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.”
148 studies match for “l-theanine”
… to harvest. This practice enhances the accumulation of chlorophyll, caffeine, L-theanine, and other bioactive compounds. In addition, specialized post-harvest processing, including careful hand-picking, gentle steaming, drying, and …
ReviewCognition, mood and stressMetabolism and weightAntioxidants and polyphenolsCited 2×Obesity induced by a high-fat diet (HFD) is an increasing global health problem, leading to many metabolic syndromes. As the emerging food additive rich in tea polyphenols, theanine, caffeine, and so on, matcha green tea has gained more…
Animal studyMetabolism and weightAntioxidants and polyphenolsGut and microbiomeCited 22×Tea is a beverage commonly consumed worldwide. Matcha is a type of green tea produced by drying and grinding tea leaves (Camellia sinensis L.) into a fine powder. Matcha contains catechin, theanine, and caffeine, which affect cognitive…
Randomized controlled trialCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 29×The stress-reducing effect of matcha, a high-quality fine-powdered green tea, has recently been clarified by animal experiments and clinical trials. However, the effect of matcha added to confectioneries is not clear. One aim of this study…
Clinical trial (non-randomized)Cognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 40×… research has demonstrated that three constituents present in matcha tea, l-theanine, epigallocatechin gallate (EGCG), and caffeine, affect mood and cognitive performance. However, to date there are no studies assessing the effect of …
Randomized controlled trialCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 66×Matcha shows promise for diabetes, obesity, and gut microbiota disorders. Studies suggest a significant link between gut microbiota, metabolites, and obesity. Thus, matcha may have a positive impact on obesity by modulating gut microbiota…
Animal studyCognition, mood and stressMetabolism and weightL-theanine and caffeineCited 18×Matcha tea contains only the softer parts of the tea leaves and is finely ground. Therefore, extraction of the flavanols for analysis by HPLC is possible by a simpler protocol compared to the ISO 14502-2 method. 21 different simplified…
Chemical / analyticalAntioxidants and polyphenolsL-theanine and caffeineAuthenticity and analytical methodsCited 18×This review provides a comprehensive analysis of the bioactive compounds, health benefits, and production processes of two globally popular stimulant beverages: coffee and matcha. Both beverages are rich in bioactive compounds such as…
ReviewCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 1×… matcha-noodles. Herein, the effects of matcha and its active components, l-theanine and tea polyphenol, on the structural and rheological properties of gluten had been investigated. The results showed that matcha weakened the dough …
Food science / processingAntioxidants and polyphenolsL-theanine and caffeineProcessing, milling and qualityCited 46×Shading is a widely applied strategy to increase theanine and chlorophyll levels in tea leaves during matcha production. However, the regulatory mechanism of theanine accumulation under shading conditions remains elusive. Through…
Agronomy / cultivationL-theanine and caffeineCultivation and shadingProcessing, milling and qualityCited 10×… the biological mechanisms of action of its bioactive components (catechins, L-theanine, caffeine, vitamins, and minerals), as well as their significance in the prevention and support of therapy for chronic diseases. Matcha stands out …
Clinical trial (non-randomized)Cognition, mood and stressMetabolism and weightAntioxidants and polyphenolsCited 1×… Green tea and its bioactive components (epigallocatechin gallate [EGCG] and L-theanine) have been investigated for their health benefits and neuroprotective properties. As adults seek integrative and alternative treatment modalities, …
ReviewCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 7×The Omicron subvariants of SARS-CoV-2 have multiple mutations in the S-proteins and show high transmissibility. We previously reported that tea catechin (-)-epigallocatechin gallate (EGCG) and its derivatives including…
In vitro / cell studyAntioxidants and polyphenolsInflammation and immunityL-theanine and caffeineCited 13×Intake of the catechin epigallocatechin gallate and caffeine has been shown to enhance exercise-induced fat oxidation. Matcha green tea powder contains catechins and caffeine and is consumed as a drink. We examined the effect of Matcha…
Randomized controlled trialMetabolism and weightAntioxidants and polyphenolsL-theanine and caffeineCited 35×… on the antioxidant activity and release of phenolics, xanthine alkaloids, and L-theanine contents of matcha. It establishes digestibility values between 61.2-65.8%. Considering native matcha, the rutin content (303-479 µg/g) reached …
In vitro / cell studyMetabolism and weightAntioxidants and polyphenolsL-theanine and caffeineCited 21×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×This study investigated the synergistic effects of nanoselenium foliar fertilization, cultivar, altitude, and light exposure on matcha quality and functionality. Among 16 different cultivation treatments, the best quality matcha was found…
Animal studyAntioxidants and polyphenolsL-theanine and caffeineGut and microbiomeCited 1×Matcha, a finely powdered green tea, has been cherished in Japan for centuries, used in the traditional tea ceremony and nowadays also valued for its health-promoting properties. Cultivated under shaded conditions to enhance chlorophyll…
Chemical / analyticalMetabolism and weightAntioxidants and polyphenolsL-theanine and caffeineCited 7×Shading is an important practical method to improve the quality of green tea. Previous research of our group found that because the biosynthesis and distribution of theanine in tea plants were affected by down regulation of gene encoding…
Agronomy / cultivationMetabolism and weightL-theanine and caffeineCultivation and shadingCited 7×Matcha, a traditional Japanese green tea, has health-promoting effects. However, little is known about its bioactive components, except for polyphenols, caffeine, and amino acids. Here, we revealed the presence of diverse miRNAs, a type of…
Agronomy / cultivationCultivation and shadingProcessing, milling and qualityAntioxidants and polyphenolsCited 2×Although the benefits of the consumption of green tea and its components, including catechins and theanine, regarding aging, memory impairment and age-related cognitive decline have been investigated in senescence-accelerated prone mice…
Animal studyCognition, mood and stressMetabolism and weightAntioxidants and polyphenolsCited 10×Japanese green teas, including matcha, sencha, and gyokuro, are derived from the leaves of Camellia sinensis and contain bioactive compounds such as catechins, caffeine, and amino acids, notably theanine. However, the amounts and ratios of…
ReviewCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineThe quality of matcha foam is a key determinant of the sensory characteristics and consumer acceptance of matcha beverages. Although mechanized whisking offers a promising strategy for standardized preparation, whether it can reproduce the…
Observational (human)Antioxidants and polyphenolsL-theanine and caffeineSkin, oral and dentalMatcha was analysed for its chemical composition, fibre, vitamin C, caffeine and chlorophyll contents. Flavonoids and phenolics, phenolic profiles and antioxidant activity both in water and methanol solutions were determined. In vitro…
In vitro / cell studyAntioxidants and polyphenolsL-theanine and caffeineGut and microbiomeCited 79×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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