MatchaDB

2003Journal article

Determination of catechins in matcha green tea by micellar electrokinetic chromatography.

Weiss DJ, Anderton CR

Journal of chromatography. A

Read at the publisher →PubMed

Abstract

Catechins in green tea are known to have many beneficial health properties. Recently, it has been suggested that matcha has greater potential health benefits than other green teas. Matcha is a special powdered green tea used in the Japanese tea ceremony. However, there has been no investigation to quantitate the catechin intake from matcha compared to common green teas. We have developed a rapid method of analysis of five catechins and caffeine in matcha using micellar electrokinetic chromatography. Results are presented for water and methanol extractions of matcha compared with water extraction of a popular green tea. Using a mg catechin/g of dry leaf comparison, results indicate that the concentration of epigallocatechin gallate (EGCG) available from drinking matcha is 137 times greater than the amount of EGCG available from China Green Tips green tea, and at least three times higher than the largest literature value for other green teas.

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Study type

Chemical / analytical

Measuring what is in matcha, or how to detect it.

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Keywords and subject terms

Cite this study

Weiss DJ, Anderton CR. (2003). Determination of catechins in matcha green tea by micellar electrokinetic chromatography. Journal of chromatography. A. https://doi.org/10.1016/s0021-9673(03)01133-6

DOI: 10.1016/s0021-9673(03)01133-6 · PubMed ID: 14518774 · Cited by 81 (OpenAlex)

More on antioxidants and polyphenols

2020Journal articleFree to read

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Japanese matcha is a type of powdered green tea, grown in a traditional way. Shading of the plants during the growth period enhances the processes of synthesis and accumulation of biologically active compounds, including theanine,…

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2020Journal articleFree to read

Antioxidant Properties and Nutritional Composition of Matcha Green Tea.

Jakubczyk K, Kochman J, Kwiatkowska A, et al. — Foods (Basel, Switzerland)

Matcha green tea (Camellia sinensis), which originates from Japan, is commonly considered as particularly beneficial to health. A large content of polyphenols, amino acids (mainly tannins) and caffeine potentially increase the antioxidant…

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2021Journal article

Intelligent evaluation of taste constituents and polyphenols-to-amino acids ratio in matcha tea powder using near infrared spectroscopy.

Guo Z, Barimah AO, Yin L, et al. — Food chemistry

Matcha tea is rich in taste and bioactive constituents, quality evaluation of matcha tea is important to ensure flavor and efficacy. Near-infrared spectroscopy (NIR) in combination with variable selection algorithms was proposed as a fast…

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2019Journal article

Evaluation of matcha tea quality index using portable NIR spectroscopy coupled with chemometric algorithms.

Wang J, Zareef M, He P, et al. — Journal of the science of food and agriculture

Abstract BACKGROUND The study reports a portable near infrared (NIR) spectroscopy system coupled with chemometric algorithms for prediction of tea polyphenols and amino acids in order to index matcha tea quality. RESULTS Spectral data were…

Randomized controlled trialAntioxidants and polyphenolsL-theanine and caffeineProcessing, milling and qualityCited 114×

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