Optimization of Extraction of Polyphemus and Caffeine from Tea-leaves
Tea was rich in various substances that were beneficial to the human body,such as tea polyphenols,caffeine,etc.How to achieve efficient extraction of beneficial substances was currently a bottleneck problem that hindered the development of the tea-wine industry.This article takes Duyun Maojian as the research object,and efficiently extracted the tea polyphenols and caffeine contained in it using a Soxhlet extractor.The single factor experimental method was used to study the influence of process conditions such as extractant,solid-liquid ratio,extraction time,and extraction temperature on the extraction effect.Combined with orthogonal experimental method,favorable process conditions were obtained.The research results indicated that the degree of influence of various factors on the extraction rate was as follows:extractant(A)＞material liquid ratio(D)＞extraction temperature(C)＞extraction time(B).The optimal process conditions were A3B2C2D3,which meant the extractant was sauce wine,extraction time was 5 hours,extraction temperature was 90℃,and material liquid ratio was 15∶1.Under these conditions,the extraction rate of tea polyphenols was 35%,and the extraction rate of caffeine was 10.8%.The results of this article provided an new idea for the preparation of high-quality tea-wine.
万方数据
维普
