Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| antioxidant activity and phenolic content of leaf infusions of myrtaceae species from cerrado (brazilian savanna). | abstractthere is considerable interest in identifying new antioxidants from plant materials. several studies have emphasized the antioxidant activity of species belonging to the myrtaceae family. however, there are few reports on these species from the cerrado (brazilian savanna). in this study, the antioxidant activity and phenolic content of 12 native myrtaceae species from the cerrado were evaluated (blepharocalyx salicifolius, eugenia bimarginata, eugenia dysenterica, eugenia klotzschiana, h ... | 2015 | 26560669 |
| isolation and expression analysis of 18 csbzip genes implicated in abiotic stress responses in the tea plant (camellia sinensis). | basic leucine zipper (bzip) transcription factors (tfs) play essential roles in regulating stress processes in plants. despite the economic importance of this woody crop, there is little information about bzip tfs in tea plants. in this study, 18 bzip genes were isolated from the tea plant (camellia sinensis) and named sequentially from csbzip1 to csbzip18. according to the phylogenetic classification as in arabidopsis, the csbzip genes spanned ten subgroups (group a, b, c, d, e, f, h, i, s and ... | 2015 | 26555901 |
| topical lipophilic epigallocatechin-3-gallate on herpes labialis: a phase ii clinical trial of averteax formula. | previous in vitro and in vivo studies indicated that catechins from the tea plant (camellia sinensis) have a therapeutic effect on herpes simplex virus infections. the aim of this study was to clinically evaluate a topical proprietary formulation containing lipophilic catechins (averteax, camellix, llc, evans, ga, usa) on recurrent herpes labialis. | 2015 | 26548726 |
| micronutrients (b, co, cu, fe, mn, mo and zn) content in made tea (camellia sinensis l.) and tea infusion with health prospect: a critical review. | tea (camellia sinensis l.) is a perennial acidophilic crop, and known to be a non-alcoholic stimulating beverage that is most widely consumed after water. the aim of this review paper is to provide a detailed documentation of selected micronutrient contents, viz. boron (b), cobalt (co), copper (cu), iron (fe), manganese (mn), molybdenum (mo) and zinc (zn) in made tea and tea infusion. available data from the literature were used to calculate human health aspect associated with the consumption of ... | 2015 | 26478953 |
| role of nicotine and camellia sinensis on the developing femur of chick. | to study the harmful effects of nicotine on the developing femur of chick and to observe the role of antioxidant camellia sinensis in the prevention of these effects. | 2015 | 26440840 |
| arrhythmogenic risk assessment following four-week pretreatment with nicotine and black tea in rat. | there is the controversy concerning the main component of tobacco, which is responsible for its arrhythmogenesis. in addition, there is the lack of adequate information about the influence of combination of black tea and nicotine on heart rhythm. | 2015 | 26436072 |
| the effect of herbal tea containing fenugreek seed on the signs of breast milk sufficiency in iranian girl infants. | one of the important reasons behind termination of breast-feeding in the first six months after childbirth is insufficient production of breast milk. | 2015 | 26430522 |
| transcriptional responses and flavor volatiles biosynthesis in methyl jasmonate-treated tea leaves. | tea (camellia sinensis) has long been consumed worldwide for its amazing flavor and aroma. methyl jasmonate (meja), which acts as an effective elicitor among the plant kingdom, could mostly improve the quality of tea aroma by promoting flavor volatiles in tea leaves. although a variety of volatile secondary metabolites that contribute to aroma quality have been identified, our understanding of the biosynthetic pathways of these compounds has remained largely incomplete. therefore, information ab ... | 2015 | 26420557 |
| intake and major sources of dietary flavonoid in korean adults: korean national health and nutrition examination survey 2010-2012. | with an effort to investigate possible relationship between flavonoids and health, an accurate estimation of flavonoid intake is valuable. we estimated dietary flavonoid intake and identified the major food sources. subjects were healthy adults aged >=19 y (n=11,474) who completed the 24-h dietary recall of the korean national health and nutritional examination survey (2010-2012). the us department of agriculture and newly estimated or published values for typical korean foods were combined into ... | 2015 | 26420187 |
| in vitro antioxidant effect of camellia sinensis on human cell cultures. | camellia sinensisis traditionally used in many polyherbal preparations for the treatment of different diseases and infections. its action has been associated with its antioxidant activities. in this study, antioxidant effect of camellia sinensis on hydrogen peroxide-induced human lymphocyte cell cultures was estimated. camellia sinensis showed high contents of ascorbic acid, phenols, flavonoids, and flavonols. good scavenging activity was evident by scavenging assays e.g. 2,2-diphenyl-2-picrylhy ... | 2015 | 26408866 |
| dissipation pattern, processing factors, and safety evaluation for dimethoate and its metabolite (omethoate) in tea (camellia sinensis). | residue levels of dimethoate and its oxon metabolite (omethoate) during tea planting, manufacturing, and brewing were investigated using a modified quechers sample preparation and gas chromatography. dissipation of dimethoate and its metabolite in tea plantation followed the first-order kinetic with a half-life of 1.08-1.27 d. tea manufacturing has positive effects on dimethoate dissipation. processing factors of dimethoate are in the range of 2.11-2.41 and 1.41-1.70 during green tea and black t ... | 2015 | 26406463 |
| chinese green tea and acute hepatitis: a rare yet recurring theme. | a previously healthy 16-year-old girl presented with signs of acute hepatitis. on initial enquiry, she had not taken any prescribed or 'over-the-counter' medications, and there was no recent travel history. further investigations revealed no viral, autoimmune or metabolic cause of hepatitis. only following specific questioning did she reveal that she had, in the preceding 3 months, regularly consumed internet ordered chinese green tea, which contained camellia sinensis. after ceasing green tea c ... | 2015 | 26400588 |
| rainwater, soil water, and soil nitrate effects on oxygen isotope ratios of nitrous oxide produced in a green tea (camellia sinensis) field in japan. | the oxygen exchange fraction between soil h(2)o and n(2)o precursors differs in soils depending on the responsible n(2)o-producing process: nitrification or denitrification. this study investigated the o-exchange between soil h(2)o and n(2)o precursors in a green tea field with high n(2)o emissions. | 2015 | 26377018 |
| a single oral administration of theaflavins increases energy expenditure and the expression of metabolic genes. | theaflavins are polyphenols found in black tea, whose physiological activities are not well understood. this study on mice evaluated the influence of a single oral administration of theaflavins on energy metabolism by monitoring the initial metabolic changess in skeletal muscle and brown adipose tissue (bat). oxygen consumption (vo2) and energy expenditure (ee) were increased significantly in mice treated with theaflavin rich fraction (tf) compared with the group administered vehicle alone. ther ... | 2015 | 26375960 |
| pyrrolizidine alkaloids in food and feed on the belgian market. | pyrrolizidine alkaloids (pas) are widely distributed plant toxins with species dependent hepatotoxic, carcinogenic, genotoxic and pneumotoxic risks. in a recent european food safety authority (efsa) opinion, only two data sets from one european country were received for honey, while one feed data set was included. no data are available for food or feed samples from the belgian market. we developed an lc-ms/ms method, which allowed the detection and quantification of 16 pas in a broad range of ma ... | 2015 | 26373269 |
| transcriptome analysis reveals key flavonoid 3'-hydroxylase and flavonoid 3',5'-hydroxylase genes in affecting the ratio of dihydroxylated to trihydroxylated catechins in camellia sinensis. | the ratio of dihydroxylated to trihydroxylated catechins (rdtc) is an important indicator of tea quality and biochemical marker for the study of genetic diversity. it is reported to be under genetic control but the underlying mechanism is not well understood. flavonoid 3'-hydroxylase (f3'h) and flavonoid 3',5'-hydroxylase (f3'5'h) are key enzymes involved in the formation of dihydroxylated and trihydroxylated catechins. the transcriptome and hplc analysis of tea samples from longjing43 and zhong ... | 2015 | 26367395 |
| pyrrolizidine and tropane alkaloids in teas and the herbal teas peppermint, rooibos and chamomile in the israeli market. | dehydro pyrrolizidine alkaloids (dehydro pas) are carcinogenic phytotoxins prevalent in the boraginaceae, asteraceae and fabaceae families. dehydro pas enter the food and feed chain by co-harvesting of crops intended for human and animal consumption as well as by carry-over into animal-based products such as milk, eggs and honey. recently the occurrence of dehydro pas in teas and herbal teas has gained increasing attention from the eu, due to the high levels of dehydro pas found in commercially ... | 2015 | 26365752 |
| green tea extract for external anogenital warts. | catephen (kora corporation ltd) is a herbal medicinal product consisting predominantly of catechins (sinecatechins) extracted from camellia sinensis (l.) o. kuntze folium (green tea leaf) formulated as a topical preparation for the treatment of external genital and perianal warts (condylomata acuminata).(1) marketing authorisation for an ointment containing 0.1g of green tea extract per gram (10%) was granted by the medicines and healthcare products regulatory agency (mhra) under the mutual reco ... | 2015 | 26471269 |
| comparison between folin-ciocalteu and prussian blue assays to estimate the total phenolic content of juices and teas using 96-well microplates. | folin-ciocalteu colorimetric assay (fc) is the most widely used assay to estimate the total phenolic content in foods, beverages, herbs and other plant extracts, but many chemical compounds may act as interfering agents, producing inaccurate estimations of the real concentration of phenolic compounds in the matrix. based on this limitation, the objective of this study was to compare, quantitatively, the folin-ciocalteu and prussian blue (pb) assays in estimating the total phenolic content in pur ... | 2015 | 26448565 |
| differential metabolic profiles during the albescent stages of 'anji baicha' (camellia sinensis). | 'anji baicha' is an albino tea cultivar with white shoots at low air temperature and green shoots at high air temperature in early spring. the metabolite contents in the shoots dynamically vary with the color changes and with shoot development. to investigate the metabolomic variation during the albescent and re-greening stages, gas chromatography-mass spectrometry combined with multivariate analysis were applied to analyze the metabolite profiles in the different color stages during the develop ... | 2015 | 26444680 |
| tea consumption and cognitive impairment: a cross-sectional study among chinese elderly. | laboratorial and epidemiological researches suggested that tea exhibited potential neuroprotective effect which may prevent cognitive impairment, but there were few data among the elderly aged 60 years and above in china. | 2015 | 26359663 |
| black tea consumption and risk of skin cancer: an 11-year prospective study. | tea consumption has been shown to protect against skin carcinogenesis in laboratory-based studies; however, epidemiological evidence is limited and inconsistent. this prospective study examined the association between black tea consumption and the incidence of basal cell carcinoma (bcc) and squamous cell carcinoma (scc). usual black tea consumption was estimated from food frequency questionnaires completed in 1992, 1994, and 1996 by 1,325 australian adults. all histologically confirmed skin canc ... | 2015 | 26359536 |
| multiresidue determination of pesticides in tea by gas chromatography-tandem mass spectrometry. | an efficient and reliable gc-ms/ms method for the multiresidue determination of pesticides in tea was developed by modifying the japanese official multiresidue method. sample preparation was carefully optimized for the efficient removal of coextracted matrix components. the optimal sample preparation procedure involved swelling of the sample in water; extraction with acetonitrile; removal of water by salting-out; and sequential cleanup by ods, graphitized carbon black/primary secondary amine (gc ... | 2015 | 26357887 |
| towards biological plausibility of electronic noses: a spiking neural network based approach for tea odour classification. | the paper presents a novel encoding scheme for neuronal code generation for odour recognition using an electronic nose (en). this scheme is based on channel encoding using multiple gaussian receptive fields superimposed over the temporal en responses. the encoded data is further applied to a spiking neural network (snn) for pattern classification. two forms of snn, a back-propagation based spikeprop and a dynamic evolving snn are used to learn the encoded responses. the effects of information en ... | 2015 | 26356597 |
| the acute effects of green tea and carbohydrate coingestion on systemic inflammation and oxidative stress during sprint cycling. | green tea (camellia sinensis) has anti-oxidative and anti-inflammatory effects, which may be beneficial to athletes performing high-intensity exercise. this study investigated the effects of carbohydrate and green tea coingestion on sprint cycling performance and associated oxidative stress and immunoendocrine responses to exercise. in a crossover design, 9 well-trained male cyclists completed 3 sets of 8 repetitions of 100-m uphill sprint cycling while ingesting green tea and carbohydrate (tea) ... | 2015 | 26319564 |
| ca(2+) and cam are involved in al(3+) pretreatment-promoted fluoride accumulation in tea plants (camellia sinesis l.). | tea plant (camellia sinensis (l.) o. kuntze) is known to be a fluoride (f) and aluminum (al(3+)) hyper-accumulator. previous study showed that pre-treatment of al(3+) caused a significant increase of f accumulation in tea plants. however, less is known about the intricate network of al(3+) promoted f accumulation in tea plants. in this study, the involvement of endogenous ca(2+) and cam in al(3+) pretreatment-promoted f accumulation in tea plants was investigated. our results showed that al(3+) ... | 2015 | 26318146 |
| green tea component egcg, insulin and igf-1 promote nuclear efflux of atrophy-associated transcription factor foxo1 in skeletal muscle fibers. | prevention and slowing of skeletal muscle atrophy with nutritional approaches offers the potential to provide far-reaching improvements in the quality of life for our increasingly aging population. here we show that polyphenol flavonoid epigallocatechin 3-gallate (egcg), found in the popular beverage green tea (camellia sinensis), demonstrates similar effects to the endogenous hormones insulin-like growth factor 1 (igf-1) and insulin in the ability to suppress action of the atrophy-promoting tra ... | 2015 | 26344776 |
| pantoea theicola sp. nov., isolated from black tea. | a gram-negative, facultatively anaerobic strain was isolated from black tea. on the basis of 16s rrna gene sequence similarity comparisons, strain qc88-366t was grouped into the genus pantoea, being related most closely to the type strains of pantoea gaviniae (98.5 %) and pantoea calida (98.3 %); sequence similarities were ≤ 97.0 % to the type strains of other species of the genus pantoea. multilocus sequence analysis based on partial sequences of the gyrb, rpob, infb and atpd genes also reveale ... | 2015 | 26297578 |
| re: randomized clinical trial of brewed green and black tea in men with prostate cancer prior to prostatectomy. | 2015 | 26292860 | |
| transcriptome-based discovery of ap2/erf transcription factors related to temperature stress in tea plant (camellia sinensis). | tea plant (camellia sinensis) is an important natural resource for the global supply of non-alcoholic beverage production. the extension of tea plant cultivation is challenged by biotic and abiotic stresses. transcription factors (tfs) of the apetala 2 (ap2)/ethylene-responsive factor (erf) family are involved in growth and anti-stresses through multifaceted transcriptional regulation in plants. this study comprehensively analyzed ap2/erf family tfs from c. sinensis on the basis of the transcrip ... | 2015 | 26233577 |
| extraction kinetics of phytochemicals and antioxidant activity during black tea (camellia sinensis l.) brewing. | tea is the most consumed beverage in the world which is second only to water. tea contains a broad spectrum of active ingredients which are responsible for its health benefits. the composition of constituents extracted to the tea brew depends on the method of preparation for its consumption. the objective of this study was to investigate the extraction kinetics of phenolic compounds, gallic acid, caffeine and catechins and the variation of antioxidant activity with time after tea brew is made. | 2015 | 26226943 |
| global transcriptome and gene regulation network for secondary metabolite biosynthesis of tea plant (camellia sinensis). | major secondary metabolites, including flavonoids, caffeine, and theanine, are important components of tea products and are closely related to the taste, flavor, and health benefits of tea. secondary metabolite biosynthesis in camellia sinensis is differentially regulated in different tissues during growth and development. until now, little was known about the expression patterns of genes involved in secondary metabolic pathways or their regulatory mechanisms. this study aimed to generate expres ... | 2015 | 26220550 |
| does enzymatic hydrolysis of glycosidically bound volatile compounds really contribute to the formation of volatile compounds during the oolong tea manufacturing process? | it was generally thought that aroma of oolong tea resulted from hydrolysis of glycosidically bound volatiles (gbvs). in this study, most gbvs showed no reduction during the oolong tea manufacturing process. β-glycosidases either at protein or gene level were not activated during the manufacturing process. subcellular localization of β-primeverosidase provided evidence that β-primeverosidase was located in the leaf cell wall. the cell wall remained intact during the enzyme-active manufacturing pr ... | 2015 | 26212085 |
| identification and quantification of 1,3-dimethylbutylamine (dmba) from camellia sinensis tea leaves and dietary supplements. | 1,3-dimethylbutylamine (dmba), is a cns stimulant, which has recently been identified in multiple dietary supplements and sometimes labeled as a natural constituent of pouchung tea. dmba is an homologue of 1,3-dimethylamylamine (dmaa) which the us food and drug administration has attempted to remove from all dietary supplements after dmaa consumption was linked to strokes, heart disease, and sudden death. to address questions concerning the natural origin of dmba, three independent analytical me ... | 2015 | 26209774 |
| determinations for pesticides on black, green, oolong, and white teas by gas chromatography triple-quadrupole mass spectrometry. | black, green, white, and oolong teas, all derived from leaves of camellia sinensis, are widely consumed throughout the world and represent a significant part of the beverages consumed by americans. a gas chromatography-triple quadrupole-based method, previously validated for pesticides on dried botanical dietary supplements, including green tea, was used to measure pesticides fortified into black and green teas at 10, 25, 100, and 500 μg/kg. teas from 18 vendors of tea products were then surveye ... | 2015 | 26209005 |
| tea consumption and mortality of all cancers, cvd and all causes: a meta-analysis of eighteen prospective cohort studies. | epidemiological studies have demonstrated inconsistent associations between tea consumption and mortality of all cancers, cvd and all causes. to obtain quantitative overall estimates, we conducted a dose-response meta-analysis of prospective cohort studies. a literature search in pubmed and embase up to april 2015 was conducted for all relevant papers published. random-effects models were used to calculate pooled relative risks (rr) with 95 % ci. in eighteen prospective studies, there were 12 22 ... | 2015 | 26202661 |
| purple tea and its extract suppress diet-induced fat accumulation in mice and human subjects by inhibiting fat absorption and enhancing hepatic carnitine palmitoyltransferase expression. | a number of clinical trials have been completed using green tea and black tea to investigate their effect in controlling weight in overweight adults. the results of these investigations, however, have often been contradictory, with some trials reporting positive effects of tea supplementation and some trials reporting no effect. as a result, the use of these teas for weight loss is controversial. purple tea is a variety of green tea developed in kenya (called trfk306), which in addition to certa ... | 2015 | 26199579 |
| separation of polyphenols and caffeine from the acetone extract of fermented tea leaves (camellia sinensis) using high-performance countercurrent chromatography. | leaves from camellia sienensis are a popular natural source of various beverage worldwide, and contain caffeine and polyphenols derived from catechin analogues. in the current study, caffeine (caf, 1) and three tea polyphenols including (-)-epigallocatechin 3-o-gallate (egcg, 2), (-)-gallocatechin 3-o-gallate (gcg, 3), and (-)-epicatechin 3-o-gallate (ecg, 4) were isolated and purified by flow-rate gradient high-performance countercurrent chromatography (hpccc) using a two-phase solvent system c ... | 2015 | 26197310 |
| effects of cinnamon, cardamom, saffron, and ginger consumption on markers of glycemic control, lipid profile, oxidative stress, and inflammation in type 2 diabetes patients. | type 2 diabetes (t2d) may be caused by elevated oxidative stress, inflammation, and hyperglycemia. the phytochemicals in several herbal medicines are reported to effectively improve diabetes and to ameliorate diabetic complications. the aim of the present study was to determine the effects of cinnamon, cardamom, saffron, and ginger as supplementary remedies in t2d. | 2015 | 26177486 |
| neuroprotective properties of the standardized extract from camellia sinensis (green tea) and its main bioactive components, epicatechin and epigallocatechin gallate, in the 6-ohda model of parkinson's disease. | camellia sinensis (green tea) is largely consumed, mainly in asia. it possesses several biological effects such as antioxidant and anti-inflammatory properties. the objectives were to investigate the neuroprotective actions of the standardized extract (cs), epicatechin (ec) and epigallocatechin gallate (egcg), on a model of parkinson's disease. male wistar rats were divided into so (sham-operated controls), untreated 6-ohda-lesioned and 6-ohda-lesioned treated for 2 weeks with cs (25, 50, or 100 ... | 2015 | 26167188 |
| synergistic anticancer activity of biologicals from green and black tea on du 145 human prostate cancer cells. | there is considerable interest in the potential of botanicals in preventing and/or alleviating chronic ailments. among the most studied botanicals are compounds present in green and black teas. nontoxic tea polyphenols are potent antioxidants, and they also modulate several signalling pathways and inhibit proteins such as mmp-9 or protein plasminogen activator system, making them very attractive potential therapeutics. one criticism of the prophylactic or therapeutic use of green or black tea po ... | 2015 | 26155176 |
| green tea yogurt: major phenolic compounds and microbial growth. | the purpose of this study was to evaluate fermentation of milk in the presence of green tea (camellia sinensis) with respect to changes in antioxidant activity, phenolic compounds and the growth of lactic acid bacteria. pasteurized full fat cow's milk and starter culture were incubated at 41 °c in the presence of two different types of green tea extracts. the yogurts formed were refrigerated (4 °c) for further analysis. the total phenolic content was highest (p < 0.05) in air-dried green tea-yog ... | 2015 | 26139940 |
| evaluation of antioxidant interactions in combined extracts of green tea (camellia sinensis), rosemary (rosmarinus officinalis) and oak fruit (quercus branti). | green tea (camellia sinensis), rosemary (rosmarinus officinalis) and oak fruit (quercus branti) are of known medicinal plants used in traditional medicine. they provide substantial antioxidant activities but the possible antioxidant interaction between them has not been studied. in the present study first the bioactive compounds from these three plants were first extracted and thereafter assayed for total phenols, 2, 2-diphenyl-1- picrylhydrazyl (dpph) radical scavenging activity, total antioxid ... | 2015 | 26139926 |
| myocardial potency of bio-tea against isoproterenol induced myocardial damage in rats. | kombucha (bio-tea) is a beverage produced by the fermentation of sugared black tea using a symbiotic association of bacteria and yeasts. traditional claims about kombucha report beneficial effects such as antibiotic properties, gastric regulation, relief from joint rheumatism and positive influence on the cholesterol level, arteriosclerosis, diabetes, and aging problems. the present investigation was carried out to understand the preventive effect of kombucha on heart weight, blood glucose, tota ... | 2015 | 26139916 |
| high-throughput screening of vitamins and natural antioxidants in nutraceuticals from green tea extracts by liquid chromatography coupled to quadrupole orbitrap mass spectrometry. | a new analytical method was developed and validated for simultaneous analysis of 52 vitamins and natural antioxidants in nutraceutical products obtained from green tea (camellia sinensis) extracts. the automated extraction procedure was achieved in a simple disposable pipet extraction. ultra-high performance liquid chromatography and electrospray ionization quadrupole-orbitrap high-resolution mass spectrometry (uhplc q-orbitrap) was used for the separation and detection of all the analytes. the ... | 2015 | 26138600 |
| [rapid and dynamic determination models of amino acids and catechins concentrations during the processing procedures of keemun black tea]. | tea is one of the most popular beverages in the world. for the contribution to the taste and healthy functions of tea, amino acids and catechins are important components. among different kinds of black teas in the world, keemun black tea has the famous and specific fragrance, "keemun aroma". during the processing procedure of keemun black tea, the contents of amino acids and catechins changed greatly, and the differences of these concentrations during processing varied significantly. however, a ... | 2015 | 26964222 |
| [nutrition as a possible risk factor for breast cancer]. | nutrition is an important biological factor, which affects largely on the development of the all functions of the human body. there is known association of the appearance of breast cancer with alimentary factors: inadequate consumption of fruits, vegetables, dairy products, excessive consumption of coffee, tea, sugar, salt, bread, fatty foods, overweight, early age of onset and frequent alcohol consumption. | 2015 | 26856173 |
| transcriptomic analysis of camellia ptilophylla and identification of genes associated with flavonoid and caffeine biosynthesis. | camellia ptilophylla, or cocoa tea, is naturally decaffeinated and its predominant catechins and purine alkaloids are trans-catechins and theobromine regular tea [camellia sinensis (l.) o. ktze.] is evolutionarily close to cocoa tea and produces cis-catechins and caffeine. here, the transcriptome of c. ptilophylla was sequenced using the 101-bp paired-end technique. the quality of the raw data was assessed to yield 70,227,953 cleaned reads totaling 7.09 gbp, which were assembled de novo into 56, ... | 2015 | 26782523 |
| [aging process of puer black tea studied by ftir spectroscopy combined with curve-fitting analysis]. | for better determination of the chemical components in the puer black tea, fourier transform infrared spectroscopy was used for obtaining vibrational spectra of puer black tea at different aging time. fourier transform infrared (ftir) spectra indicated that the chemical components had change in puer black tea at different aging time. the leaf of puer black tea was a complex system, its fourier transform infrared spectrum showed a total overlap of each absorption spectrum of various components. e ... | 2015 | 26717740 |
| natural antimicrobials and oral microorganisms: a systematic review on herbal interventions for the eradication of multispecies oral biofilms. | oral diseases such as caries and periodontitis are mainly caused by microbial biofilms. antibiotic therapy has reached its limits with regard to antimicrobial resistance, and new therapeutic measures utilizing natural phytochemicals are currently a focus of research. hence, this systematic review provides a critical presentation of the antimicrobial effects of various medicinal herbs against in vitro, ex vivo, and in situ formed multispecies oral biofilms. searches were performed in three englis ... | 2015 | 26834707 |
| [determination of flavonol glycosides in tea samples by ultra-high performance liquid chromatography-photodiode array detection-tandem mass spectrometry]. | an ultra-high performance liquid chromatography-photodiode array detection-tandem mass spectrometry (uplc-pda-ms/ms) method was developed for the determination of flavonol glycosides in tea samples. the chromatographic separation was performed on an uplc hss t3 column by gradient elution with the mobile phases of acetonitrile and water both containing 0.1% (v/v) formic acid. a total of 15 flavonol glycosides which include 3 myricetin glycosides, 6 quercetin glycosides and 6 kaempferol glycosides ... | 2015 | 26753286 |
| shu wang. | my favorite drink is chinese black tea. my favorite reaction is natural dna synthesis. | 2015 | 26681497 |
| antioxidant activity and phenolic content of leaf infusions of myrtaceae species from cerrado (brazilian savanna). | there is considerable interest in identifying new antioxidants from plant materials. several studies have emphasized the antioxidant activity of species belonging to the myrtaceae family. however, there are few reports on these species from the cerrado (brazilian savanna). in this study, the antioxidant activity and phenolic content of 12 native myrtaceae species from the cerrado were evaluated (blepharocalyx salicifolius, eugenia bimarginata, eugenia dysenterica, eugenia klotzschiana, hexachlam ... | 2015 | 26675912 |
| regular consumption of black tea increases circulating kynurenine concentrations: a randomized controlled trial. | circulating neopterin and the ratio of kynurenine to tryptophan (kyn/trp) concentrations are biomarkers of immune activation that have been linked to cardiovascular and total mortality. several in vitro studies indicated that tea flavonoids and other antioxidants can modulate tryptophan breakdown rates and neopterin production in immune cells. we aimed to assess the effects of regular black tea consumption on tryptophan and neopterin metabolisms in vivo. | 2015 | 26673554 |
| eriophyoid mites (acari, eriophyoidea) associated with tea plants, with descriptions of a new genus and two new species. | a new genus and two new species of mites in the family eriophyidae, theaphyes rapaneae gen. n. and sp. n. which is found on the type host rapanea neriifolia (sieb. et zucc.) mez (myrsinaceae) and paracaphyllisa theacea sp. n., are described and illustrated. they are vagrants on the tea plant camellia sinensis (l.) kuntze and no apparent symptoms were detected. a key to the eriophyoid mites including thirteen species associated with tea plants all over the world is provided. | 2015 | 26668544 |
| mutagenicity assessment of drinking water in combination with flavored black tea bags: a cross sectional study in tehran. | diseases related to water impurities may present as major public health burdens. the present study aimed to assess the mutagenicity of drinking water from different zones of tehran, and evaluate possible health risks through making tea with tea bags, by ames mutagenicity test using ta 100, ta 98 and yg1029 strains. for this purpose, 450 water samples were collected over the period of july to december 2014 from 5 different zones of tehran. except for one sample, no mutagenic potential was detecte ... | 2015 | 26625748 |
| effects of tannic acid, green tea and red wine on herg channels expressed in hek293 cells. | tannic acid presents in varying concentrations in plant foods, and in relatively high concentrations in green teas and red wines. human ether-à-go-go-related gene (herg) channels expressed in multiple tissues (e.g. heart, neurons, smooth muscle and cancer cells), and play important roles in modulating cardiac action potential repolarization and tumor cell biology. the present study investigated the effects of tannic acid, green teas and red wines on herg currents. the effects of tannic acid, tea ... | 2015 | 26625122 |
| bioactive constituents of wood rot extract of tea, camellia sinensis l.o. kuntze against alates of low country live wood termite glyptotermes dilatatus bugnion and popoff (isoptera: kalotermitidae). | low country live wood termite (lclwt), glyptotermes dilatatus is attractive to rotted stumps of tea plant, camellia sinensis. rotted stumps are formed due to the attack of wood rot fungi in pruned stems. the objective of the present study was to investigate the response of lclwt to extracts of rotted and healthy stems of susceptible tea cultivars, tri 2023 and tri 4042 and tolerant cultivars, tri 2027 and tri 4049 and isolate the lclwt attractive fractions of tea stem extract. since pieces of ro ... | 2015 | 26618100 |
| extraction, partial purification and determination of some biochemical properties of β-glucosidase from tea leaves (camellia sinensis l.). | this research was carried out to determine biochemical properties of β-glucosidase (β-d-glucoside glucohydrolase, ec 3.2.1.21) isolated from turkish tea leaves. two protein peaks containing β-glucosidase activity were recovered and characterized, which were denoted as isoenzyme a and isoenzyme b. their ph optimum, thermal resistances, affinity towards p-nitrophenyl-β-d-glucopyranoside differed markedly. they both displayed maximal activity at ph 5.0. the effects of the inhibitors tested varied i ... | 2015 | 26604410 |
| effects of alternative steeping methods on composition, antioxidant property and colour of green, black and oolong tea infusions. | cold water steeping is reported to maximise tea health benefits, but requires long infusion time. in this work, the employment of a brief hot infusion step followed by ice addition was evaluated. the comparison of this innovative method with hot and cold steeping was investigated on green, black and oolong teas. catechins, xanthines and gallic acid content, antioxidant power, total phenolics and colour analysis were evaluated. hot infusion shown rapid extractive power, but relevant compound degr ... | 2015 | 26604404 |
| spatial variability of theaflavins and thearubigins fractions and their impact on black tea quality. | the spatial distribution of theaflavin and thearubigin fractions and their impact on black tea quality were investigated using multivariate and geostatistics techniques. black tea samples were collected from tea gardens of six geographical regions of assam and west bengal, india. total theaflavin (tf) and its four fractions of upper assam, south bank and north bank teas were higher than the other regions. simple theaflavin showed highest significant correlation with tasters' quality. low molecul ... | 2015 | 26604370 |
| white tea (camellia sinensis) inhibits proliferation of the colon cancer cell line, ht-29, activates caspases and protects dna of normal cells against oxidative damage. | tea (camellia sinensis) is one of the most consumed beverages in the world. white tea is made from the buds and young leaves of the tea plant which are steamed and dried, whilst undergoing minimal oxidation. the mtt assay was used to test the extract on the effect of the proliferation of the colorectal cancer cell line, ht-29. the extract inhibited the proliferation of ht-29 cells with an ic50 of 87μg/ml. the extract increased the levels of caspase-3, -8, and -9 activity in the cells. dna damage ... | 2015 | 25236244 |
| simulated gastrointestinal digestion, intestinal permeation and plasma protein interaction of white, green, and black tea polyphenols. | the gastrointestinal digestion, intestinal permeation, and plasma protein interaction of polyphenols from a single tea cultivar at different stages of processing (white, green, and black teas) were simulated. the salivary phase contained 74.8-99.5% of native polyphenols, suggesting potential bioavailability of significant amounts of antioxidants through the oral mucosal epithelium that might be gastric sensitive and/or poorly absorbed in the intestine. white tea had the highest content and provi ... | 2015 | 25236233 |
| adverse effects of plant food supplements and botanical preparations: a systematic review with critical evaluation of causality. | the objective of this review was to collect available data on the following: (i) adverse effects observed in humans from the intake of plant food supplements or botanical preparations; (ii) the misidentification of poisonous plants; and (iii) interactions between plant food supplements/botanicals and conventional drugs or nutrients. | 2015 | 25251944 |
| effect of black tea intake on blood cholesterol concentrations in individuals with mild hypercholesterolemia: a diet-controlled randomized trial. | habitual intake of black tea has been associated with relatively lower serum cholesterol concentrations in observational studies. however, clinical trial results evaluating the effects of black tea on serum cholesterol have been inconsistent. several factors could explain these mixed results, in particular, uncontrolled confounding caused by lifestyle factors (eg, diet). this diet-controlled clinical trial estimates the effect of black tea flavonoid consumption on cholesterol concentrations in 5 ... | 2015 | 25266246 |
| in vitro study of color stability of polycrystalline and monocrystalline ceramic brackets. | the aim of this in vitro study was to analyze color stability of monocrystalline and polycrystalline ceramic brackets after immersion in dye solutions. | 2015 | 25279530 |
| changes of major tea polyphenols and production of four new b-ring fission metabolites of catechins from post-fermented jing-wei fu brick tea. | hplc analysis of samples from four major fermentation procedures of jing-wei fu brick tea showed that the level of major tea catechins epigallocatechin gallate (egcg) and epicatechin gallate (ecg) dropped increasingly to about 1/3 in the final product. phytochemical study of the final product led to the discovery of four new b-ring fission metabolites of catechins (brfcs) fuzhuanin c-f (1-4) together with three known brfcs (5-7), six known catechins (8-13), five simple phenols (14-18), seven fla ... | 2015 | 25306324 |
| tea consumption and the incidence of cancer: a systematic review and meta-analysis of prospective observational studies. | the aim of this study was to summarize the current evidence on the strength of associations between tea consumption and the incidence of cancer at different sites. we searched pubmed, embase and the cochrane library for relevant articles published before october 2013. prospective studies that reported effect estimates of cancer incidence, with 95% confidence intervals (cis), for more than two categories of tea consumption were included. we analysed 87 datasets (57 articles), which included a tot ... | 2015 | 25370683 |
| the combined use of camellia sinensis and metronomic zoledronic acid in a breast cancer-induced osteolysis mouse model. | in previous studies, we demonstrated that green tea (camellia sinensis, cs) water extract had potent anti-tumor and anti-metastasis effects in the 4t1 mouse breast cancer xenograft model, and the metronomic regimen (0.0125 mg/kg twice a week for 4 weeks) of zoledronic acid (zol) was also effective in decreasing tumor burden and metastasis when compared with the conventional regimen. this study aimed to investigate the combined use of cs water extract and metronomic zol against tumor metastasis a ... | 2015 | 25431338 |
| the anti-obesity effect of green tea polysaccharides, polyphenols and caffeine in rats fed with a high-fat diet. | beneficial effects of green tea (camellia sinensis, theaceae) extracts against obesity have been reported; however, the anti-obesity ability of the major components of green tea, polysaccharides, polyphenols and caffeine is not clear. therefore, experiments with total green tea extracts, polyphenols, polysaccharides, caffeine, and a complex of polysaccharide and polyphenol at a dose of 400 or 800 mg kg⁻¹ were conducted on high-fat diet fed rats for 6 weeks to investigate their anti-obesity effec ... | 2015 | 25431018 |
| uncontrolled diabetes mellitus: prevalence and risk factors among people with type 2 diabetes mellitus in an urban district of karachi, pakistan. | this study aimed to explore the prevalence of, and factors associated with, uncontrolled diabetes mellitus (udm) in a community setting in pakistan. | 2015 | 25451895 |
| simultaneous determination of 15 phenolic compounds and caffeine in teas and mate using rp-hplc/uv detection: method development and optimization of extraction process. | a reversed-phase high performance liquid chromatographic coupled to ultraviolet detection (rp-hplc/uv) method was developed for simultaneous determination of 15 phenolic compounds and caffeine in teas (green tea, oolong tea, black tea and mate). furthermore, the extraction process of total phenolic contents (tpc) from teas were optimized using response surface methodology (rsm) based on a central composite design (ccd) and then applied to extraction of teas. the best conditions obtained using th ... | 2015 | 25442580 |
| comparative characterisation of green tea and black tea cream: physicochemical and phytochemical nature. | tea cream is prevalent in various types of tea, yet a comparison of the mechanism of creaming in different teas remains uncertain. here, we compared physicochemical characteristics, phytochemical composition, and simulated digestive profiles of green tea and black tea cream, looking to exploit their concentration and structure based mechanisms and in vitro bioaccessibility. green tea cream particles were roughly one order of magnitude larger than those of black tea in size. moreover, creaming co ... | 2015 | 25466042 |
| tea (camellia sinensis (l.)): a putative anticancer agent in bladder carcinoma? | the leaves of camellia sinensis (l.) are the source of tea, the second most consumed beverage worldwide. tea contains several chemical compounds such as polyphenols (mainly catechins), caffeine, theophylline, l-theanine, among many others. polyphenolic compounds are mainly responsible for its significant antioxidant properties and anticarcinogenic potential. bladder cancer is one of the most common types of cancer, and its progression and onset are thought to be controlled by dietary and lifesty ... | 2015 | 25482719 |
| study on column spe with synthesized graphene oxide and faas for determination of trace amount of co(ii) and ni(ii) ions in real samples. | a selective method for the preconcentration and separation of trace amounts of co(ii) and ni(ii) by column solid phase extraction has been developed. the method is based on the adsorption of metal ions as n-(5-methyl-2-hydroxyacetophenone)-n'-(2-hydroxyacetophenone) ethylene diamine (mhe) complex on synthesized graphene oxide. computational modeling based on pm6 semi-empirical potential energy surface was utilized to investigate the interaction of metallic complexes with graphene oxide sheet. th ... | 2015 | 25492179 |
| inhibitory effect of black tea and its combination with acarbose on small intestinal α-glucosidase activity. | it is said that black tea is effective against type 2 diabetes mellitus because it can help modulate postprandial hyperglycemia. however, the mechanism underlying its therapeutic and preventive effects on type 2 diabetes mellitus is unclear. in this study, we focused on the effect of black tea on the carbohydrate digestion and absorption process in the gastrointestinal tract. we examined whether black tea can modulate postprandial hyperglycemia. | 2015 | 25523370 |
| assessment of polyphenol coated nano zero valent iron for hexavalent chromium removal from contaminated waters. | alternative plant extracts were examined as raw materials for the synthesis of nzvi from ferric solutions. four plants were selected for evaluation, i.e. camellia sinensis (green tea, gt), syzygium aromaticum (clove, cl), mentha spicata (spearmint, sm) and punica granatum (pomegranate, pg). based on the results obtained, it was concluded that the reduction of fe(iii) with the herb extracts is not complete. using the gt extract, approximately 28 mm of the initial 66 mm of fe (42.4 %) are reduced ... | 2015 | 25512186 |
| metabolomic unveiling of a diverse range of green tea (camellia sinensis) metabolites dependent on geography. | numerous factors such as geographical origin, cultivar, climate, cultural practices, and manufacturing processes influence the chemical compositions of tea, in the same way as growing conditions and grape variety affect wine quality. however, the relationships between these factors and tea chemical compositions are not well understood. in this study, a new approach for non-targeted or global analysis, i.e., metabolomics, which is highly reproducible and statistically effective in analysing a div ... | 2015 | 25529705 |
| dietary pretreatment with green tea polyphenol, (-)-epigallocatechin-3-gallate reduces the bioavailability and hepatotoxicity of subsequent oral bolus doses of (-)-epigallocatechin-3-gallate. | human case-studies have reported an association between green tea-based dietary supplements and hepatotoxicity. studies have demonstrated the hepatotoxicity of high-dose oral bolus dosing with the tea polyphenol (-)-epigallocatechin-3-gallate (egcg) in mice and dogs. we examined the effect of pretreatment with dietary egcg on the hepatotoxicity and bioavailability of acute oral bolus dosing with egcg in cf-1 mice. egcg (750 mg/kg, i.g., once daily for 3 days) increased plasma alanine aminotransf ... | 2015 | 25528115 |
| effect of green tea (camellia sinensis l.) leaf extract on reproductive system of adult male albino rats. | green tea leaf extract (gtle), used in this experiment has shown great influence on male reproductive system functionally as well as morphologically. the extract was prepared according to the method of wei. h. et al. the extract was given to two different experimental animal groups with two different doses during 26 consecutive days. after treatment it was found that, the weight of the testis was markedly reduced instead of normal weight gain of all the animals. the sperm count and motility were ... | 2015 | 27073594 |
| randomized clinical trial of brewed green and black tea in men with prostate cancer prior to prostatectomy. | preclinical and epidemiologic studies suggest chemopreventive effects of green tea (gt) and black tea (bt) in prostate cancer. in the current study we determined the effect of gt and bt consumption on biomarkers related to prostate cancer development and progression. | 2015 | 25545744 |
| biochemical characterization and pharmacognostic evaluation of purified catechins in green tea (camellia sinensis) cultivars of india. | green tea (gt) is derived from the leaves of camellia sinensis implicated in a wide range of health attributes. in the present comprehensive study, methanolic, acetone and aqueous extract of leaves of c. sinensis var. sinensis [kashmir (kw), uttarakhand (ip & pn)] and c. sinensis var. assamica (assam, at) were explored for their phytoconstituents. solvent extracts of gt cultivars showed rich presence of phytoconstituents in comparison with aqueous extracts. the methanolic extract of at and aceto ... | 2015 | 28324294 |
| dietary intake of flavonoids and oesophageal and gastric cancer: incidence and survival in the united states of america (usa). | flavonoids, polyphenolic compounds concentrated in fruits and vegetables, have experimentally demonstrated chemopreventive effects against oesophageal and gastric cancer. few epidemiologic studies have examined flavonoid intake and incidence of these cancers, and none have considered survival. | 2015 | 25668011 |
| catechins in tea suppress the activity of cytochrome p450 1a1 through the aryl hydrocarbon receptor activation pathway in rat livers. | polycyclic aromatic hydrocarbons (pahs) and halogenated aromatic hydrocarbons (hahs) develop various adverse effects through activation of an aryl hydrocarbon receptor (ahr). the suppressive effects of brewed green tea and black tea on 3-methylcholanthrene (mc)-induced ahr activation and its downstream events were examined in the liver of rats. ad-libitum drinking of green tea and black tea suppressed mc-induced ahr activation and elevation of ethoxyresorufin o-deethylase activity in the liver, ... | 2015 | 25582180 |
| combined effects of added beta glucan and black tea in breads on starch functionality. | bread and tea are usually consumed separately, but there may be different food-matrix interactions and changes in starch characteristics when they are combined in bread. this study developed breads (white bread, wf; black tea, bt; beta glucan, βg; beta glucan plus black tea, βgbt) and determined their starch functionalities. breads were developed using a standard baking recipe and determined their starch characteristics. there was no significant difference in starch hydrolysis between bt and wf ... | 2015 | 25578762 |
| comparative profiling of gene expression in camellia sinensis l. cultivar anjibaicha leaves during periodic albinism. | the anjibaicha albino mutant tea cultivar has a reversible albino phenotype at low temperatures. albino anjibaicha leaves contain high levels of amino acids, which are important components affecting the quality of tea as a beverage. to examine the molecular mechanism of albinism and amino acid enrichment in anjibaicha, we used the amplified fragment length polymorphism (cdna-aflp) technique to isolate genes that are differentially expressed during periodic albinism in anjibaicha. a total of 127 ... | 2015 | 25576956 |
| small molecule-sensing strategy and techniques for understanding the functionality of green tea. | various low-molecular-weight phytochemicals in green tea (camellia sinensis l.), especially (-)-epigallocatechin-3-o-gallate (egcg), are known to be involved in health promotion and disease risk reduction. however, the underlying mechanism has remained elusive because of the absence of an analytical technique that can easily detect the precise behavior of such a small molecule. recently, we have identified a cell-surface egcg-sensing receptor and the related signaling molecules that control the ... | 2015 | 25561325 |
| report: effects of camellia sinensis l. (green tea) extract on the body and testicular weight changes in adult wistar rate. | this research was aimed to study the effects of oral administration of camellia sinensis l. on the testicular and body weights of adult wistar rats for short and long time periods. the adult wistar rats were divided into 3 groups (a, b and c). every group had ten rats. green tea extract 0.692% (w/v) was given to groups a and b on daily basis. the extracts were prepared fresh and given for a period of ten and thirty days, respectively, while distilled water was given to the group c rats only. the ... | 2015 | 25553702 |
| analysis of accumulation patterns and preliminary study on the condensation mechanism of proanthocyanidins in the tea plant [camellia sinensis]. | in the present study, proanthocyanidins were qualitatively and quantitatively identified using hydrolysis and thiolysis assays, np-hplc, hplc-esi-ms, maldi-tof-ms, (1)h-nmr, and (13)c-nmr techniques in different organs of tea plants. the results showed that in leaves, the tri-hydroxyl, cis- and galloylated flavan-3-ols were the main monomeric catechins units, and (epi)catechin was found to be the major unit of polymeric flavan-3-ols when the degree of polymerization was greater than five. in roo ... | 2015 | 25735226 |
| beverage habits and mortality in chinese adults. | there is limited research examining beverage habits, one of the most habitual dietary behaviors, with mortality risk. | 2015 | 25733477 |
| [biochemical processes at the stage of withering during black tea production]. | we determined the molecular weight and some properties of multiple forms of phenol oxidase from tea leaves and four other perennial plants. it was shown that multiple high- and low-molecular forms of phenol oxidase differed in substrate specificity. low-molecular forms of the enzyme mostly demonstrated hydroxylase activity, while high-molecular forms showed catechol oxidase activity. it was revealed that the withering stage of black tea production is accompanied by the formation of only high-mol ... | 2015 | 25707121 |
| polyphenolic rich traditional plants and teas improve lipid stability in food test systems. | the deleterious effects of lipid autoxidation are of major concern to the food industry and can be prevented by food antioxidants. in this vein, the phenolic contents and antioxidant potential of traditional plants of mauritius such as p. betle l. (piperaceae), m. koenigii l. sprengel. (rutaceae), o. gratissimum l. (lamiaceae), o. tenuiflorum l. (lamiaceae), and commercially available mauritian green and black teas were evaluated. their ferric reducing antioxidant power (frap) were compared to t ... | 2015 | 25694685 |
| statistical approaches to assess the association between phenolic compounds and the in vitro antioxidant activity of camellia sinensis and ilex paraguariensis teas. | tea presents a diverse phenolic composition which is responsible for its alleged biological activities, including the in vivo and in vitro antioxidant capacity. it is very usual to find researches applying statistical methods, such as analysis of variances (anova) and linear pearson correlation coefficients to analyze the strength of correlation between phenolic composition and the in vitro antioxidant activity of teas from camellia sinensis (green, black, white, oolong, red, and yellow teas) an ... | 2015 | 24918265 |
| histochemical evaluation of catechins in peg stressed transgenic tea plants using catechin-specific-diazotized sulfanilamide reagent. | we investigated the applicability of catechin-specific-reagent (csr) for histochemical evaluation of catechins. the diazotized arylamine moiety in csr reacts specifically with the a-ring of catechins to yield a golden yellow complex. this makes it highly specific for spectrophotometric quantification of catechins. therefore, microtome cut sections of untransformed and osmotin-expressing transgenic leaves and stem of tea were stained with csr. we found catechins in the form of golden yellow globu ... | 2015 | 25151989 |
| fractionation and identification of minor and aroma-active constituents in kangra orthodox black tea. | the aroma constituents of kangra orthodox black tea were isolated by simultaneous distillation extraction (sde), supercritical fluid extraction and beverage method. the aroma-active compounds were identified using gas chromatography-olfactometry-mass spectrometry. geraniol, linalool, (z/e)-linalool oxides, (e)-2-hexenal, phytol, β-ionone, hotrienol, methylpyrazine and methyl salicylate were major volatile constituents in all the extracts. minor volatile compounds in all the extracts were 2-ethyl ... | 2015 | 25148991 |
| extraction characteristics of subcritical water depending on the number of hydroxyl group in flavonols. | this study compared the efficiencies of using subcritical water, hot water, and organic solvents to extract flavonols from black tea, celery, and ginseng leaf. the effect of key operating conditions was determined by varying the temperature (110-200°c), extraction time (5-15min), and pressure (about 10mpa) and the extracts were analysed quantitatively using hplc. the yields of myricetin, quercetin, and kaempferol from plants were maximal at extraction temperatures of 170°c, 170°c and 200°c, resp ... | 2015 | 25172678 |
| black tea consumption and serum cholesterol concentration: systematic review and meta-analysis of randomized controlled trials. | the results of randomized controlled trials in relation to the effect of regular black tea consumption on serum cholesterol concentration were inconsistent. we aimed to investigate and quantify the effect of black tea consumption on serum concentrations of total, ldl and hdl cholesterol. | 2015 | 24972454 |
| accuracy of surgical wound drainage measurements: an analysis and comparison. | surgical drain tube readings can influence the clinical management of the post-operative patient. the accuracy of these readings has not been documented in the current literature and this experimental study aims to address this paucity. | 2015 | 24891212 |
| effect of camellia sinensis supplementation and increasing holding time on quality of cryopreserved boar semen. | cryopreservation of boar semen is still considered suboptimal due to the low fertility when compared with fresh semen. this study was performed to evaluate the effects of green tea (camellia sinensis) supplementation of the freezing extender at different concentration (0, 2.5%, 5%, 10%) and also to determine the influence of increasing holding time from 2 to 24 h at 15 °c. seventeen ejaculates from nine boars were used to make pools of three of them and then cryopreserved. sperm motility, viabil ... | 2015 | 24909203 |
| tea and its consumption: benefits and risks. | the recent convention of introducing phytochemicals to support the immune system or combat diseases is a centuries' old tradition. nutritional support is an emerging advancement in the domain of diet-based therapies; tea and its constituents are one of the significant components of these strategies to maintain the health and reduce the risk of various malignancies. tea is the most frequently consumed beverage worldwide, besides water. all the three most popular types of tea, green (unfermented), ... | 2015 | 24915350 |