MatchaDB

Research

The Global Matcha Research Library

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.”

231 studies match for “R/C ratio”

2014Journal article

Einsatz der komprehensiven zweidimensionalen Flüssigchromatographie zur Analyse von Naturstoffen und die Entwicklung der Recycling Chromatographie zur Trennung chiraler Verbindungen

Roman Dück

… the complex sample. Thus, the optimal combination of columns to assess the separation efficiency - directly from the two-dimensional chromatogram - is of great importance. The separation efficiency of on-line LC x LC was compared with …

Chemical / analyticalAntioxidants and polyphenolsAuthenticity and analytical methodsProcessing, milling and quality
2009Journal article

HPLC Analysis of Bioactive Compounds in Unfermented Products of Camellia Sinensis

Ana Belščak, Dunja Horžić, Draženka Komes, et al.

… (green tea). The objective was to determine the effects of temperature and duration on the content of extracted phenolic compounds and methylxanthines, as well as the antioxidant capacity of obtained extracts. Individual polyphenols and …

Chemical / analyticalAntioxidants and polyphenolsL-theanine and caffeineAuthenticity and analytical methods

How this library is built

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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