Research
641 papers, trials, theses and preprints that study matcha, gathered from PubMed, OpenAlex and Europe PMC, tagged by study type and topic, and linked back to every source. We keep abstracts and citations; the full text stays with its publisher.
Tip: use "quotes" for an exact phrase, OR between alternatives, and a minus to leave a word out, for example fluoride OR pesticide. Related words are matched too, so “EGCG” also finds “epigallocatechin.”
60 studies match for “Amino Acids”
世界的な抹茶需要により，外国での抹茶生産が増え，輸出戦略の構築のためには国産抹茶の特徴を把握する必要がある。本研究では香りに着目し，国産抹茶と外国産抹茶の香りを区別する香気寄与成分を主成分分析により特定し，抹茶の香りに重要な低沸点成分とともに定量した。その結果，低沸点成分であるdimethyl sulfide，methyl aldehydes (2-methyl propanal, 3-methyl butanal, 2-methyl…
Other / not statedL-theanine and caffeineProcessing, milling and qualityAroma, flavor and sensoryCited 2×… as particularly beneficial to health. A large content of polyphenols, amino acids (mainly tannins) and caffeine potentially increase the antioxidant properties of the drink. The aim of the study was to determine the antioxidant …
Agronomy / cultivationAntioxidants and polyphenolsL-theanine and caffeineCultivation and shadingCited 124×… Matcha green tea contains several bioactive factors such as antioxidants, amino acids, and dietary fibers; however, its effect on muscle adaptation is unclear. In this study, we aimed to investigate the effects of matcha beverage …
Randomized controlled trialCognition, mood and stressMetabolism and weightGut and microbiomeCited 23×抹茶は中国を起源とし，日本には約800年以上前に伝わった．飲料としてだけでなく，文化としての茶道が確立するなど，日本で独自の発展を遂げた．生産方法においても改良が積み重ねられ，被覆栽培やてん茶機による製造技術が完成した．抹茶の香りの特徴は，被覆栽培によって茶葉中のアミノ酸やカロテノイド含量が高まり，これらが前駆体となって覆い香のジメチルスルフィドやヨノン系の香気成分が生成することである．抹茶は馥郁たる香味を有し，近年は食品加工用素材として需要が国内外で高まってきている．
Other / not statedL-theanine and caffeineCultivation and shadingAroma, flavor and sensoryCited 1×… Chinese market. Most of matcha samples had lower ratio of tea polyphenols to amino acids (RTA), and the RTA of 9 samples of matcha was less than 10, which is beneficial to the formation of fresh and mellow taste of matcha. The total …
Observational (human)Antioxidants and polyphenolsL-theanine and caffeineProcessing, milling and qualityCited 13×… in the matcha samples, comprising 118 flavonoids, 14 tannins, 365 organic acids, 42 phenolic acids, 22 alkaloids, 39 saccharides, 208 amino acids and derivatives, 17 lignans and coumarins, seven quinones, 44 nucleotides and …
Chemical / analyticalMetabolism and weightAntioxidants and polyphenolsProcessing, milling and qualityCited 6×… and surface morphologies. Using liquid chromatography, 4 sugars, 6 organic acids, 18 amino acids and 9 polyphenols were detected in all matcha samples and shown to present in different amount. Moreover, 108 volatile compounds were …
Chemical / analyticalAntioxidants and polyphenolsL-theanine and caffeineProcessing, milling and qualityCited 28×… of beneficial biological effects due to its high concentration of polyphenols, amino acids, and antioxidants. Nevertheless, despite promising experimental and preclinical data, further well-designed clinical studies are needed to better …
ReviewCognition, mood and stressMetabolism and weightAntioxidants and polyphenolsCited 2×Matcha, a type of green tea, has a higher amino acid content than other types of tea. We previously examined the ability of matcha to improve cognitive function in older adults and determined that continuous matcha intake improves …
Randomized controlled trialCognition, mood and stressL-theanine and caffeineCited 32×… beverages are rich in bioactive compounds such as caffeine, polyphenols, and amino acids, which contribute to their stimulating, antioxidant, and neuroprotective effects. Coffee, with its long history and widespread cultural …
ReviewCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 1×… and environment-related changes to gene transcription. The expression of amino acid permeases (APP) encoding genes was downregulated in tea plants. Thus, shading influences theanine biosynthesis and the AAP-mediated distribution of …
Agronomy / cultivationAntioxidants and polyphenolsL-theanine and caffeineCultivation and shadingCited 42×Theanine, a major amino acid in green tea, exhibits a stress-reducing effect in mice and humans. Matcha, which is essentially theanine-rich powdered green tea, is abundant in caffeine. Caffeine has a strong antagonistic effect against …
Randomized controlled trialCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 84×… is known about its bioactive components, except for polyphenols, caffeine, and amino acids. Here, we revealed the presence of diverse miRNAs, a type of functional RNAs, as new components of Matcha, using next-generation sequencing. …
Agronomy / cultivationCultivation and shadingProcessing, milling and qualityAntioxidants and polyphenolsCited 2×… sinensis and contain bioactive compounds such as catechins, caffeine, and amino acids, notably theanine. However, the amounts and ratios of these components vary significantly depending on the harvest season, cultivar, and …
ReviewCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeine… по сравнению с контролем. The work is devoted to the study of the amino acid composition of the developed meat-containing product. When developing the formulation, special attention was paid to the protein composition of the …
Food science / processingAntioxidants and polyphenolsL-theanine and caffeineSafety, contaminants and toxicity… decreased BA.1 virus infectivity in vitro. These results indicate specific amino acid substitutions in RBDs that crucially influence the binding of EGCG/TFDG to the RBDs and different susceptibility of each Omicron subvariant to …
In vitro / cell studyAntioxidants and polyphenolsInflammation and immunityL-theanine and caffeineCited 13×Theanine, an amino acid unique to tea leaves, has been reported to exhibit stress-relieving effects. However, the stress-relieving effects of theanine (T) are greatly inhibited by caffeine (C) and epigallocatechin gallate (E), the main …
Animal studyCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 5×… group, which exhibited the highest theanine content, the lowest polyphenol-to-amino acid ratio, and the best sensory score. Simulated gastrointestinal digestion showed that selenium-enriched matcha had higher …
Animal studyAntioxidants and polyphenolsL-theanine and caffeineGut and microbiomeCited 1×… of theanine in tea plants were affected by down regulation of gene encoding amino acid permeases, theanine content in tea leaves that grown under shading condition was significantly higher than those under natural light. In this study, …
Agronomy / cultivationMetabolism and weightL-theanine and caffeineCultivation and shadingCited 7×… showed that shading could help the systhesis of nitrogen compounds such as amino acids,caffeine chlorophyll and protein,but couldn′t favor accumulation of tea polyphenol and polysaccharides.The more shading time was,the more …
Agronomy / cultivationAntioxidants and polyphenolsL-theanine and caffeineCultivation and shading… cell plasticity, antioxidation, glutamate transport and metabolism, GABA (γ-amino butyric acid) formation and transport and excitatory amino acid transporters: proteins downregulated upon sample intake (p < 0.05): brain acid-soluble …
Animal studyCognition, mood and stressMetabolism and weightAntioxidants and polyphenolsCited 10×… as a finely ground tea powder with a high content of catechins, chlorophyll, amino acids, and natural antioxidants, is considered a promising component for the development of functional fermented products. The study examines the …
Observational (human)Antioxidants and polyphenolsAroma, flavor and sensoryFood products and applications… Functional group absorption in FT-IR, moisture and carbohydrates in NIR, and amino acid and polyphenol fluorescence in FF contributed to the identification. These findings indicate that the selection of an algorithm appropriate for the …
Randomized controlled trialAntioxidants and polyphenolsL-theanine and caffeineAuthenticity and analytical methodsCited 3×… significantly reduced triacylglycerol levels in serum and liver as well as the aminotransferase activities in mice at a dose of 200 mg/kg, suggesting that they possess hepatoprotective effects. Moreover, several green teas remarkably …
Animal studyCognition, mood and stressAntioxidants and polyphenolsInflammation and immunityCited 29×… transmission. The cognitive function of attention is also enhanced by the amino acid: L-theanine. The mechanism of action is that it behaves like a glutamate reuptake inhibitor while also acting in the hippocampus as a competitive …
ReviewCognition, mood and stressL-theanine and caffeineCited 16×Every record comes from three open scholarly indexes — PubMed, OpenAlex and Europe PMC — searched for the word “matcha.” Records are merged by DOI and PubMed ID so each study appears once. A paper is kept only if matcha appears in its title, abstract, author keywords or subject terms and the text is about tea or food, which filters out the surname Matcha, software called Matcha, and the Scandinavian verb “matcha” (to match).
Study type and topic tags are assigned automatically from each paper's own title, abstract and subject terms using fixed keyword rules — no guesses, and papers without an abstract are marked as unclassified. Automatic tagging is imperfect, so treat tags as a way to narrow a search, not as a verdict on a paper's quality. A study being listed here is not an endorsement of its findings.
Coverage: this is every indexed paper that names matcha, not every study of green tea or its compounds (those are far more numerous). Papers that mention matcha only in passing are hidden by default. Work that never uses the word “matcha,” and publications outside these indexes, are not included. The library was last rebuilt October 20, 2026.
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