Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
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| in vitro antimicrobial activities against cariogenic streptococci and their antioxidant capacities: a comparative study of green tea versus different herbs. | the antimicrobial activity against cariogenic bacteria, total antioxidant capacity and phenolic constituents of methanolic extracts from 11 herbs were investigated and compared with those of green tea (camellia sinensis). among the 12 tested herbs, eight herbal extracts could inhibit the growth of streptococcus sanguinis. jasmine, jiaogulan, and lemongrass were the most potent, with minimum inhibitory concentrations (mic) of 1mg/ml, while green tea was less effective, with a mic of 4mg/ml. among ... | 2008 | 26047271 |
| chemopreventive opportunities to control basal cell carcinoma: current perspectives. | basal cell carcinoma (bcc) is a major health problem with approximately 2.8 million new cases diagnosed each year in the united states. bcc incidences have continued to rise due to lack of effective chemopreventive options. one of the key molecular characteristics of bcc is the sustained activation of hedgehog signaling through inactivating mutations in the tumor suppressor gene patch (ptch) or activating mutations in smoothened. in the past, several studies have addressed targeting the activate ... | 2015 | 26053157 |
| discrimination of teas with different degrees of fermentation by spme-gc analysis of the characteristic volatile flavour compounds. | as tea is traded all over the world, it is necessary for both customs officers and business investigators to develop an easy and reliable method to discriminate teas from each other. a total of 56 kinds of various green, oolong, and black teas were collected from different countries and markets, and their catechin contents and volatile flavour compounds (vfc) were compared by analyses, using hplc and solid-phase microextraction-gas chromatograph (spme-gc). it was found that neither total catechi ... | 2008 | 26054281 |
| changes in free-radical scavenging ability of kombucha tea during fermentation. | kombucha tea is a fermented tea beverage produced by fermenting sugared black tea with tea fungus (kombucha). free-radical scavenging abilities of kombucha tea prepared from green tea (gtk), black tea (btk) and tea waste material (twk) along with ph, phenolic compounds and reducing power were investigated during fermentation period. phenolic compounds, scavenging activity on dpph radical, superoxide radical (xanthine-xanthine oxidase system) and inhibitory activity against hydroxyl radical media ... | 2008 | 26054285 |
| occurrence and de novo biosynthesis of caffeine and theanine in seedlings of tea (camellia sinensis). | caffeine (1,3,7-trimethyl xanthine) and theanine (γ-glutamyl-l-ethylamide) are the major nitrogen-containing secondary metabolites in tea leaves. the aim of the present study was to elucidate the relative concentration and amounts of these compounds and the de novo biosynthetic activity in different parts of tea seedlings grown for 27-, 106- and 205 days. the results indicated that caffeine and its biosynthetic activity occur only in leaves and stems, while theanine is distributed in all organs, ... | 2015 | 26058139 |
| low caffeine content in novel grafted tea with camellia sinensis as scions and camellia oleifera as stocks. | caffeine, a purine alkaloid, is a major secondary metabolite in tea leaves. the demand for low caffeine tea is increasing in recent years, especially for health reasons. we report a novel grafted tea material with low caffeine content. the grafted tea plant had camellia sinensis as scions and c. oleifera as stocks. the content of purine alkaloids was determined in the leaves of one-year-old grafted tea plants by hplc. we also characterized caffeine synthase (cs), a key enzyme involved in caffein ... | 2015 | 26058159 |
| occurrence, biosynthesis and metabolism of theanine (γ-glutamyl-l-ethylamide) in plants: a comprehensive review. | theanine (γ-glutamyl-l-ethylamide) is the most abundant non-protein amino acid in tea leaves. in addition to camellia sinensis, theanine occurs in several plants belonging to the ericales. biosynthesis of theanine from glutamic acid and ethylamine by theanine synthetase is present in all organs of tea seedlings, but roots are the major site of theanine biosynthesis in adult tea trees. theanine is transported from roots to young leaves via the xylem sap. theanine is hydrolysed to glutamic acid an ... | 2015 | 26058162 |
| determination of polycyclic aromatic hydrocarbons in dry tea. | twenty-eight different tea samples sold in the united states were evaluated using high-performance liquid chromatography (hplc) with fluorescence detection (fld) for their contamination with polycyclic aromatic hydrocarbons (pahs). many pahs exhibit carcinogenic, mutagenic, and teratogenic properties and have been related to several kinds of cancer in man and experimental animals. the presence of pahs in environmental samples such as water, sediments, and particulate air has been extensively stu ... | 2015 | 26065515 |
| effect of sucrose concentration on the products of kombucha fermentation on molasses. | fermentation of 1.5g/l of indian black tea, sweetened with adequate quantities of molasses (containing approx. 70g/l, 50g/l and 35g/l of sucrose), was conducted using domestic kombucha. inoculation was performed with 10% of fermentation broth from a previous process. the fermentation in cylindrical vessels containing 2l of liquid phase, was carried out at 22±1°c for 14 days, with periodical sampling, to measure ph, content of acids (total, acetic and l-lactic), content of remaining sucrose, and ... | 2008 | 26065754 |
| differential expression of genes in purple-shoot tea tender leaves and mature leaves during leaf growth. | tea (camellia sinensis l.), contains high levels of secondary metabolic products with both commercial and medicinal value. at present, most cultivated tea plant have green leaves; although tea plants with purple leaves exist, their supply is inadequate. during leaf growth and maturation, the content of secondary metabolic compounds decreases, resulting in higher content in tender purple leaves (tpl), and lower content in mature green leaves (mgl). the aim of this study was to analyze the differe ... | 2016 | 26084622 |
| determination of aluminum and zinc in infusion tea cultivated in north of iran. | to determine aluminum and zinc levels in black tea cultivated in north of iran, 105 black tea samples were collected from the tea growing regions of guilan and mazandaran provinces and were analyzed for al and zn concentration of tea infusion. contents of all elements were analyzed three times separately by using an inductively coupled plasma atomic emission spectrometry (icp - aes). the solubility of al and zn in infusions at 5, 15 and 60 min with boiling water showed that the mean level of al ... | 2015 | 26085934 |
| association between dietary pattern and risk of cardiovascular disease among adults in the middle east and north africa region: a systematic review. | this paper reviews the evidence related to the association of dietary pattern with coronary heart disease (chd), strokes, and the associated risk factors among adults in the middle east and north africa (mena) region. | 2015 | 26088003 |
| tea polyphenols in parkinson's disease. | parkinson's disease (pd) is a common motor neurodegenerative disorder with multifactorial etiology that is an increasing burden on our aging society. pd is characterized by nigrostriatal degeneration which might involve oxidative stress, α-synuclein (αs) aggregation, dysregulation of redox metal homeostasis and neurotoxicity. although the exact cause remains unknown, both genetic and environmental factors have been implicated. among the various environmental factors tea consumption has attracted ... | 2015 | 26092629 |
| a comparative proteomic analysis of the buds and the young expanding leaves of the tea plant (camellia sinensis l.). | tea (camellia sinensis l.) is a perennial woody plant that is widely cultivated to produce a popular non-alcoholic beverage; this beverage has received much attention due to its pleasant flavor and bioactive ingredients, particularly several important secondary metabolites. due to the significant changes in the metabolite contents of the buds and the young expanding leaves of tea plants, high-performance liquid chromatography (hplc) analysis and isobaric tags for relative and absolute quantitati ... | 2015 | 26096006 |
| coffee and beverages are the major contributors to polyphenol consumption from food and beverages in japanese middle-aged women. | food and beverages rich in polyphenols have been shown to reduce the risk of non-communicable diseases. the present study estimated polyphenol levels and consumption from food and beverages in japanese women. randomly recruited housewives living in the area around tokyo (n 109; aged 21-56 years; group 1) recorded all beverages and foods they ingested for 7 d, and the total polyphenol (tp) consumption was estimated based on the tp content of each item measured with a modified folin-ciocalteu meth ... | 2014 | 26101616 |
| quantification of total polyphenols, catechin, caffeine, l-theanine, determination of antioxidant activity and effect on antileishmanial drugs of ethiopian tea leaves extracts. | in this study four tea samples gumero black, wushwush black and wushwush green from agri- ceft plc and east africa black tea leaves from east african agribusiness plc were investigated for total polyphenols, caffeine, catechin and l-theanine content. | 2015 | 26109792 |
| black tea extract improves anti-oxidant profile in experimental diabetic rats. | the purpose of this study was to investigate the in vivo anti-oxidant effect of black tea extract (bte) supplemented to normal and alloxan-induced diabetic rats. | 2015 | 26120044 |
| natural products for the treatment of type 2 diabetes mellitus. | type 2 diabetes mellitus is a metabolic disease characterized by persistent hyperglycemia. high blood sugar can produce long-term complications such as cardiovascular and renal disorders, retinopathy, and poor blood flow. its development can be prevented or delayed in people with impaired glucose tolerance by implementing lifestyle changes or the use of therapeutic agents. some of these drugs have been obtained from plants or have a microbial origin, such as galegine isolated from galega officin ... | 2015 | 26132858 |
| green tea, black tea consumption and risk of endometrial cancer: a systematic review and meta-analysis. | several studies have assessed the association between green and black tea consumption and the risk of endometrial cancer (ec) and have yielded inconsistent results. | 2016 | 26138307 |
| 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 |
| 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 |
| 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 |
| 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 |
| effects of green tea on escherichia coli as a uropathogen. | escherichia coli is the most common cause of urinary tract infections. the development of antibiotic resistance in e. coli is an important problem. finding alternative antimicrobial agents from plant extracts has received growing interest. camellia sinensis is a safe, nontoxic, cheap beverage that has been reported to have antimicrobial effects against various pathogenic bacteria including e. coli. polyphenolic components of green tea ( lǜ chá) have antibacterial activity. catechins also have sy ... | 2015 | 26151004 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| codon usage bias analysis for the spermidine synthase gene from camellia sinensis (l.) o. kuntze. | the spermidine synthase (spds) gene exists widely in all types of plants. in this paper, the codon usage of the spds gene from camellia sinensis (csspds) was analyzed. the results showed that the codon usage of the csspds gene is biased towards the t-ended or a-ended codons, which is similar to that observed in 73 genes selected from the c. sinensis genome. an enc-plot for 15 spds genes from various plant species suggested that mutational bias was the major factor in shaping codon usage in these ... | 2015 | 26214415 |
| 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 |
| 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 |
| 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 |
| thearubigins protect against acetaminophen-induced hepatic and renal injury in mice: biochemical, histopathological, immunohistochemical, and flow cytometry study. | acetaminophen toxicity is used as a model for studying chemical toxicity. n-acetylcysteine (nac) is used for the treatment of hepatotoxicity; however, there is no specific therapy for nephrotoxicity. | 2016 | 26234406 |
| comparing the antiplaque efficacy of 0.5% camellia sinensis extract, 0.05% sodium fluoride, and 0.2% chlorhexidine gluconate mouthwash in children. | dental caries is a multifactorial disease which requires a susceptible host, a cariogenic microflora, and a suitable substrate that must be present for a sufficient length of time. tea is prepared by the infusion of dried leaves of the tea plant, camellia sinensis, which contains bioactive compounds like polyphenols, flavonoids, and catechins that are thought to be responsible for the health benefits that have traditionally been attributed to tea. these compounds have multidimensional effects su ... | 2017 | 26236682 |
| africa's oesophageal cancer corridor: do hot beverages contribute? | hot beverage consumption has been linked to oesophageal squamous cell cancer (ec), but its contribution to the poorly understood east african ec corridor is not known. | 2015 | 26245249 |
| transcriptomic and phytochemical analysis of the biosynthesis of characteristic constituents in tea (camellia sinensis) compared with oil tea (camellia oleifera). | tea plants (camellia sinensis) are used to produce one of the most important beverages worldwide. the nutritional value and healthful properties of tea are closely related to the large amounts of three major characteristic constituents including polyphenols (mainly catechins), theanine and caffeine. although oil tea (camellia oleifera) belongs to the genus camellia, this plant lacks these three characteristic constituents. comparative analysis of tea and oil tea via rna-seq would help uncover th ... | 2015 | 26245644 |
| tea and flavonoid intake predict osteoporotic fracture risk in elderly australian women: a prospective study. | observational studies have linked tea drinking, a major source of dietary flavonoids, with higher bone density. however, there is a paucity of prospective studies examining the association of tea drinking and flavonoid intake with fracture risk. | 2015 | 26269364 |
| effects of green tea (camellia sinensis) mouthwash containing 1% tannin on dental plaque and chronic gingivitis: a double-blinded, randomized, controlled trial. | the aim of the present study was to explore the effects of iranian green tea mouthwash containing 1% tannin on dental plaque and chronic gingivitis. | 2017 | 26272266 |
| molecular cloning and characterization of spermine synthesis gene associated with cold tolerance in tea plant (camellia sinensis). | spermine synthase (spms, ec 2.5.1.22), enzyme of spermine (spm) biosynthesis, has been shown to be related to stress response. in this study, attempts were made to clone and characterize a gene encoding spms from tea plant (camellia sinensis). the effect of exogenous application of spm in c. sinensis subjected to low-temperature stress was also investigated. a full-length spms complementary dna (cdna) (csspms) with an open reading frame of 1113 bp was cloned using reverse transcription-pcr and r ... | 2015 | 26276446 |
| chronic black tea extract consumption improves endothelial function in ovariectomized rats. | menopause escalates the risk of cardiovascular diseases in women. there is an unmet need for better treatment strategy for estrogen-deficiency-related cardiovascular complications. here we investigated the impact of chronic black tea extract (bt) consumption on cardiovascular function and lipid metabolism using a rat model of estrogen deficiency. | 2016 | 26276555 |
| natural products of relevance in the prevention and supportive treatment of depression. | the use of herbs or their parts: leaves, roots, rhizomes, flowers, seeds, natural strains, as well as extracts or isolated metabolites is becoming more and more popular. natural remedies not only act prophylactically, but also help to alleviate symptoms of many diseases and enhance the overall functioning of the internal organs. many raw materials of natural origin plays a role in treatment of health problems, and also in case of serious diseases such as depression. depression (affective disorde ... | 2016 | 26276913 |
| effect of brewing duration on the antioxidant and hepatoprotective abilities of tea phenolic and alkaloid compounds in a t-bhp oxidative stress-induced rat hepatocyte model. | tea is an interesting source of antioxidants capable of counteracting the oxidative stress implicated in liver diseases. we investigated the impact of antioxidant molecules provided by a mixture of teas' leaves (green, oolong, pu-erh) after different infusion durations in the prevention of oxidative stress in isolated rat hepatocytes, by comparison with pure epigallocatechin-3-gallate (egcg), the main representative of tea catechins. dried aqueous tea extracts (ate) obtained after 5, 15 and 30 m ... | 2015 | 26287152 |
| a study on quality components and sleep-promoting effects of gaba black tea. | the aims of this study were to analyze the changes in quality components of gamma (γ)-aminobutyric acid (gaba) black tea during processing, and to investigate the effect of three dosages of gaba black tea on sleep improvement. the results showed that the gaba content was increased significantly up to 2.70 mg g(-1) after vacuum anaerobic and aerobic treatment. in addition, the content of gaba after drying reached 2.34 mg g(-1), which achieved the standard of gaba tea. during the entire processing ... | 2015 | 26290415 |
| coffee prevents proximal colorectal adenomas in japanese men: a prospective cohort study. | this prospective cohort study aimed to show that coffee prevents the recurrence of colorectal tumors (adenomas, precursors of colorectal cancer, and early-stage colorectal cancers) as well as colorectal cancer. the present study included 307 patients who participated in a clinical study that required endoscopy to remove a colorectal tumor. the amount of coffee consumed by the patients at study inclusion and the frequency of colorectal tumors, as detected by colonoscopy over the subsequent 4 year ... | 2016 | 26291025 |
| re: randomized clinical trial of brewed green and black tea in men with prostate cancer prior to prostatectomy. | 2015 | 26292860 | |
| 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 |
| using uv-vis spectroscopy for simultaneous geographical and varietal classification of tea infusions simulating a home-made tea cup. | in this work we proposed a method to verify the differentiating characteristics of simple tea infusions prepared in boiling water alone (simulating a home-made tea cup), which represents the final product as ingested by the consumers. for this purpose we used uv-vis spectroscopy and variable selection through the successive projections algorithm associated with linear discriminant analysis (spa-lda) for simultaneous classification of the teas according to their variety and geographic origin. for ... | 2016 | 26304362 |
| effects of brewing conditions on the antioxidant capacity of twenty-four commercial green tea varieties. | a novel paper-based nanoceria reducing antioxidant capacity (nanocerac) assay for antioxidant detection (sharpe, frasco, andreescu, & andreescu, 2012), has been adapted for the first time as a high-throughput method, in order to measure the effect of brewing conditions and re-infusion on the antioxidant capacity of twenty-four commercial green teas. the oxygen radical absorbance capacity (orac) assay, frequently applied to complex foods and beverages, was used as a comparator measure of antioxid ... | 2016 | 26304363 |
| transcriptome-wide identification of camellia sinensis wrky transcription factors in response to temperature stress. | tea plant [camellia sinensis (l.) o. kuntze] is a leaf-type healthy non-alcoholic beverage crop, which has been widely introduced worldwide. tea is rich in various secondary metabolites, which are important for human health. however, varied climate and complex geography have posed challenges for tea plant survival. the wrky gene family in plants is a large transcription factor family that is involved in biological processes related to stress defenses, development, and metabolite synthesis. there ... | 2016 | 26308611 |
| 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 |
| 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 |
| investigation of adverse effects of interactions between herbal drugs and natural blood clotting mechanism. | throughout the world, herbal medicines are consumed by most of the patients without considering their adverse effects. many herbal medicines/plant extracts have been reported to interact with the natural blood clotting system. in continuation to this effort, thirty medicinal plant extracts were allowed to interact with citrated human blood and the clotting time was measured after re-calcification in vitro using lee and white method. the aq. leaf ext. of syzygium cumini and camellia sinensis sign ... | 2016 | 26340850 |
| complementary transcriptomic and proteomic analyses of a chlorophyll-deficient tea plant cultivar reveal multiple metabolic pathway changes. | to uncover the mechanisms that underlie the chlorina phenotype of the tea plant, this study employs morphological, biochemical, transcriptomic, and itraq-based proteomic analyses to compare the green tea cultivar lj43 and the yellow-leaf tea cultivar zh1. zh1 exhibited the chlorina phenotype, with significantly decreased chlorophyll content and abnormal chloroplast development compared with lj43. zh1 also displayed higher theanine and free amino acid content and lower carotenoid and catechin con ... | 2016 | 26344129 |
| 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 |
| comparative evaluation of five plant extracts and juices for nanoiron synthesis and application for hexavalent chromium reduction. | the effectiveness of five plant extracts and juices, i.e. extracts of camellia sinensis (green tea, gt), syzygium aromaticum (clove, cl), mentha spicata (spearmint, sm), punica granatum juice (pomegranate, pg) and red wine (rw), for the production of nanoiron suspensions and their application for cr(vi) reduction was investigated. polyphenols contained in extracts act as reducing agents for iron ions in aqueous solutions, forming thus iron nanoparticles, and stabilize the nanoparticles produced ... | 2016 | 26356183 |
| 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 |
| 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 |
| 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 |
| 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 |
| antagonistic potential of native trichoderma viride strain against potent tea fungal pathogens in north east india. | indigenous strains of trichoderma species isolated from rhizosphere soils of tea gardens of assam, north eastern state of india were assessed for in vitro antagonism against two important tea fungal pathogens namely pestalotia theae and fusarium solani. a potent antagonist against both tea pathogenic fungi, designated as sdrlin1, was selected and identified as trichoderma viride. the strain also showed substantial antifungal activity against five standard phytopathogenic fungi. culture filtrate ... | 2015 | 26361476 |
| effects of flavonol-rich green tea cultivar (camellia sinensis l.) on plasma oxidized ldl levels in hypercholesterolemic mice. | to examine the possible benefits of tea flavonols, we compared anti-atherogenic effects between common and flavonol-rich tea cultivars. the tea infusion made from a flavonol-rich cultivar, but not a common cultivar, significantly decreased the plasma oxidized low-density lipoprotein level in mice fed a high-cholesterol diet. the result suggests that tea flavonols have the potential to protect against cardiovascular diseases. | 2016 | 26364623 |
| 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 |
| 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 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| synergy between antibiotics and natural agents results in increased antimicrobial activity against staphylococcus epidermidis. | staphylococcus epidermidis is one of the most frequent causes of biofilm-associated infections on indwelling medical devices. with the emergence of methicillin-resistant s. epidermidis (mrse), there is an urgent need to discover novel active agents against a range of gram-positive pathogens. we screened the clinical isolates of s. epidermidis for susceptibility/resistance against commonly prescribed antibiotics. furthermore, we tested some natural agents alone and in combination with antibiotics ... | 2015 | 26409732 |
| 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 |
| 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 |
| 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 |
| identification, classification, and expression profiles of heat shock transcription factors in tea plant (camellia sinensis) under temperature stress. | in vascular plants, heat shock transcription factors (hsfs) regulate heat stress response by regulating the expression of heat shock proteins. this study systematically and comprehensively analyzed the hsf family in tea plant [camellia sinensis (l.) o. kuntze]. a total of 16 cshsfs were identified from the transcriptome database of tea plant and analyzed for their phylogenetic relationships, motifs, and physicochemical characteristics. on the basis of the phylogenetic comparison of tea plant wit ... | 2016 | 26431998 |
| determination of catechins and flavonol glycosides in chinese tea varieties. | a standardised profiling method based on high performance liquid chromatography combined with ultraviolet (uv) and mass spectrometric detection (ms) was established to analyse the phenolic compounds of selected tea varieties used for manufacturing of green, black and oolong teas. the composition and content of 24 tea constituents were analysed, including catechins, flavonol and flavones glycosides, phenolic acids and purine alkaloids. each tea variety had a unique chemical profile. the compositi ... | 2012 | 26434273 |
| an improved method for thin layer chromatographic analysis of saponins. | analysis of saponins by thin layer chromatography (tlc) is reported. the solvent system was n-butanol:water:acetic acid (84:14:7). detection of saponins on the tlc plates after development and air-drying was done by immersion in a suspension of sheep erythrocytes, followed by washing off the excess blood on the plate surface. saponins appeared as white spots against a pink background. the protocol provided specific detection of saponins in the saponins enriched extracts from aesculusindica (wall ... | 2012 | 26434348 |
| 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 |
| 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 |
| long-term intake of white tea prevents oxidative damage caused by adriamycin in kidney of rats. | white tea infusion (camelia sinensis) has antioxidants properties. the infusion contains polyphenols that have been proposed to induce antioxidant response element (are) response via nuclear factor e2-related factor 2 (nrf2). adriamycin (adr) has antitumour properties and oxidative effects. oxidative stress is related to a variety of kidney diseases. prevention of the oxidative stress through long-term intake of white tea and the study of the molecular mechanisms involved in protection could be ... | 2016 | 26441376 |
| 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 |
| 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 |
| anti-aging potential of phytoextract loaded-pharmaceutical creams for human skin cell longetivity. | the exposure to ultraviolet radiations (uvr) is the key source of skin sunburn; it may produce harmful entities, reactive oxygen species (ros), leading to aging. the skin can be treated and protected from the injurious effects of ros by using various pharmaceutical formulations, such as cream. cream can be loaded with antioxidants to quench ros leading to photo-protective effects. moreover, modern medicines depend on ethnobotanicals for protection or treatment of human diseases. this review arti ... | 2015 | 26448818 |
| slow release of plant volatiles using sol-gel dispensers. | the black citrus aphid, also known as the tea aphid, (toxoptera aurantii boyer) attacks economically important crops, including tea (camellia sinensis (l.) o. kuntze). in the current study, silica sol-gel formulations were screened to find one that could carry and release c. sinensis plant volatiles to lure black citrus aphids in a greenhouse. the common plant volatile trans-2-hexen-1-al was used as a model molecule to screen for suitable sol-gel formulations. a znose (electronic sensor technolo ... | 2014 | 26470065 |
| 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 |
| simultaneous determination of free amino acids in pu-erh tea and their changes during fermentation. | pu-erh ripened tea is produced through a unique microbial fermentation process from the sun-dried leaves of large-leaf tea species (camellia sinensis (linn.) var. assamica (masters) kitamura) in yunnan province of china. in this study, the changes of amino acid profiles during fermentation of pu-erh tea were investigated, based on the improved hplc-uv method with pitc pre-column derivatization for the simultaneous determination of twenty free amino acids. results showed that aspartic acid, gluta ... | 2016 | 26471603 |
| volatile compounds and sensory characteristics of various instant teas produced from black tea. | various instant teas produced differently from black tea [freeze-dried instant tea (fdit), spray-dried instant tea (sdit), and decaffeinated instant tea (dcit)], were compared for their differences in volatile compounds as well as descriptive sensory analysis (dsa). a total of 63 volatile compounds in all tea samples (eight aldehydes, ten alcohols, nine ketones, five esters, eight acids, ten terpenes/terpenoids, ten furans/furanones, two pyrroles, and one miscellaneous compound) were tentatively ... | 2016 | 26471629 |
| effect of black tea on antioxidant, textural, and sensory properties of chinese steamed bread. | black tea is rich in phenolic antioxidants and has various health benefits. chinese steamed bread (csb) is a traditional food produced through steaming of fermented dough. black tea extracts were incorporated into northern style csb formulation at varying concentrations up to 175mg gallic acid equivalent/gram of wheat flour. gelatinization properties of wheat flour were not affected by the black tea addition. rheological analysis of wheat flour showed that black tea increased pasting viscosity, ... | 2016 | 26471674 |
| camellia sinensis mediated enhancement of humoral immunity to particulate and non-particulate antigens. | the most common drinking beverage in large portion of the world is camellia sinensis (green tea). in the present study, we evaluated the adjuvant effect of green tea and tea polyphenols to particulate and non-particulate antigens. balb/c mice were immunized with particulate and non-particulate antigens. modulation of immunoglobulin-secreting splenocytes, igg-mediated and igm-mediated immunity, was evaluated by hemolytic plaque assay and enzyme-linked immunosorbent assay, respectively. dose-depen ... | 2016 | 26478000 |
| 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 |
| compounds derived from epigallocatechin-3-gallate (egcg) as a novel approach to the prevention of viral infections. | pathogenic viral infections pose major health risks to humans and livestock due to viral infection-associated illnesses such as chronic or acute inflammation in crucial organs and systems, malignant and benign lesions. these lead to large number of illnesses and deaths worldwide each year. outbreaks of emerging lethal viruses, such as ebola virus, severe acute respiratory syndrome (sars) virus and middle east respiratory syndrome (mers) virus, could lead to epidemics or even pandemics if they ar ... | 2015 | 26490660 |
| reidentification of sex pheromones of tea geometrid ectropis obliqua prout (lepidoptera: geometridae). | tea geometrid ectropis obliqua prout (lepidoptera: geometridae) is an important defoliator of the tree crop camellia sinensis l. in china. the sex pheromones of e. obliqua have not been identified, but have potential importance relative to the biological control of this predator. in this study, the female sex pheromones of e. obliqua were identified and evaluated for use in the monitoring and mass trapping of this pest. the sex pheromone extracts were subjected to gas chromatography-electroanten ... | 2016 | 26491188 |
| nontargeted analysis using ultraperformance liquid chromatography-quadrupole time-of-flight mass spectrometry uncovers the effects of harvest season on the metabolites and taste quality of tea (camellia sinensis l.). | the chemical composition and taste quality of tea fluctuate seasonally. however, the compounds responsible for the seasonal variation of metabolic pattern and taste quality are far from clear. this study compared the metabolite profiles of green teas of nine varieties that were plucked in spring, summer, and autumn by using ultraperformance liquid chromatography-quadrupole time-of-flight mass spectrometry (uplc-q-tof/ms) on a reversed phase column. a multivariate analysis indicated distinct diff ... | 2015 | 26494158 |
| varietal identification of tea (camellia sinensis) using nanofluidic array of single nucleotide polymorphism (snp) markers. | apart from water, tea is the world's most widely consumed beverage. tea is produced in more than 50 countries with an annual production of approximately 4.7 million tons. the market segment for specialty tea has been expanding rapidly owing to increased demand, resulting in higher revenues and profits for tea growers and the industry. accurate varietal identification is critically important to ensure traceability and authentication of premium tea products, which in turn contribute to on-farm con ... | 2014 | 26504544 |
| relationship between gene expression and the accumulation of catechin during spring and autumn in tea plants (camellia sinensis l.). | the tea plant (camellia sinensis l.) is an important commercial crop with remarkably high catechin concentrations. tea is popular worldwide given the plant's health benefits. catechins are the main astringent substance in tea and are synthesized mainly via the phenylpropanoid pathway. in this study, eight cultivars of tea plants harvested both in spring and autumn were used to investigate differences in catechin concentrations by using high-performance liquid chromatography. the expression level ... | 2015 | 26504566 |
| erratum: relationship between gene expression and the accumulation of catechin during spring and autumn in tea plants (camellia sinensis l.). | [this corrects the article doi: 10.1038/hortres.2015.11.][this corrects the article doi: 10.1038/hortres.2015.11.]. | 2015 | 26506527 |