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.”
23 studies match for “Correlation analysis”
… of professional requirements and inability to evaluate large samples. The analysis showed that physicochemical indicators of matcha were significantly related to sensory quality. Hence, principal component analysis (PCA) based on …
Observational (human)Processing, milling and qualityAroma, flavor and sensoryCited 75×… and untargeted metabolomics to examine the cecal contents in mice. By correlation analysis, we explored the potential mechanisms responsible for the positive effects of matcha on obesity. The results indicated that matcha had a …
Animal studyCognition, mood and stressMetabolism and weightL-theanine and caffeineCited 18×… using next-generation sequencing. Quantitative reverse-transcription PCR analysis of 10 different Matcha showed that miRNA levels varied depending on the cultivar and harvest season. As extraction methods of miRNAs, we found that …
Agronomy / cultivationCultivation and shadingProcessing, milling and qualityAntioxidants and polyphenolsCited 2×… of individual substances to antioxidant activity or digestibility their mutual correlations were evaluated. Crude fibre (10.7-17.5%), neutral-detergent fibre (30.7-42.8%) and organic matter digestibility values (59.4-69.7%) showed …
In vitro / cell studyAntioxidants and polyphenolsL-theanine and caffeineGut and microbiomeCited 79×… (PLS) models. The CARS-PLS models achieved the best predictive accuracy, with correlation coefficients of prediction (Rp) = 0.9204 for chlorophyll a, Rp = 0.9282 for chlorophyll b, and Rp = 0.9385 for total chlorophyll. These findings …
Chemical / analyticalCultivation and shadingProcessing, milling and qualityAuthenticity and analytical methodsCited 91×… was established and identified as the optimum model based on the values of the correlation coefficients of prediction (R P ), root mean square error of prediction (RMSEP) and residual predictive deviation (RPD), which were 0.8625, 0.82% …
Randomized controlled trialAntioxidants and polyphenolsL-theanine and caffeineProcessing, milling and qualityCited 114×… capabilities for the effective determination of TP, FAA and TP/FAA with correlation coefficient in the prediction set (Rp) of Rp > 0.97, Rp > 0.98 and Rp > 0.98 respectively. Therefore, this simple and efficient technique could be …
Chemical / analyticalAntioxidants and polyphenolsL-theanine and caffeineProcessing, milling and qualityCited 117×… obtained at various stages of drying for spectral acquisition and carotenoid analysis. After normalization preprocessing, bootstrapping soft shrinkage (BOSS), iteratively variable subset optimization (IVSO), and variable iterative space …
Chemical / analyticalProcessing, milling and qualityAroma, flavor and sensoryAuthenticity and analytical methods… Self-administered Diet History Questionnaire (BDHQ). In the gender-specific analysis, a significant cognitive enhancement was observed in the Montreal Cognitive Assessment (MoCA) score in the active group of women. In dietary analysis, …
Randomized controlled trialCognition, mood and stressAntioxidants and polyphenolsProcessing, milling and qualityCited 46×… F3H were transcriptionally downregulated with light intensity. Co-expression analysis showed the expressions of key transcription factors MYB12, MYB86, C1, MYB4, KTN80.4, and light signal perception and signaling genes (UVR8, HY5) had …
Agronomy / cultivationAntioxidants and polyphenolsCultivation and shadingProcessing, milling and qualityCited 78×… polyphenol release, digestive enzyme activity during digestion and their correlation of ESPSV supplemented with matcha (MT), green tea extract (GTE), tea polyphenols (TP) and epigallocatechin gallate (EGCG) (at 1% polyphenol level) …
Food science / processingAntioxidants and polyphenolsGut and microbiomeFood products and applicationsCited 27×Analysis of three matcha (cyclone-, bead- and stone-milled) revealed differences in their sizes and surface morphologies. Using liquid chromatography, 4 sugars, 6 organic acids, 18 amino acids and 9 polyphenols were detected in all matcha …
Chemical / analyticalAntioxidants and polyphenolsL-theanine and caffeineProcessing, milling and qualityCited 28×… accumulation under shading conditions remains elusive. Through visualization analysis of PIF genes under shading conditions, we identified a homologue of AtPIF7 gene, CsPIF7, highly responsive to shading treatment. Through co-expression …
Agronomy / cultivationL-theanine and caffeineCultivation and shadingProcessing, milling and qualityCited 10×… roughness (Sa, Sz) was analyzed via 3D laser scanning microscopy. Statistical analysis was performed using a linear mixed model and post-hoc test (Tukey) (p < 0.05). Composite type, staining solution, and exposure duration significantly …
In vitro / cell studyProcessing, milling and qualityCited 5×… determined and quantified by high-performance liquid chromatography, and the correlation analysis showed that gallic acid, gallocatechin, catechin, chlorogenic acid, and epigallocatechin gallate might at least partially contribute to …
Animal studyCognition, mood and stressAntioxidants and polyphenolsInflammation and immunityCited 29×… moisture transfer, causing a further drop in specific volume. Pearson correlation analysis verified the close correlations between macroscopic quality and microstructural characteristics. This study explored the mechanisms …
Food science / processingAntioxidants and polyphenolsProcessing, milling and qualityFood products and applications… starch was increased from 0.90 to 33.43%. According to the physiochemical analysis, there was a positive correlation between the extract ratio and the water-holding capacity of rice starch due to the high hydrophilic capacity of the …
Other / not statedAntioxidants and polyphenolsGut and microbiomeCited 8×… methods, respectively. Partial least square (PLS) method was used for correlation between reference methods and SFS method. RESULTS Results showed that SFS combined with chemometrics could be an alternative rapid way to monitor …
Chemical / analyticalAntioxidants and polyphenolsAuthenticity and analytical methodsProcessing, milling and qualityCited 10×… which was integrated with partial least squares (PLS), principal component analysis (PCA) and back propagation neural network (BPNN) models. 180 samples (60 with each brand) were selected to build training model, the remaining 60 …
Chemical / analyticalProcessing, milling and qualityAuthenticity and analytical methodsCognition, mood and stress… questionnaires, and in-depth interviews with business practitioners. The analysis results indicate that the most influential attributes on purchasing decisions are the authentic and consistent matcha flavor, affordable pricing, and …
Observational (human)Processing, milling and qualityFood products and applicationsAroma, flavor and sensory… indicators, which was solved using generally accepted methods of analysis. The authors showed that tea samples of Japanese origin had greater extract content compared to samples from China. Analysis of nitrogen fractions …
Agronomy / cultivationAntioxidants and polyphenolsL-theanine and caffeineCultivation and shadingCited 1×… decreasing by 16.4%-33.6% and total flavonol glycosides by 23.8%-43.3%. Correlation analysis based on both absolute values and treatment-induced changes further demonstrates that reduced UV radiation was the major driver of the …
Agronomy / cultivationAntioxidants and polyphenolsCultivation and shadingProcessing, milling and quality… (as a control) and one commercial green tea. The results demonstrated a strong correlation between major bioactive compounds and three biological activities. Antioxidant potential was correlated with epicatechin levels and with a …
In vitro / cell studyAntioxidants and polyphenolsL-theanine and caffeineGut and microbiomeCited 9×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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