2012•Modern Agricultural Science and TechnologyRequires access

Extraction Rate and Influence Factors of Trace Elements in Tea

Rong Li

Abstract

The extraction rate of trace elements in tea were reviewed in the paper.It showed that different sorts and grades of teas had various contents of trace elements,but their extraction rates had the same trend.The research results indicated that no matter what kind of teas,the extraction rates of K,Na,Mn,Zn and Ni were high.However,the extraction rates of Ca and Fe were low.The factors were summarized,such as the form of elements,extraction time,extraction temperature and extraction times which had obvious effect on the extraction rate.

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Key concepts: Extraction (chemistry), TRACE (psycholinguistics), Chemistry, Trace element, Environmental chemistry, Chromatography, Linguistics, Organic chemistry