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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 ...200217598305
induction of resistance against the leafminer, liriomyza trifolii, by jasmonic acid in sweet pepper.sweet pepper (capsicum annuum) leaves at the mature stage have strong ovipositional deterrence against liriomyza trifolii (burgess) (diptera, agromyzidae), whereas the cotyledons are fiercely attacked by the fly. treatment of the cotyledons with 50 microm and 100 microm of a jasmonic acid (ja) solution caused the plant to acquire strong oviposition deterrence against the leafminer. an hplc analysis of the ja-treated cotyledons revealed the inducible accumulation of a compound. based on spectrosc ...200717587684
factors affecting the distribution of a predatory mite on greenhouse sweet pepper.the predatory mite neoseiulus cucumeris is used for biological control of phytophagous mites and thrips on greenhouse cucumber and sweet pepper. in a previous study, n. cucumeris provided effective control of broad mite but was only rarely found on the sampled leaves, raising questions about the factors affecting n. cucumeris distribution. to determine the distribution of n. cucumeris, leaves of pepper plants were sampled three times per day: just after sunrise, at noon and just before sunset fo ...200717534730
capsaicin is a novel blocker of constitutive and interleukin-6-inducible stat3 activation.capsaicin, a constituent of green and red peppers, has been linked with suppression of tumorigenesis through a mechanism that is not well understood. because the transcription factor signal transducer and activator of transcription 3 (stat3) has been closely linked with tumorigenesis, we investigated the effect of this vanilloid on the stat3 pathway in human multiple myeloma cells.200717505005
prevalence and genetic diversity of bacillus cereus in dried red pepper in korea.bacillus cereus is a foodborne spore-forming bacterial pathogen that is ubiquitous in the natural environment. infections with this pathogen manifest as diarrheal or emetic types of food poisoning. in this study, 140 samples of dried red pepper purchased in korea were assayed for the presence of b. cereus according to the u.s. food and drug administration standard culture method. a multiplex pcr assay was developed for the rapid confirmation of b. cereus as an alternative to conventional biochem ...200717477261
the composition of arnoia peppers (capsicum annuum l.) at different stages of maturity.'arnoia' peppers (capsicum annuum l. var. annuum cv. arnoia) are cultivated in areas surrounding the arnoia river, in galicia (northwest spain). some physical and chemical changes associated with maturation and storage conditions have been reported. changes in gross composition, the main physico-chemical parameters and mineral composition were evaluated in peppers collected directly from plants and at two different states of maturity (green and red fruits), and in commercially available peppers ...200717469770
effect of temperature on life history of aphidius colemani and aphidius matricariae (hymenoptera: braconidae), two parasitoids of aphis gossypii and myzus persicae (homoptera: aphididae).the performance of two aphid parasitoids, aphidius colemani viereck and aphidius matricariae (haliday), against aphis gossypii glover on greenhouse cucumber (cucumis sativus l.) and myzus persicae (sulzer) on sweet pepper (capsicum annuum l.) were evaluated at various constant temperatures. biological parameters of both parasitoids including developmental time, pupal survivorship, percentage of parasitism, and sex ratio of the progeny were studied at 5, 10, 15, 20, 25, 30, and 35 degrees c. at 2 ...200717445360
integrated control of pests in tropical and subtropical sweet pepper production.sweet pepper is now grown, in tropical and subtropical areas, under the integrated pest management (ipm) tactic of 'physical barrier', whereas it was once grown primarily in open fields. this management tactic, when properly employed, has the advantage of eliminating many of the larger open-field pests, and has resulted in greatly increased pepper yields. however, certain other pest populations are exacerbated by this ipm tactic. this paper reviews the primary pests and current control tactics i ...200717437258
[antioxidant capacity of fruits and vegetables cultivated in chile].the high prevalence of non transmissible chronic diseases (ncd) related to food consumption had increased the studies conducted to investigate the relationship between diet and health. a smaller incidence of ncd, with food patterns with high consumption of fruits and vegetables has been observed and chemical compounds of these foods have been one of the main subjects of the actual research in the reaqltion between food consumption and health. the effect of vegetable foods has been attributed to ...200617425182
pesticide residue analysis of vegetables by gas chromatography with electron-capture detection.a new and original analytical method was developed for the routine analysis of 28 multiclass pesticide residues in vegetables (green pepper, red pepper, and tomato). the extraction was performed with acetone, and the pesticides were partitioned into ethyl acetate-cyclohexane (1 + 1, v/v). residue levels in vegetables were determined by gas chromatography (gc) with electron-capture detection. residue identities were confirmed by gc coupled with mass spectrometry in the selected ion monitoring mod ...200817373459
final report on the safety assessment of capsicum annuum extract, capsicum annuum fruit extract, capsicum annuum resin, capsicum annuum fruit powder, capsicum frutescens fruit, capsicum frutescens fruit extract, capsicum frutescens resin, and capsaicin.capsicum-derived ingredients function as skin-conditioning agents--miscellaneous, external analgesics, flavoring agents, or fragrance components in cosmetics. these ingredients are used in 19 cosmetic products at concentrations as high as 5%. cosmetic-grade material may be extracted using hexane, ethanol, or vegetable oil and contain the full range of phytocompounds that are found in the capsicum annuum or capsicum frutescens plant (aka red chiles), including capsaicin. aflatoxin and n-nitroso c ...200717365137
effects of ch-19 sweet, a non-pungent cultivar of red pepper, on sympathetic nervous activity, body temperature, heart rate, and blood pressure in humans.we investigated the changes in autonomic nervous activity, body temperature, blood pressure (bp), and heart rate (hr) after intake of the non-pungent pepper ch-19 sweet and of hot red pepper in humans to elucidate the mechanisms of diet-induced thermogenesis (dit) due to ch-19 sweet. we found that ch-19 sweet activates the sympathetic nervous system (sns) and enhances thermogenesis as effectively as hot red pepper, ant that the heat loss effect due to ch-19 sweet is weaker than that due to hot r ...200717341828
some fungal endophytes from vegetable crops and their anti-oomycete activities against tomato late blight.to isolate endophytic fungi from vegetable plants and examine their in vivo anti-oomycete activity against phytophthora infestans in tomato plants.200717309513
capsicum ethanol extracts and capsaicin enhance interleukin-2 and interferon-gamma production in cultured murine peyer's patch cells ex vivo.we investigated the effects of red pepper (capsicum annuum lin.) extracts (capsicum extract) and its main pungent capsaicin on t helper 1 (th1) and 2 (th2) cytokine production in cultured murine peyer's patch (pp) cells in vitro and ex vivo. direct administration of capsicum extract (1 and 10 mug/ml) and capsaicin (3 and 30 mum) resulted in suppression of interleukin (il)-2, interferon (ifn)-gamma, il-4 and il-5 production. in an ex vivo experiment using pp cells removed from the mice after oral ...200717306834
nitrogenous ovipositional deterrents in the leaves of sweet pepper (capsicum annuum) at the mature stage against the leafminer, liriomyza trifolii (burgess).mature leaves of the sweet pepper, capsicum annuum, exhibited resistance against the american serpentine leafminer, liriomyza trifolii (burgess), agromyzidae. based on bioassay-guided fractionation, three compounds, namely 4-aminobutanoic acid, (2s,4r)-4-hydroxy-1-methyl-2-pyrrolidine carboxylic acid and 4-amino-1-beta-d-ribofuranosyl-2(1h)-pyrimidinone, were isolated from the leaves of sweet pepper. these compounds had significant oviposition deterrence towards adult flies of l. trifolii from l ...200717284863
maternal diet during pregnancy in relation to eczema and allergic sensitization in the offspring at 2 y of age.maternal diet during pregnancy might be one of the factors that influences fetal immune responses associated with childhood allergy.200717284754
tropical whitefly ipm project.the tropical whitefly ipm project (twfp) is an initiative of the systemwide ipm programme of the consultative group on international agricultural research (cgiar), financed by the department for international development (dfid) of the united kingdom, the danish international development agency (danida), the united states department of agriculture (usda) and agency for international development (usaid), the australian centre for international agricultural research (aciar), and the new zealand age ...200717222696
chilling and cultivar type affect the diversity of bacterial endophytes colonizing sweet pepper (capsicum anuum l.).a climate chamber experiment was conducted to assay the effect of low temperatures (chilling) on the diversity of bacteria colonizing the endospheres of two thermophilic sweet pepper (capsicum anuum l.) cultivars, milder spiral and ziegenhorn bello. structural diversity was analyzed by 16s rrna-based terminal restriction fragment length polymorphism (t-rflp) analysis and by the generation of 16s rrna gene libraries to determine dominant community members in t-rflp profiles. cultivable community ...200617215894
[photosynthetic and growth characteristics of different ecotype capsicum under weak light].this paper studied the effects of weak light on the photosynthetic characteristics, assimilates allocation, yield formation, and seedling growth of different ecotype capsicum (hot pepper and sweet pepper). the results showed that under weak light, the net photosynthetic rate (pn) , dark respiration rate (rd ) , night respiration rate (rn) , transpiration rate (tr) , water use efficiency (wue) , light compensation point (lcp) , co2 compensation point (ccp) and carboxylation efficiency ( ce) of te ...200617209386
influence of topical capsaicin on facial sensitivity in response to experimental pain.capsaicin, the pungent component of the red pepper, has been used as an analgesic in a variety of pain conditions, but sensory impairment after long-term treatment has been concerned. this study investigated the influence of topical capsaicin on various types of sensations including pain in the facial areas innervated by the mental nerve, and also evaluated whether the measurement of cutaneous current perception threshold (cpt) is reliable for the quantification of sensory change following capsa ...200717207073
difference in folate content of green and red sweet peppers (capsicum annuum) determined by liquid chromatography-mass spectrometry.folic acid (pteroylmonoglutamic acid) is used in enriched foods; however, very little folic acid occurs naturally in fruits and vegetables. for the u.s. department of agriculture's national food and nutrient analysis program, a number of fruits and vegetables have been assayed for endogenous folates, by a liquid chromatography-mass spectrometry method, to evaluate the accuracy of existing data for total folate determined by standard microbiological analysis. folate in red and green sweet peppers ...200617177533
effects of ch-19 sweet, a non-pungent cultivar of red pepper, in decreasing the body weight and suppressing body fat accumulation by sympathetic nerve activation in humans.'ch-19 sweet' is a non-pungent red pepper and enhances the energy expenditure in humans in like manner to the pungent red pepper. we investigated in this study the effects of a repeated intake of ch-19 sweet for two weeks on the body weight and body fat in humans. changes in the autonomic nervous activity after ingesting ch-19 sweet were also measured by a power spectral analysis. we established a new protocol which allows the precise detection of weight change in humans by using fewer subjects. ...200617151481
analysis of the contents of pungent compounds in fresh korean red peppers and in pepper-containing foods.an hplc method has been developed for the analysis of extracts of fresh peppers containing capsaicinoids and of both capsaicinoids and piperines in pepper-containing foods produced and sold in korea. the hplc method was optimized by defining how composition of the mobile phase affected retention times. both identification and quantification were based on retention times and the following criteria: linearity of the uv response at 280 nm in hplc, recoveries from spiked samples, and observed indivi ...200617117787
ascorbic acid contents of pakistani fruits and vegetables.fresh fruits and vegetables are good sources of vitamin c which is known for its antioxidant and immune-enhancing effects. the objective of this study was to determine ascorbic acid (vitamin c) contents of regularly consumed fruits and vegetables available in pakistani markets. most commonly used fresh fruits and vegetables were homogenized in 5% trichloroacetic acid, and ascorbic acid contents in the extracts were determined using a spectrophotometric method. banana, custard apple, orange, lemo ...200617105704
qualitative analysis of mdr-reversing anastasia black (russian black sweet pepper, capsicum annuum, solanaceae) extracts and fractions by hplc and lc-ms-ms methods.in earlier experiments, the mdr (multidrug resistance)-reversal activities of anastasia black (russian black sweet pepper) extracts had been analysed. recently, the most effective mdr reversing extracts and fractions have been separated by hplc (high-performance liquid chromatography, for carotenoids) and lc-ms-ms (hplc combined with mass spectrometry, for phenolic compounds) methods. as a result of the analytical studies, the following flavonoids had been identified: feruloyl glucopyranoside, q ...200617091773
salmonella prevalence and total microbial and spore populations in spices imported to japan.a total of 259 samples of 40 types of spices were tested for salmonella prevalence and total microbial and spore populations. salmonella enterica serotypes weltevreden and senftenberg were isolated from a black- and red-pepper sample, respectively. because salmonella was not detected by the most-probable-number method, it indicated that at least one cell of the microorganism was present in 25 g of sample. the mean aerobic bacterial count was greater than 5.39 log cfu/g in turmeric, garam masala, ...200617066938
new constituents of sweet capsicum annuum l. fruits and evaluation of their biological activity.four new acyclic diterpene glycosides named capsianosides (1-4), together with 12 known compounds, were isolated from the fresh sweet pepper fruits of capsicum annuum l., a plant used as a vegetable food, spice, and external medicine. the chemical structures of new natural compounds, as well as their absolute configurations, were established by means of spectroscopic data including infrared, high-resolution mass spectrometry, and one- and two-dimensional nuclear magnetic resonance and by chemica ...200617002415
effect of composted sewage sludge application to soil on sweet pepper crop (capsicum annuum var. annuum) grown under two exploitation regimes.the aim of this study is to monitor the effect of the application of three increasing amounts of composted sewage sludge (3, 6 and 9 kg compost m(-2)) on the physico-chemical properties of a horticultural calcareous soil where sweet pepper plants (capsicum annuum var. annuum) cv. california were grown. a comparative study of two different exploitation regimes was carried out; the first was an open-air field-grown plot and the second plot was kept under controlled conditions in a greenhouse. chan ...200716996727
[novel application of ftir to the analysis of sweet pepper seeds and tomato seeds with space mutation].comparative study of the sweet pepper and tomato seeds lines with space mutation and corresponding conventional seeds was carried out with ftir, in an attempt to search for the influence of space environment upon mutation. the similarities among space seeds lines are: the absorbance at near 1,160-1,061 cm(-1) increased. this result shows that the stretching vibration of c-o on the structure of carbohydrates was enhanced by space mutation. the special mutations are: (1) the absorbance at 2,854 cm ...200616961230
capsaicin induced cell cycle arrest and apoptosis in human esophagus epidermoid carcinoma ce 81t/vgh cells through the elevation of intracellular reactive oxygen species and ca2+ productions and caspase-3 activation.capsaicin (n-vanillyl-8-methyl-1-nonenamide) is found in pungent fruits, especially in red pepper. many studies have focused on the anticarcinogenic, antimutagenic or chemopreventive activities of capsaicin. however, the effects of capsaicin on human esophagus epidermoid carcinoma cells have never been investigated. in this study, we investigated the effects of capsaicin on esophagus epidermoid carcinoma cells in vitro and further examined the molecular mechanisms of capsaicin-induced apoptosis ...200616942782
capsaicinol: synthesis by allylic oxidation and its effect on trpv1-expressing cells and adrenaline secretion in rats.capsaicinol is an ingredient of hot red pepper. in this study, we developed a novel method for capsaicinol synthesis and examined capsaicinol's physiological effects on capsaicin receptor (trpv1)-related actions. allylic oxidation of capsaicin by palladium acetate (pd(oac)(2)) resulted in the formation of (+/-)-capsaicinol acetate at a 7.2% yield in a single step. the effectiveness of (+/-)-capsaicinol in trpv1 activation (ec(50)=1.1 microm) was found to be weaker than that of capsaicin (ec(50)= ...200616926503
effect of an acute intraluminal administration of capsaicin on oesophageal motor pattern in gord patients with ineffective oesophageal motility.ineffective oesophageal motility (iom) is a functional disorder affecting about 50% of gastro-oesophageal reflux disease (gord) patients. this disease in a severe form limits the clearing ability of the oesophagus and is considered one of the predictive factors for poorer gord resolution. capsaicin, the active compound of red pepper, exerts a prokinetic effect on oesophageal motility in healthy subjects by increasing the amplitude of body waves, even if no evidence exists on its possible role in ...200616918727
identification of a novel cys2/his2-type zinc-finger protein as a component of a spermine-signaling pathway in tobacco.in a previous work, we identified a cys(2)/his(2)-type zinc-finger transcription repressor, (zft1), that functions in a spermine-mediated signal transduction pathway in tobacco plants. database search disclosed the presence of another cys(2)/his(2)-type zinc-finger protein zfp1 (accession number aac06243) in tobacco plants. in this work, we characterized zfp1 and investigated whether this protein is also involved in a spm-signaling pathway. this factor showed the highest identity to petunia zpt2 ...200716882456
[an analysis of sweet pepper seeds with space flight mutagenesis by ftir].the first-time application of ftir to analyzing and comparing two sweet pepper seeds lines of space mutation and two sweet pepper seeds lines bred in system approaches as well as their spectra is presented. the ir spectrum of sweet pepper seeds lines is mainly composed of the band of adsorption of protein and that of carbohydrates. the absorbance of the two sweet pepper seeds lines of space mutation at 2854, 1652, 1542 and 1160-1062 cm(-1) was enhanced. the peak near 2854 cm(-1) is attributable ...200616830749
short-term vegetable intake by young children classified by 6-n-propylthoiuracil bitter-taste phenotype.genetic variation in sensitivity to the bitterness of 6-n-propylthiouracil (prop) is thought to play a role in the acceptance and rejection of bitter-tasting vegetables by young children.200616825702
regulation of carbon partitioning in source and sink leaf parts in sweet pepper (capsicum annuum l.) plants : role of fructose 2,6-bisphosphate.area expansion rate, partitioning of photosynthetically fixed carbon, and levels of fructose 2,6-bisphosphate (fru-2,6-p(2)) were determined in individual parts of developing leaves of sweet pepper (capsicum annuum l.). the base was rapidly expanding and allocated less carbon to sucrose synthesis in comparison to the leaf tip, where expansion had almost stopped. the change in leaf expansion rate and carbon partitioning happened gradually. during day time levels of fru-2,6-p(2) were consistently ...199016667515
function of rhizodermal transfer cells in the fe stress response mechanism of capsicum annuum l.a variety of red pepper (capsicum annuum l., cv yaglik) responds to fe deficiency stress with simultaneously enhanced h(+) extrusion, reduction of ferric ions and synthesis of malic and citric acid in a swollen subapical root zone densely covered with root hairs. it is demonstrated that these stress responses temporally coincide with the development of rhizodermal and hypodermal transfer cells in this root zone. during stress response the transfer cells show a marked autofluorescence which could ...198616665060
effect of different thai traditional processing of various hot chili peppers on urethane-induced somatic mutation and recombination in drosophila melanogaster: assessment of the role of glutathione transferase activity.four different thai traditional chili peppers, namely bird pepper (capsicum frutescens), red chili spur peppers (capsicum annuum), green bell peppers and sweet pepper (c. annuum) were investigated for their antimutagenic properties. each chili was prepared in three formulations commonly used for chili food processing; raw paste (chili ground in water), pickled in vinegar or stir-fried in palm oil. each sample was tested for its antimutagenic effect against urethane by using the somatic mutation ...200616624474
capsaicin and gastric ulcers.in recent years, infection of the stomach with the organism helicobacter pylori has been found to be the main cause of gastric ulcers, one of the common ailments afflicting humans. excessive acid secretion in the stomach, reduction in gastric mucosal blood flow, constant intake of non-steroid anti-inflammatory drugs (nsaids), ethanol, smoking, stress etc. are also considered responsible for ulcer formation. the prevalent notion among sections of population in this country and perhaps in others i ...200616621751
the effect of cooking method upon the titratable acidity of a popular vegetarian dish--scope for reducing its erosive potential?the purpose of this in vitro study was to determine the effect of cooking method on the erosive potential of ratatouille. two cooking methods, stewing and oven roasting, were applied to standardised ingredients taken from the same fruits and vegetables. the resultant dishes were liquidised and diluted with 100 mls of distilled water. five 25 ml samples of each group were titrated to ph 7.0 against 0.1 molar sodium hydroxide. in order to ascertain the relative contribution of each ingredient each ...200616599095
antiobesity effect of kochujang (korean fermented red pepper paste) extract in 3t3-l1 adipocytes.kochujang (korean fermented red pepper paste) is a mixture of fermented soybeans, wheat, and red pepper powder. kochujang has been reported to reduce body fat gain and lipid levels of adipose tissues and serum in rats. we studied the inhibitory effect of kochujang on lipid accumulation and investigated the molecular mechanism of the action in 3t3-l1 adipocytes by measuring the expression levels of adipocyte-specific genes by real-time reverse transcription-polymerase chain reaction. when 3t3-l1 ...200616579723
organic acids, sugars, and l-tryptophane in exudates of vegetables growing on stonewool and their effects on activities of rhizosphere bacteria.the influence of stonewool substrate on the exudation of the major soluble carbon nutrients and of the auxin precursor tryptophane for pseudomonas biocontrol agents was studied. to this end, the composition of the organic acids and sugars, as well that of tryptophane, of axenically collected exudates of seed, seedlings, and roots of tomato, cucumber, and sweet pepper was determined. the major results were as follows. i) the total amount of organic acid is much higher than that of total sugar. ii ...200616570655
dehydro-alpha-lapachone isolated from catalpa ovata stems: activity against plant pathogenic fungi.the methanol extract of stems of catalpa ovata g don exhibits potent in vivo antifungal activity against magnaporthe grisea (hebert) barr (rice blast) on rice plants, botrytis cinerea pers ex fr (tomato grey mould) and phytophthora infestans (mont) de bary (tomato late blight) on tomato plants, puccinia recondita rob ex desm (wheat leaf rust) on wheat plants and blumeria graminis (dc) speer f. sp. hordei marchal (barley powdery mildew) on barley plants. an antifungal substance was isolated and i ...200616550502
capsaicin, a component of red peppers, inhibits the growth of androgen-independent, p53 mutant prostate cancer cells.capsaicin is the major pungent ingredient in red peppers. here, we report that it has a profound antiproliferative effect on prostate cancer cells, inducing the apoptosis of both androgen receptor (ar)-positive (lncap) and -negative (pc-3, du-145) prostate cancer cell lines associated with an increase of p53, p21, and bax. capsaicin down-regulated the expression of not only prostate-specific antigen (psa) but also ar. promoter assays showed that capsaicin inhibited the ability of dihydrotestoste ...200616540674
overexpression of cahsp26 in transgenic tobacco alleviates photoinhibition of psii and psi during chilling stress under low irradiance.a sweet pepper cdna clone, cahsp26 encoding the chloroplast (cp)-localized small heat shock protein (shsp), was isolated and characterized with regard to its sequence, response to various temperatures and function in transgenic tobacco plants. the deduced amino acid sequence contained three highly conserved regions, showing high identities with other plant shsps. expression of the cahsp26 gene showed that the mrna accumulation of cahsp26 was induced by heat stress. higher transcript levels were ...200716513207
hydrolysis of zeaxanthin esters by carboxyl ester lipase during digestion facilitates micellarization and uptake of the xanthophyll by caco-2 human intestinal cells.zeaxanthin (zea) and lutein are the only dietary carotenoids that accumulate in the macular region of the retina and lens. it was proposed that these carotenoids protect these tissues against photooxidative damage. few plant foods are enriched in zea, and information about the bioavailability of zea from these foods and its accumulation in ocular tissues is limited. the amounts of free zea and its mono- and diesters were measured for several plant foods that have relatively high concentrations o ...200616484529
capsaicin-induced cell death in a human gastric adenocarcinoma cell line.capsaicin, a pungent ingredient found in red pepper, has long been used in spices, food additives, and drugs. cell death induced by the binding of capsaicin was examined in a human gastric adenocarcinoma cell line (ags cells).200516419151
gibberellins-producing rhizobacteria increase endogenous gibberellins content and promote growth of red peppers.the growth of red pepper plants was enhanced by treatment with the rhizobacterium, bacillus cereus mj-1. red pepper shoots showed a 1.38-fold increase in fresh weight (fw) and roots showed a 1.28-fold fw gain. this plant growth-promoting rhizobacterium (pgpr) has been reported to produce gibberellins (gas). other gas-producing rhizobacteria, bacillus macroides cj-29 and bacillus pumilus cj-69, also enhanced the fw of the plants. they were less effective than b. cereus mj-1, though. the endogenou ...200516410767
impact of food disinfection on beneficial biothiol contents in vegetables.in this work we investigated the impact of food disinfection on the beneficial biothiol contents in a suite of vegetables consumed daily, including spinach, green bean, asparagus, cucumber, and red pepper. four disinfection technologies commonly studied and/or used in food processing and preservation, including hydrogen peroxide, free chlorine, and gaseous- and aqueous-phase ozone, were examined with common dosages and contact times. results indicate that the common disinfection technologies may ...200516332139
ovipositional deterrent on mature stage of sweet pepper, capsicum annuum, against liriomyza trifolii (burgess).liriomyza trifolii (burgess), the american serpentine leafminer fly, is a well-known serious pest in the world. this insect species attacks plants of more than 21 families including solanaceae plants. a sweet pepper, capsicum annuum (solanaceae), on mature stage, however, shows resistance to this leafminer fly. this resistance is based on the ovipositional deterrent in the sweet pepper leaf against the fly species. based on the bioassay guided fractionation, phytol [(2e)-3,7,11,15-tetramethyl-2- ...200916320617
effect of a mixture of red pepper (capsicum frutescens) and an amino-acid on gastric acid secretion.the effects of a mixture of red pepper suspension and alpha-alanine (an amino-acid) on gastric acid secretion in 33 duodenal ulcer and 18 non-duodenal ulcer patients were studied. this mixture caused an increase of gastric acid in the two groups of patients, more so in the duodenal ulcer group (0.025 > p > 0.010). compared with the results of previous studies the administration of alpha-alanine in red pepper suspension produced less gastric acid than the fresh red pepper suspension alone.197616295058
expression of the hypersensitive response-assisting protein in arabidopsis results in harpin-dependent hypersensitive cell death in response to erwinia carotovora.active defense mechanisms of plants against pathogens often include a rapid plant cell death known as the hypersensitive cell death (hcd). hypersensitive response-assisting protein (hrap) isolated from sweet pepper intensifies the harpin(pss)-mediated hcd. here we demonstrate that constitutive expression of the hrap gene in arabidopsis results in an enhanced disease resistance towards soft rot pathogen, e. carotovora subsp. carotovora. this resistance was due to the induction of hcd since differ ...200516270229
apoptosis induction by dohevanil, a dha substitutive analog of capsaicin, in mcf-7 cells.capsaicin (8-methyl-n-vanillyl-6-nonenamide), a major pungent ingredient in a variety of red peppers of the genus capsicum, is a type of vanilloid. it has been shown to induce apoptosis in many cell types. the effects of vanilloids on apoptosis induction are thought to be correlated with the length and degree of the unsaturation of the fatty acyl chains. in this study, we compared the effect of capsaicin and its docosahexaenoic acid (dha, c22:6) analog (we named as dohevanil) on human breast can ...200616260002
ovipositional deterrent in the sweet pepper, capsicum annuum, at the mature stage against liriomyza trifolii (burgess).liriomyza trifolii (burgess), the american serpentine leafminer fly, is well known as a serious pest throughout the world. this insect attack over 21 different plant families including solanaceae plants. the mature sweet pepper, capsicum annuum (solanaceae), however, shows resistance to this leafminer fly. this resistance is based on the ovipositional deterrent in the sweet pepper leaf against the fly species. based on bioassay-guided fractionation, luteolin 7-o-beta-d-apiofuranosyl-(1-->2)-beta ...200516244431
identification of a male-produced aggregation pheromone in the western flower thrips frankliniella occidentalis.two major components have been detected in the headspace volatiles of adult male frankliniella occidentalis (pergande) (thysanoptera: thripidae) that are not present in the headspace volatiles of adult females. the compounds were identified as (r)-lavandulyl acetate and neryl (s)-2-methylbutanoate by comparison with synthetic standards using gas chromatography (gc), gc mass spectrometry (ms), and chiral gc. field trials were conducted with synthetic compounds in naturally infested crops of sweet ...200516222777
simultaneous determination of sudan dyes and carotenoids in red pepper and tomato products by hplc.to simultaneously detect sudan dyes and carotenoids in red pepper and tomato products, high-performance liquid chromatography (hplc) methods with photodiode-array detection are developed and validated. the methods include the use of end-capped and nonend-capped adsorbents with a gradient elution system starting with water containing methanol. water content of 9% in the starting mobile phase is found to be necessary to ensure sufficient separation of sudan dyes and to avoid overlapping or interfe ...200516212791
aflatoxin and ochratoxin a content of spices in hungary.in october and november 2004, 91 spice samples (70 ground red pepper, six black pepper, five white pepper, five spice mix and five chilli samples), the majority of which originated from commercial outlets, were analysed for aflatoxins b1, b2, g1 and g2 (afb1, afb2, afg1, afg2) and ochratoxin a (ota) content by high-performance liquid chromatography (hplc) after immunoaffinity column clean-up. eighteen of the 70 ground red pepper samples contained afb1, seven of them in a concentration exceeding ...200516192072
activity of some aminoglycoside antibiotics against true fungi, phytophthora and pythium species.to investigate the in vitro antifungal and antioomycete activities of some aminoglycosides against true fungi and phytophthora and pythium species and to evaluate the potential of the antibiotics against phytophthora late blight on plants.200516162234
bioactivities of anastasia black (russian sweet pepper).anastasia black (russian sweet pepper) of capsicum annuum l. var. angulosum mill. (solanaceae) was successively extracted with hexane, acetone, methanol and 70% methanol, and the extracts were further separated into a total of twenty-three fractions by silica gel or octadecylsilane (ods; c18) column chromatography. these extracts and fractions were investigated for their cytotoxicity, anti-human immunodeficiency virus (hiv), anti-helicobacter pylori (h. pylori), urease inhibition and multidrug r ...200516158935
gene stacking in phalaenopsis orchid enhances dual tolerance to pathogen attack.cymbidium mosaic virus (cymmv) and erwinia carotovora have been reported to cause severe damage to orchid plants. to enhance the resistance of orchids to both viral and bacterial phytopathogens, gene stacking was applied on phalaenopsis orchid by double transformation. plbs originally transformed with cymmv coat protein cdna (cp) were then re-transformed with sweet pepper ferredoxin-like protein cdna (pflp) by agrobacterium tumefaciens, to enable expression of dual (viral and bacterial) disease ...200516145836
characterization of carotenoids and carotenoid esters in red pepper pods (capsicum annuum l.) by high-performance liquid chromatography/atmospheric pressure chemical ionization mass spectrometry.carotenoids and carotenoid esters were extracted from red pepper pods (capsicum annuum l.) without saponification. among the 42 compounds detected, 4 non-esterified, 11 mono- and 17 diesters were characterized based on their retention times, uv/vis spectra and their fragmentation patterns in collision-induced dissociation experiments in atmospheric pressure chemical ionization mass spectrometry (apci-ms). positive and negative ion mode measurements were used for the characterization of major and ...200516124038
[cdna cloning and expression of a cytosolic small heat shock protein gene (cahsp18) from capsicum annuum].full length 779 bp cytosolic clsss i shsp cdna was cloned from heat-shocked sweet pepper leaves using a pcr approach with degenerate primers designed from conserved motifs found in a number of plant cytosolic clsss i shsp genes, named cahsp18. its accession number is ay284925. cahsp18 was high identified with nicotiana tabacum (fig.1). a multi-gene family was found in sweet pepper genomic dna by southern-blot analysis (fig.3). northern blot revealed that the expression of cahsp18 in sweet pepper ...200516121013
inhibitory effects of glycolipids fraction from spinach on mammalian dna polymerase activity and human cancer cell proliferation.we succeeded in purifying the fraction containing the major glycolipids in monogalactosyl diacylglycerol, digalactosyl diacylglycerol and sulfoquinovosyl diacylglycerol (sqdg) from dried vegetables. this glycolipids fraction was an inhibitor of dna polymerase alpha (pol alpha) in vitro and also the proliferation of human cancer cells. in this study, eight common vegetables were investigated in terms of the glycolipids fraction, the amounts of major glycolipids, mammalian dna polymerase inhibitor ...200516081275
effect of temperature and host plant leaf morphology on the efficacy of two entomopathogenic biocontrol agents of thrips palmi (thysanoptera: thripidae).the efficacy of two entomopathogenic biocontrol agents, steinernema feltiae (filipjev) and verticillium lecanii (zimmerman) viégas (reclassified now as lecanicillium muscarium (petch) zare & gams), against thrips palmi karny was investigated. assessments of the effect of temperature on the efficacy of s. feltiae indicated that higher mortality of t. palmi was recorded at 20 degrees c compared to either 15 or 25 degrees c, whereas significantly higher t. palmi mortality followed application of l. ...200516048680
the effects of ripening stage and processing systems on vitamin c content in sweet peppers (capsicum annuum l.).morrón pepper of 'fresno de la vega' (capsicum annuum l.) is a big sweet variety cultivated in the province of león (northwestern spain). changes in vitamin c content of this variety of pepper as a function of ripeness, storage and different preservation systems were studied. the ascorbic acid content increases in peppers as they ripen. for green mature, breaker and red peppers values of 107.3+/-1.84, 129.6+/-3.11 and 154.3+/-7.56 mg/100 g edible portion were found. the vitamin c content for gre ...200516019314
effects of flavorings, storage conditions, and storage time on survival of staphylococcus aureus in sürk cheese.the objectives of this study were to determine the cumulative effects of flavorings (chili pepper, thyme, mint, cumin, nutmeg, allspice, clove, cinnamon, black pepper, salt, and hot red pepper paste), storage conditions, and storage time on the survival of staphylococcus aureus in sürk cheese and to monitor the associated chemical changes. sürk cheese, a traditional turkish cheese, was produced by heating diluted nonfat yogurt and adding flavorings to the resultant acid-heat curd. the cheese was ...200516013393
safety of capsaicin cough challenge testing.capsaicin, the pungent extract of red peppers, has achieved widespread use in clinical research because it induces cough in a dose-dependent and reproducible manner. although > 2 decades of experience has led investigators to consider capsaicin cough challenge testing a safe diagnostic modality, this issue has not been specifically addressed in the literature.200516002935
determination of the equilibrium, kinetic and thermodynamic parameters of adsorption of copper(ii) ions onto seeds of capsicum annuum.adsorption of copper ions onto capsicum annuum (red pepper) seeds was investigated with the variation in the parameters of ph, contact time, adsorbent and copper(ii) concentrations and temperature. the nature of the possible adsorbent and metal ion interactions was examined by the ftir technique. the copper(ii) adsorption equilibrium was attained within 60 min. adsorption of copper(ii) ions onto c. annuum seeds followed by the langmuir, freundlich and dubinin-radushkevich (d-r) isotherm models. ...200515990228
antioxidant activity of the main phenolic compounds isolated from hot pepper fruit (capsicum annuum l).four cultivars (bronowicka ostra, cyklon, tornado, and tajfun) of pepper fruit capsicum annuum l. were studied for phenolics contents and antioxidant activity. two fractions of phenolics, flavonoids (with phenolic acids) and capsaicinoids, were isolated from the pericarp of pepper fruit at two growth stages (green and red) and were studied for their antioxidant capacity. both fractions from red fruits had higher activities than those from green fruits. a comparison of the capsaicinoid fraction w ...200515740069
residual behaviour of profenofos on some field-grown vegetables and its removal using various washing solutions and household processing.profenofos (selecron 72% ec), was sprayed on field-grown pepper and eggplant at the recommended rate of 1.28 kg a,i/ha. fruit samples were collected at 1 h to 14 days after application and analysed to determine the content and dissipation rate of profenofos. the effect of different washing solutions and some household processing on the removal of such residues from treated vegetables were also investigated. profenofos residues were quantified by using gas chromatography. the results showed that ...200515721202
production of an anti-fungal substance for biological control of phytophthora capsici causing phytophthora blight in red-peppers by streptomyces halstedii.the culture broth of streptomyces halstedii aj-7 suppressed the growth of phytophthora capsici, which causes phytophthora blight in red-peppers, with less than 1% survival of the pathogen after 12 h of treatment. the low molecular fraction (< or = 10 kda) of the culture broth retained anti-fungal activity against p. capsici after being held at 100 degrees c for 6 h.200515717130
suppression of the nuclear factor-kappab activation pathway by spice-derived phytochemicals: reasoning for seasoning.the activation of nuclear transcription factor kappab has now been linked with a variety of inflammatory diseases, including cancer, atherosclerosis, myocardial infarction, diabetes, allergy, asthma, arthritis, crohn's disease, multiple sclerosis, alzheimer's disease, osteoporosis, psoriasis, septic shock, and aids. extensive research in the last few years has shown that the pathway that activates this transcription factor can be interrupted by phytochemicals derived from spices such as turmeric ...200415659827
sensory and gastrointestinal satiety effects of capsaicin on food intake.decreased appetite and increased energy expenditure after oral consumption of red pepper has been shown.200515611784
pharmacological effects of fermented red pepper.the pharmacological effects were investigated of fermented red pepper (hf-s), which consisted of 14.7% carbohydrate, 1.5% lipid, 4.9% protein, 0.3% ash, 78.2% moisture content, with 0.15% capsaicin and 0.06% dihydrocapsaicin. oral administration of 0.25 ml hf-s for 3 weeks produced significant changes of the perirenal fat pad weight compared with the hf-control group, suggesting a suppressive effect on lipid accumulation and a significant decrease in the risk of arteriosclerosis. the hf-s (0.25 ...200415597334
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 ...199915539326
residues and half-lives of pyrethrins on field-grown pepper and tomato.the dried flower heads of tanacetum cinerariifolium trev. (family: compositae) contain insecticidal compounds collectively called "pyrethrins." pyrethrins are the subject of intense interest for use in crop protection because their toxicological properties permit control of certain insect species at application rates as low as 5-10 g ai acre(-1). seedlings of sweet pepper, capsicum annuum l. cv. bell boy hybrid and tomato, lycopersicon esculentum mill. cv. mountain spring f1 hybrid were planted ...200415473632
trpv1 and the gut: from a tasty receptor for a painful vanilloid to a key player in hyperalgesia.capsaicin, the pungent ingredient in red pepper, has been used since ancient times as a spice, despite the burning sensation associated with its intake. more than 50 years ago, nikolaus jancso discovered that capsaicin can selectively stimulate nociceptive primary afferent neurons. the ensuing research established that the neuropharmacological properties of capsaicin are due to its activation of the transient receptor potential ion channel of the vanilloid type 1 (trpv1). expressed by primary af ...200415464036
capsaicin-induced apoptosis of h-ras-transformed human breast epithelial cells is rac-dependent via ros generation.many studies have focused on the anticarcinogenic, antimutagenic or chemopreventive activities of capsaicin (trans-8-methyl-n-vanillyl-6-nonenamide) which is a major pungent ingredient in red pepper. we have previously shown that capsaicin selectively induces apoptosis in h-ras-transformed mcf10a human breast epithelial cells but not in their normal cell counterparts (int. j. cancer, 103, 475-482, 2003). in this study, we investigated the possible roles of reactive oxygen species (ros) and rac1 ...200415460446
quantitative inheritance of fruit size in red pepper (capsium frutescens l.). 195015414933
method validation of resistive heating--gas chromatography with flame photometric detection for the rapid screening of organophosphorus pesticides in fruit and vegetables.a rapid method for the screening of organophosphorus (op) pesticides in fruit and vegetables is reported. sample extracts were analysed using resistive heating-gas chromatography (rh-gc) with flame photometric detection (fpd). a carbofrit insert in the gc liner allowed injection of crude extracts onto the gc system. separation of up to 20 pesticides was achieved in 4.3 min with excellent retention time stability. signal-to-noise ratios of 5:1 or better were obtained for the majority of the pesti ...200415387192
antimicrobial and antioxidant effects of milk protein-based film containing essential oils for the preservation of whole beef muscle.milk protein-based edible films containing 1.0% (w/v) oregano, 1.0% (w/v) pimento, or 1.0% oregano-pimento (1:1) essential oils mix were applied on beef muscle slices to control the growth of pathogenic bacteria and increase the shelf life during storage at 4 degrees c. meat and film were periodically tested during 7 days for microbial and biochemical analysis. the lipid oxidation potential of meat was evaluated by the determination of thiobarbituric reactive substances (tbars). the availability ...200415373399
liquid chromatographic determination of novel aminithiazolecarboxamide fungicide residues in soil and crops using online solid-phase extraction.a simple and convenient liquid chromatographic method has been developed and applied to the analysis of the novel aminothiazolecarboxamide fungicide, ethaboxam, in soil and crops. after the isolation and concentration of analyte from soil and crops, clean-up and separation of sample solutions are performed by high-performance liquid chromatography with online solid-phase extraction. good linearity (r2 > 0.9995), recovery [for soil, 95.3-98.4%, and crops (grape, red pepper), 92.9-95.9%], and repe ...200415355576
effect of red pepper capsicum annuum var. conoides and garlic allium sativum on plasma lipid levels and cecal microflora in mice fed beef tallow.antihyperlipidemia or hypocholesterolaemic and antibacterial activities of red hot pepper and garlic are well known. to determine the effect of the dietary spices ingested to suppress blood lipids on the intestinal condition, we examined plasma lipid levels and cecal microflora in mice that were fed diets containing 19% (w/w) beef tallow and 2% red pepper capsicum annuum var. conoides 'takanotume' (rp) or garlic allium sativum 'white' (gp) for 4-weeks. plasma triacylglyceride level was suppresse ...200415354321
flower and fruit abortion in sweet pepper in relation to source and sink strength.source strength (assimilate supply) and sink strength (assimilate demand) of the plant were varied in different ways to investigate to what extent flower/fruit abortion in sweet pepper (capsicum annuum l.) is determined by the availability of assimilates. source strength was varied by changing the light level, plant density, and leaf pruning. sink strength was varied by changing the temperature and the number and position of earlier formed fruits. shading as well as heating for short periods sho ...200415333643
content of toxic and essential metals in canned mussels commonly consumed in tenerife, canary islands, spain.concentrations of three toxic heavy metals (hg, pb, cd) and six essential heavy metals (fe, zn, mn, cr, cu, ni) were determined in mussel conserves (mytilus galloprovincialis, bivalvia, mollusca) consumed habitually by individuals in tenerife (canary islands, spain). a total of 600 samples were analyzed, corresponding to six different commercial brands and four different processing types: pickled sauce (mixture of olive oil, vinegar, red pepper, laurel, and salt), coquille st. jacques sauce (coq ...200415270515
involvement of nadph oxidase-mediated generation of reactive oxygen species in the apototic cell death by capsaicin in hepg2 human hepatoma cells.although capsaicin (8-methyl-n-vanillyl-6-nonenamide), a pungent ingredient in a variety of red peppers of the genus capsicum, has been shown to induce apoptotic cell death in many cancer cells, the exact mechanism of this action of capsaicin is not completely understood. in this study, we investigated the possible mediation of the nadph oxidase-modulated production of reactive oxygen species (ros) in the apoptotic mechanism of capsaicin in hepg2 human hepatoblastoma cells. capsaicin induced apo ...200415190937
characterization and quantitation of antioxidant constituents of sweet pepper (capsicum annuum l.).sweet peppers (capsicum annuum l.) cv. vergasa have been studied at four maturity stages (immature green, green, immature red, and red). the individual phenolics (hydroxycinnamic acids and flavonoids), vitamin c (ascorbic acid and dehydroascorbic acid), and individual carotenoids were characterized and quantified. five hydroxycinnamic derivatives and 23 flavonoids were characterized and quantified from the pericarp of sweet pepper by high-performance liquid chromatography-diode array detection-e ...200415186108
the aflatoxin contamination of some pepper types sold in turkey.in the present study, 44 red-scaled pepper and 26 red powder pepper samples obtained from various spice retailers in erzurum, and 20 isot (red pepper produced in sanliurfa) were investigated for aflatoxin contamination using thin layer chromatography. aflatoxin (b + g) was found in 8 red pepper samples (18.2%), and 3 red powder peppers (10.7%), and 1 isot sample (5%). the aflatoxin amount ranged from 1.1 to 97.5 ppb in all samples investigated. the highest amount of aflatoxin was found in red-sc ...200415183993
dietary sources of vitamin c, vitamin e and specific carotenoids in spain.a cross-sectional study was conducted within the spanish cohort of the european prospective investigation in cancer and nutrition to assess the principal food sources of vitamin c, vitamin e, alpha-carotene, beta-carotene, lycopene, lutein, beta-cryptoxanthin and zeaxanthin in an adult spanish population. the study included 41446 healthy volunteers (25812 women and 15634 men), aged 29-69 years, from three spanish regions in the north (asturias, navarra and guipúzcoa) and two in the south (murcia ...200415182404
maximum tolerable dose of red pepper decreases fat intake independently of spicy sensation in the mouth.dietary red pepper suppresses energy intake and modifies macronutrient intake. we have investigated whether a stimulus in the mouth and the sensation of spiciness are necessary for red pepper-induced changes in energy and macronutrient intake in human volunteers. in a preliminary test, sixteen japanese male volunteers tasted samples of a soup with graded doses of red pepper in order to define a moderate and a maximum tolerable (strong) dose of red pepper. on the day of the experiment, a standard ...200415182402
efficacy of salts against fungal diseases in glasshouse crops.the constant input of chemical fungicides against foliar diseases in glasshouse crops has instigated research on alternative control substances. various salts have been mentioned in the literature and we have tested several bicarbonates, sulphates and phosphates against powdery mildew fungi in cucumber, tomato, sweet pepper and rose and against bremia lactucae in lettuce. the experiments were run according to eppo guidelines for efficacy in glasshouses of applied plant research (ppo). plants wer ...200315151280
effect of aphid-infested plants on the host location and learning behaviour of the parasitoid aphelinus abdominalis.aphelinus abdominalis dalman (hymenoptera: aphelinidae) is a generalist parasitoid of cereal (e.g. sitobion avenae) and greenhouse aphids (e.g. macrosiphum euphorbiae). it differs from aphidius spp. (hymenoptera: braconidae) by its robust constitution, longevity and its habit to use aphids not only as hosts for its progeny but also as prey (host feeding). in addition, a. abdominalis does not evoke aphidius-characteristic defence responses by attacked aphids as this wasp approaches its hosts very ...200315149107
growth promotion of red pepper plug seedlings and the production of gibberellins by bacillus cereus, bacillus macroides and bacillus pumilus.the growth of red pepper plug seedlings was promoted by bacillus cereus mj-1, b. macroides cj-29, and b. pumilus cj-69 isolated from the rhizosphere. gibberellins (gas), a well-known plant growth-promoting hormone, were detected in the culture broth of their rhizobacteria. among the gas, the contents of ga1, ga3, ga4, and ga7, physiologically active gas, were comparatively higher than those of others, suggesting that the growth promoting effect was originated from the gas. this isthe first repor ...200415127789
qualitative and quantitative variation among volatile profiles induced by tetranychus urticae feeding on plants from various families.many plant species are known to emit herbivore-induced volatiles in response to herbivory. the spider mite tetranychus urticae koch is a generalist that can feed on several hundreds of host plant species. volatiles emitted by t. urticae-infested plants of 11 species were compared: soybean (glycine max), golden chain (laburnum anagyroides), black locust (robinia pseudo-acacia), cowpea (vigna unguiculata), tobacco (nicotiana tabacum), eggplant (solanum melalonga), thorn apple (datura stramonium), ...200415074658
acaricidal activity of plant essential oils against dermanyssus gallinae (acari: dermanyssidae).the acaricial activity of 56 plant essential oils against poultry house-collected adult dermanyssus gallinae de geer was examined using direct contact and fumigation methods. in a filter paper contact bioassay, 100% mortality at 0.07 mgcm-2 was observed in bay, cade, cinnamon, clove bud, coriander, horseradish, lime dis 5f, mustard, pennyroyal, pimento berry, spearmint, thyme red and thyme white oils, whereas the mortality of these oils was significantly decreased at 0.02 mgcm-2. in fumigation t ...200415063940
flavonoids in vegetable foods commonly consumed in brazil and estimated ingestion by the brazilian population.the objective of this work was to quantify the flavonoids present in foods most commonly consumed by the brazilian population. the predominant flavonoids found in largest abundance in all of the analyzed vegetables were glycosides of quercetin. in lettuce, a small amount of luteolin was also detected. in sweet pepper, quercetin and luteolin were both present. white onion [48-56 mg/100 g of fresh weight (fw), expressed as aglycon], red onion (40-100 mg/100 g of fw), red lettuce (67-67.2 mg/100 g ...200414995109
effects of sesamin and capsaicin on the mrna expressions of delta6 and delta5 desaturases in rat primary cultured hepatocytes.sesamin, a lignan in sesame seeds and sesame seed oil, and capsaicin, the pungent principle of hot red pepper, affect lipid metabolism. sesamin specifically inhibits delta5 desaturase activity in the mortierella alpina fungus and rat liver microsomes, however, the effects of sesamin and capsaicin on mrna expressions of delta6 and delta5 desaturases are not still clear. in this study, we investigated the effects of sesamin and capsaicin on the desaturation indexes of delta6 [(gamma-linolenic acid ...200314974737
specific synthesis of 5,5'-dicapsaicin by cell suspension cultures of capsicum annuum var. annuum (chili jalapeño chigol) and their soluble and nacl-extracted cell wall protein fractions.hplc-uv, (1)h nmr, (13)c nmr, and (1)h-(1)h cosy analyses revealed that exogenous capsaicin was specifically converted into 5,5'-dicapsaicin by both cell suspension cultures of capsicum annuum var. annuum (chili jalapeño chigol) and their soluble and nacl-extracted cell wall protein fractions under oxidative conditions. in cell suspension cultures 5,5'-dicapsaicin was found only in biomass of capsaicin-fed cultures. this compound has not been detected before either in fresh fruits or in in vitro ...200414969559
[molecular aflp-marking of genotypes of pepper (capsicum annuum) cultivars].the results of aflp study of 14 capsicum annuum cultivars are presented. notwithstanding the known low genomic variation of large-fruited sweet pepper, aflp analysis proved to be suitable for detecting polymorphism and genotyping pepper cultivars. nine primer pairs were selected to allow identification of the cultivars under study. among-cultivar polymorphism detectable with these primers was estimated at 16.5%. a characteristic aflp pattern was obtained for each cultivar. several cultivar-speci ...200314964824
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 ...200214963835
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