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[Analysis Case] Quantitative Analysis of Functional Components in Tea

Evaluation of the concentration of tea catechins and caffeine, and product comparison.

In MST, qualitative and quantitative analysis of tea catechins can be performed using LC/MS/MS. This document observed the changes in EGCG concentration based on the temperature and time of brewing tea (Figure 1). It was found that the higher the temperature, the greater the extraction efficiency of EGCG, with a significant amount extracted up to 5 minutes. Additionally, a comparison of the catechin content in six commercially available tea products confirmed that green tea contains more catechins than black tea or oolong tea (Figure 2). Benifuki green tea contains a high amount of methylated catechin (ECCG3"Me), which has strong anti-allergic effects against conditions such as hay fever.

• Company：一般財団法人材料科学技術振興財団　MST
• Price：Other

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