was not quantitative compared to chemical saponification. after enzymatic cleavage, 67-89% of total capsanthin, 61-65% of total zeaxanthin, 70-81% of total beta-cryptoxanthin and 70-86% of total violaxanthin were detec ... | 2000 | 11204204 |
inhibitory effects of curcumin and capsaicin on phorbol ester-induced activation of eukaryotic transcription factors, nf-kappab and ap-1. | recently, considerable attention has been focused on identifying dietary and medicinal phytochemicals that can inhibit, retard or reverse the multi-stage carcinogenesis. spices and herbs contain phenolic substances with potent antioxidative and chemopreventive properties. curcumin, a yellow colouring agent from turmeric and capsaicin, a pungent principle of red pepper exhibit profound anticarcinogenic and antimutagenic activities. two well-defined eukaryotic transcription factors, nuclear factor ... | 2000 | 11216470 |
[mycotoxins in spices]. | since antiquity, spices have been used for flavoring foods and beverages and for medication. they play an important role in the national economy of several of the producing, exporting and importing countries. tropical climatic conditions under which spices are grown offer a favorable environment for the fungal and mycotoxin contamination. this review summarized information from 44 reports on the occurrence of mycotoxins (aflatoxins, ochratoxins zearalenone, fumonisins, trichothecenes) and their ... | 2000 | 11452374 |
carotenoid biosynthesis changes in five red pepper (capsicum annuum l.) cultivars during ripening. cultivar selection for breeding. | changes in the biosynthesis of individual carotenoid pigments have been investigated during fruit ripening of five cultivars of red pepper (capsicum annuum l.): mana, numex, belrubi, delfin, and negral (a chlorophyll-retaining mutant when ripe). the study was carried out throughout the ripening process, and with special emphasis on the ripe stage, to discover possible differences between cultivars and to characterize these by their carotenoid pattern and content for selecting the best varieties ... | 2000 | 10995282 |
formation of volatile compounds during heating of spice paprika (capsicum annuum) powder. | spice paprika (red pepper; capsicum annuum) is the most cultivated spice worldwide and is used mainly for its color and pungency. however, current research is also focusing on the flavor as an important parameter. this paper deals with the kinetics of the formation of those volatiles that indicate a decrease in spice paprika quality due to maillard reaction, hydrolytic reactions, and oxidative degradation reactions of lipids such as fatty acids and carotenoids. spice paprika volatiles were quant ... | 2000 | 10888567 |
isolation and characterization of mitochondrial manganese superoxide dismutase (mnsod) from capsicum annuum l. | a cdna clone for a mitochondrial manganese superoxide dismutase (mnsod) was isolated and characterized from red pepper (capsicum annuum l.). the clone consisted of 941 bp containing one open reading frame (orf) of 687 bp, 34 bp/220 bp of 5'/3'-untranslated region. amino acid sequence of the orf showed the highest homology (86%) with that of nicotiana plumbaginifolia. it encodes for a polypeptide of 228 amino acids with a molecular mass of 25.5 kda and a pi value of 8.39. genomic southern hybridi ... | 1999 | 10672929 |
change in the carotenoid and antioxidant content of spice red pepper (paprika) as a function of ripening and some technological factors. | a study was conducted to investigate the change in quality attributes of red pepper (paprika) (capsicum annuum l. var. km-622) as a function of ripening and some technological factors. of quality attributes, carotenoids and bioantioxidants (ascorbic acid and tocopherols) have been studied. it was found that the dynamics of fruit ripening with regard to carotenoids and bioantioxidants was influenced to a considerable extent by weather conditions of the production season. a rainy and cool season y ... | 1999 | 10563856 |
9-oxooctadeca-10,12-dienoic acids as acetyl-coa carboxylase inhibitors from red pepper (capsicum annuum l.). | a methanol extract of red pepper showed potent acetyl-coa carboxylase inhibitory activity. the active principles were isolated and identified as (e, e)- and (e, z)-9-oxooctadeca-10,12-dienoic acids by instrumental analyses. the ic50 values of the compounds were 1.4×10(-6) and 1.5×10(-6) m, respectively, their activity being nearly sixty-times higher than that of the common fatty acids themselves. a comparative study of the structure-activity relationship among their related compounds showed that ... | 1999 | 27393256 |
determinants of salt use in cooked meals in the netherlands: attitudes and practices of food preparers. | to assess current habits of using salt and other seasonings in food preparation, and to investigate the psychosocial determinants of salt use. in addition we examined differences in salt consumption and psychosocial determinants with respect to stages of change and socio-economic classes. | 1999 | 10369495 |
effects of roasting on pyrazine contents and oxidative stability of red pepper seed oil prior to its extraction. | red pepper seeds were roasted with constant stirring for 6, 9, 10, and 12 min at 210 degrees c, and oils were extracted from the roasted red pepper seeds using an expeller. the iodine values and fatty acid compositions of red pepper seed oils did not change with roasting time. the fatty acid composition of the oil obtained from the red pepper seeds roasted for 6 min was 0.24% myristic acid, 13. 42% palmitic acid, 0.33% palmitoleic acid, 2.07% stearic acid, 10. 18% oleic acid, 73.89% linoleic aci ... | 1999 | 10564041 |
modulation of intestinal functions by food substances. | the small intestinal epithelium plays a crucial role in the digestion/modification of food components, absorption of nutrients and recognition of food-derived signals. it also acts as a barrier against unfavourable materials in food. these intestinal functions may be influenced by food substances. in this paper, the effects of various food substances on the intestinal functions, particularly the absorption functions, are discussed. a new assay method, using a monolayer culture system of human in ... | 1999 | 10399347 |
[effect of green vegetable on digestive tract absorption of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in rats]. | the effect green vegetable on fecal excretion of polychlorinated dibenzo-p-dioxin (pcdd) congeners and polychlorinated dibenzofuran (pcdf) congeners was examined in male rats. the rats were administered 10% vegetable diets or a basal diet containing 0.2 ml of the causal rice-bran oil of yusho that had occurred in the southwest part of japan in 1968 and kept on the same diet for five days. the fecal excretion of 2,3,7,8-t4cdd and 2,3,4,7,8-p5cdf in the group fed with komatsuna, mitsuba, spinach a ... | 1999 | 10396873 |
capsaicin induces cystatin s-like substances in submandibular saliva of the rat. | irritating dietary substances such as tannin and papain have been reported to alter the morphology of salivary glands and their secretions. such alterations can be one line of protection from toxic or irritating substances in food. we investigated the effects of dietary capsaicin (a pungent ingredient of hot red pepper) on the rat submandibular gland and its secretions. several groups of animals were offered either control diets or diets containing capsaicin (from 0.0001 to 0.1%) for seven days. ... | 1999 | 10520965 |
2,4-nonadienal and benzaldehyde bioantimutagens in fushimi sweet pepper (fushimi-togarashi). | fushimi sweet pepper, "fushimi-togarashi", is one of the "kyo-yasai", traditional vegetables, in kyoto, japan. the chloroform fraction of fushimi sweet pepper showed bioantimutagenicity on uv induced mutation in escherichia coli b/r wp2. the bioantimutagen was purified with silica gel chromatography and identified as 2, 4-nonadienal (id(50) = 20 microg/plate) on the basis of gc retention time and ei-ms spectrum of authentic 2,4-nonadienal. the sweet pepper also contained a known bioantimutagen, ... | 1999 | 10563930 |
lipid peroxidation and the oxidative burst associated with infection of capsicum annuum by botrytis cinerea | a combination of electron paramagnetic resonance (epr) spectroscopy and analytical chemistry has been used to study the changes in free radical content, transition metal ion status and lipid peroxidation following inoculation of fruits of sweet pepper (capsicum annuum) with botrytis cinerea. epr detected a high concentration of an unidentified free radical associated with the spreading lesion that extends into the surrounding, healthy tissues. in addition, the epr-detectable iron(iii) was highes ... | 1999 | 10607300 |
evaluation of the efficacy of the crude extracts of capsicum frutescens, citrus limon and opuntia vulgaris against newcastle disease in domestic fowl in tanzania. | prophylactic and therapeutic efficacy of a combination of capsicum frutescens (red pepper), citrus limon (lemon) and opuntia vulgaris (prickly pear) against newcastle disease (nd) in domestic fowl were evaluated. eighty-eight broiler chickens were divided into five groups. birds from three groups were inoculated with velogenic nd virus strain, whereas birds from two groups were left as controls. two groups received a mixture of the plant extract three days prior to inoculation and birds from one ... | 1999 | 10624862 |
nutritional quality and the presence of anti-nutritional factors in leaf protein concentrates (lpc). | leaf protein concentrates were prepared from 25 different plant species. the concentrates contained acceptable levels of all essential amino acids; except methionine which was limiting with chemical scores ranging between 13.5-96%. lpcs from sesbania, nebergrass, lufa and sweet pepper were lethal to the rats. per ranged between 0.28 for safflower lpc up to 1.95 for rape. positive nitrogen balance was obtained with diets based on lpcs with mean values ranging between 6.4 and 22.42 mg n per day. t ... | 1999 | 10719564 |
renal lesions in streptozotocin-induced diabetic rats maintained on onion and capsaicin containing diets. | onion (allium cepa) powder and capsaicin, the pungent principle of red pepper (capsicum annum) were added in the amounts of 3 g% and 15 mg%, respectively, to the diet of streptozotocin-induced diabetic wistar rats for 8 weeks. the presence of renal lesions was assessed by the extent and quality of proteinuria and by the leaching of renal tubular enzymes into the urine. renal integrity was assessed by measuring the activities in the kidney tissue of several key enzymes of carbohydrate metabolism ... | 1999 | 15539326 |
analgesic effect of capsaicin in idiopathic trigeminal neuralgia. | twelve informed and consenting patients were studied to determine the influence of capsaicin, the pungent component of the red pepper, on trigeminal neuralgia. all of these patients had idiopathic trigeminal neuralgia. these patients were followed up for 1 yr after the topical application over the painful area of 1.0 g of capsaicin three times a day for several days. six patients had complete and four patients had partial relief of pain; the remaining two patients had no relief of pain. of the 1 ... | 1999 | 1539818 |
latex type i sensitization and allergy in children with atopic dermatitis. evaluation of cross-reactivity to some foods. | recent studies have demonstrated that allergy to natural rubber latex (nrl) is associated with cross-reactivity to certain foods. the aim of this study was to investigate the prevalence of nrl sensitization and allergy in children with atopic dermatitis (n=74). we also examined cross-reactions between latex and foods, and compared the frequency of suspected latex cross-reacting fruits in children with and without nrl-specific immunoglobulin e (ige). twelve of the 74 atopic children studied (16.2 ... | 1999 | 10565556 |
effects of red pepper on appetite and energy intake. | two studies were conducted to investigate the effects of red pepper (capsaicin) on feeding behaviour and energy intake. in the first study, the effects of dietary red pepper added to high-fat (hf) and high-carbohydrate (hc) meals on subsequent energy and macronutrient intakes were examined in thirteen japanese female subjects. after the ingestion of a standardized dinner on the previous evening, the subjects ate an experimental breakfast (1883 kj) of one of the following four types: (1) hf; (2) ... | 1999 | 10743483 |
effect of capsaicin-containing red pepper sauce suspension on upper gastrointestinal motility in healthy volunteers. | afferent nerves play a major role in the regulation of gastrointestinal motility. the questions remains if specific food ingredients can selectively activate such fibers. the aim of the study was to investigate the effect of intraesophageal application of a capsaicin-containing red pepper sauce (tabasco) suspension on upper gastrointestinal motility in a controlled trial. after a baseline recording [esophageal motility, balloon distension, electrogastrogram (egg)], red pepper or saline solution ... | 1998 | 9635602 |
[is there a correlation between dietary habits and hemorrhoidal disease?]. | it is empirically accepted that certain foods play a role in the pathogenesis of hemorrhoids or their acute exacerbation. the aim of this work was to determine whether there is a relationship between hemorrhoids and certain food-related or common toxin-related factors. | 1998 | 9767961 |
cross-reactivity between latex and sweet pepper due to prohevein. | 1998 | 9821486 | |
effects of red pepper added to high-fat and high-carbohydrate meals on energy metabolism and substrate utilization in japanese women. | the effects of dietary red pepper added to high-fat (hf) and high-carbohydrate (hc) meals on energy metabolism were examined in thirteen japanese female subjects. after ingesting a standardized dinner on the previous evening, the subjects took an experimental breakfast (1883 kj) under the following four conditions: hf meal, hf and red-pepper (10 g) meal, hc meal, or hc and red-pepper meal. palatability of the experimental meals was measured immediately after the meals. expired air was collected ... | 1998 | 10211048 |
distribution and diversity of geminiviruses in trinidad and tobago. | abstract seven crop and eight weed species from 12 agricultural locations in trinidad and tobago were assayed for the presence of whitefly-transmitted geminiviruses (wtgs) by using dot blot hybridization and polymerase chain reaction (pcr) amplification of the n-terminal coat protein sequence with degenerate primers. the amplified fragments were cloned and analyzed by restriction enzyme digestion to determine fragment length polymorphism among the cloned fragments. representative clones were the ... | 1998 | 18944827 |
chemoprotective properties of some pungent ingredients present in red pepper and ginger. | there has been a substantial body of data, supporting that dietary factors have a profound impact on prevention as well as etiology of human cancer. capsaicin has been tested by many investigators for its effects on experimental carcinogenesis and mutagenesis. data in the literature indicate that capsaicin has dual effects on carcinogenic and mutagenic processes. at present, there is no solid evidence that hot red and chili peppers or their principal pungent ingredient capsaicin are carcinogenic ... | 1998 | 9675305 |
in vitro antimutagenic and in vivo anticlastogenic effects of carotenoids and solvent extracts from fruits and vegetables rich in carotenoids. | the water insoluble residues of some carotenoid-rich fruits and vegetables, such as apricots, oranges, brussels sprouts, carrots, yellow-red peppers, and tomatoes, were sequentially extracted with n-hexane, dichloromethane, acetone, and 2-propanol, and solvent extracted materials were tested for inhibition of mutagenicities induced by aflatoxin b1 (afb1), benzo[a]pyrene (bap), 2-amino-3-methylimidazo[4,5-f]quinoline (iq), and cyclophosphamide (cp) in histidine-deficient strains of salmonella typ ... | 1998 | 9639691 |
effect of pepper and bismuth subsalicylate on gastric pain and surface hydrophobicity in the rat. | the mechanism by which dietary pepper causes dyspepsia and epigastric pain is poorly understood, as is the ability of bismuth subsalicylate (bss) to relieve these symptoms. | 1998 | 9663730 |
inhibition of listeria monocytogenes and aeromonas hydrophila by plant extracts in refrigerated cooked beef. | refrigerated ready-to-eat foods are becoming increasingly popular but are often vulnerable to contamination and subsequent growth by psychrotrophic foodborne pathogens. consequently, there is a need for additional methods to assure the safety of these foods. beef slices prepared from roasted whole sirloin tips were used in the study. nine plant extracts were evaluated for ability to inhibit the growth of two psychrotrophic pathogens (aeromonas hydrophila and listeria monocytogenes) in refrigerat ... | 1998 | 9708301 |
protective effects of fruits and vegetables against in vivo clastogenicity of cyclosphosphamide or benzo[a]pyrene in mice. | seven fruits and 10 vegetables commonly consumed in germany were investigated for their anticlastogenic potencies against cyclophosphamide (cp) and benzo[a]pyrene (bap) in the in vivo mouse bone marrow micronucleus assay. we detected protective effects in 76.5% and 70.6% of the samples, respectively, and more or less distinct quantitative differences between the various plant materials and the two clastogens investigated. with respect to cp, moderate activities were exerted by sweet cherries, st ... | 1998 | 9734714 |
lack of tumor promoting activity of capsaicin, a principal pungent ingredient of red pepper, in mouse skin carcinogenesis. | capsaicin (trans-8-methyl-n-vanillyl-6-nonenamide) is the major pungent principle of hot peppers of the genus capsicum. there have been numerous investigations to evaluate the effects of capsaicin on experimental carcinogenesis and mutagenesis, but the results are discordant. in the present study, we have assessed the tumor promoting potential of capsaicin using a two stage mouse skin carcinogenesis model. repeated applications of capsaicin (10 mumol) onto the shaven backs of female icr mice fol ... | 1998 | 9891468 |
vegetable and fruit consumption and prostate cancer risk: a cohort study in the netherlands. | the association between 21 vegetables and eight fruits and prostate cancer risk was assessed in the netherlands cohort study among 58,279 men of ages 55-69 years at baseline in 1986. after 6.3 years of follow-up, 610 cases with complete vegetable data and 642 cases with complete fruit data were available for analysis. in multivariate case-cohort analyses, the following rate ratios (rrs) and 95% confidence intervals (cis) for vegetable consumption were found (comparing highest versus lowest quint ... | 1998 | 9718219 |
study of lability and kinetics of the main carotenoid pigments of red pepper in the de-esterification reaction. | different concentrations of potassium hydroxide in methanol were used to control the time required for complete de-esterification of the carotenoids present in paprika oleoresin, and the effectiveness of the overall process was determined. with concentrated solutions of potash, 20% and 30% (w/v), the reaction was completed in a shorter time but the overall process was less effective. solutions of low concentration, 5% and 10% (w/v), enabled the kinetic study to be carried out and the rates of de ... | 1998 | 10554278 |
partial purification and characterization of red chlorophyll catabolite reductase, a stroma protein involved in chlorophyll breakdown. | red chlorophyll (chl) catabolite (rcc) reductase, which catalyzes the reaction of an intermediary chl catabolite (rcc) in the two-step cleavage reaction of pheophorbide (pheide) a into primary fluorescent catabolites (pfccs) during chl breakdown, was characterized and partially purified. rcc reductase activity was present at all stages of barley leaf development and even in roots. the highest specific activity was found in senescent leaves, which were used to purify rcc reductase 1000-fold. amon ... | 1997 | 12223836 |
chlorophyll breakdown in senescent chloroplasts (cleavage of pheophorbide a in two enzymic steps). | the cleavage of pheophorbide (pheide) a into primary fluoescent chlorophyll (chl) catabolites (pfccs) in senescent chloroplasts was investigated. chloroplast preparations isolated from senescent canola (brassica napus) cotyledons exhibited light-dependent production of pfcc when assay mixtures were supplemented with ferredoxin (fd). pfcc production in detergent-solubilized membranes was dependent on the presence of an fd-reducing system. pheide a cleavage required the action of two proteins, phe ... | 1997 | 12223835 |
isolation and characterization of cytosolic copper/zinc superoxide dismutase from capsicum annuum l. | a cdna clone for a cytosolic cu/zn superoxide dismutase (cu/znsod) was isolated and characterized from red pepper (capsicum annuum l.). the clone consisted of 735 bp containing one open reading frame (orf) of 459 bp, 46 bp of 5'- and 230 bp of 3'-untranslated region. the nucleotide sequence of the orf showed 93% homology with that of nicotiana plumbaginifolia and tomato. it encodes a polypeptide of 154 amino acids with a molecular weight of 15,300. genomic southern hybridization suggested that o ... | 1997 | 9387156 |
isocratic non-aqueous reversed-phase high-performance liquid chromatographic separation of capsanthin and capsorubin in red peppers (capsicum annuum l.), paprika and oleoresin. | a simple, rapid high-performance liquid chromatography method has been devised in order to separate and quantify the xanthophylls capsorubin and capasanthin present in red pepper (capsicum annuum l.) fruits and preparations made from them (paprika and oleoresin). a reversed-phase isocratic non-aqueous system allows the separation of xanthophylls within a few minutes, with detection at 450 nm, using methyl red as internal standard to locate the various carotenoids and xanthophylls found in plant ... | 1997 | 9025261 |
effect of capsianoside, a diterpene glycoside, on tight-junctional permeability. | previous work (hashimoto et al., (1994) biosci. biotech. biochem. 58, 1345) revealed that a sweet pepper extract enhanced the tight-junctional (tj) permeability of a human intestinal caco-2 cell monolayer. in the present study, the substance which modulated the tj permeability was chromatographically purified from the extract. the active substances were identified as capsianosides a-f, diterpene glycosides. treatment of the cells with capsianoside f, the most active compound, decreased the cellu ... | 1997 | 9042350 |
effects of capsaicin on chemically-induced two-stage mouse skin carcinogenesis. | capsaicin (trans-8-methyl-n-vanillyl-6-nonenamide) is a principal pungent ingredient of hot red peppers. there are some controversies with regard to its inherent tumorigenicity and mutagenicity. the present work was undertaken to assess tumor initiating and promotional effects of capsaicin in a two-stage mouse skin carcinogenesis model. a single topical application of capsaicin (10 micromol) followed by twice-weekly applications of 12-o-tetradecanoylphorbol-13-acetate onto shaven backs of female ... | 1997 | 9103286 |
[structural changes in the tissues of white rats after capsaicin administration]. | tissue structure of albino rat lung, skin and cornea changing after administration of capsaicin (neurotoxin isolated from red pepper) was studied using light and electron microscope. 5 mg/kg dose causes tissue swelling and microcirculatory bed reaction. 200 mg/kg dose leads to more significant dystrophic tissue alterations. fibrosclerosis signs were found in certain cases. microcirculatory disorders are proposed as the main reason for tissue structure alterations observed, although the mechanism ... | 1997 | 9244551 |
antibacterial activity of selected fatty acids and essential oils against six meat spoilage organisms. | the antibacterial activity of selected fatty acids and essential oils was examined against two gram-negative (pseudomonas fluorescens and serratia liquefaciens) and four gram-positive (brochothrix thermosphacta, carnobacterium piscicola, lactobacillus curvatus, and lactobacillus sake) bacteria involved in meat spoilage. various amounts of each preservative were added to brain heart infusion or mrs (deman, rogosa and sharpe) agars, and the minimum inhibitory concentration was determined for each ... | 1997 | 9310850 |