茶烷 的英文怎麼說
中文拼音 [cháwán]
茶烷
英文
decalin-
Tea ( camellia sinensis ) is one of the most common beverages consumed worldwide. tps ( tea pplyphonels ) are most abundant in green tea and they are mostly in the form of flavanols commonly known as catechins which include ( - ) - epicatechm ( ec ), ( - ) - epicatecbjn - 3 - gallate ( ecg ), ( - ) - epigallocatechin ( ecg ), ( - ) - epi gallocatechin - 3 - gallate ( egcg )
茶多酚（ teapolyphonels ， tps ）是以茶葉為原料提取出來的一類多酚類化合物，除含有酚酸、黃酮、黃酮醇和花色素外，其主要成份是茶兒茶素（黃烷醇類） ，約佔tps的60 - 80 。Theaflavins which are formed when flavanols are oxidized make up approximately 2 percent of the weight of dried black tea
黃烷醇氧化時形成的茶黃素約占干紅茶重量的2 % 。
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