新式茶饮中茶多酚和咖啡碱含量分析

Content analysis of tea polyphenols and caffeine in novel-tea beverage

中文关键词:  新式茶饮  茶多酚  儿茶素  咖啡碱

英文关键词:novel-tea beverage  tea polyphenols  catechins  caffeine

中文摘要:

      目的 探索市场上新式茶饮中的茶多酚、儿茶素和咖啡碱等茶叶成分含量。方法 本研究搜集了市场上17个品牌的46款新式茶饮, 进行检测分析, 并将产品按照新式奶茶、新式混合茶和新式纯茶进行分类比较。结果 新式茶饮的平均体积为566 mL/杯, 3种不同类型的新式茶饮平均价格比较: 新式奶茶>新式混合茶>新式纯茶, 化学成分比较表现为新式奶茶的茶多酚、儿茶素和咖啡碱含量低于新式混合茶和新式纯茶, 且经过分析发现茶多酚和儿茶素含量与新式茶饮的茶基底有一定关联, 本研究中茶多酚含量超过1000 mg/kg和儿茶素含量超过400 mg/kg的新式茶饮均为绿茶基底。结论 本研究可以让消费者了解市场上新式茶饮规格、价格及茶叶成分含量情况, 也为新式茶饮的产品研究和产品研发提供助力。

英文摘要:

      Objective To investigate the content of tea polyphenols, catechins, and caffeine in novel-tea beverages available on the market. Methods This study collected and analyzed total of 46 samples from 17 different brands in the market. These products were categorized and compared into 3 types: Novel-milk tea beverages, novel-blended tea beverages and novel-pure tea beverages. Results The findings revealed that the average volume of these was 566 mL per cup. Comparison of average prices of 3 different kinds of new tea drinks was as follows: Novel-milk tea beverages>novel-blended tea beverages>novel-pure tea beverages. In terms of chemical composition, the content of tea polyphenols, catechins, and caffeine in novel-milk tea beverages were significantly lower compared to those in novel-blended tea beverages and novel-pure tea beverages. Notably, the content of tea polyphenols and catechins were influenced by the type of tea base used in the novel-tea beverages. In this study, green tea bases were characterized by tea polyphenols content exceeding 1000 mg/kg and catechins content exceeding 400 mg/kg. Conclusion This research can enable consumers to understand the specifications, prices and tea component content of novel-tea beverages on the market, and also provide assistance for product research and development of novel-tea beverages.