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红茶及其热水提取物的制备:取带有芽苞的茶(Camellia sinensis)叶,经干燥处理(干燥程度为72％),以3轴柄单功能滚筒机滚动30分钟,再经CTC(卷曲、撕开和压碎)滚筒机处理,在湿度差值为2°F的湿室中发酵30分钟,发酵叶以浴器型干燥机(温度为180～200°F)最后干燥(得红茶),用聚乙烯袋打包密封备用。取10g,20g红茶及20g绿茶分别以100ml沸蒸馏水浸泡5分钟,过滤,分别得红茶提取物和绿茶提取物。
Preparation of black tea and its hot water extract: Camellia sinensis leaves with buds, dried (72% dry), rolled on a 3-axis shank single-function roller for 30 minutes, and then subjected to CTC ( Curling, tearing, and crushing) The drum machine is fermented for 30 minutes in a humid chamber with a humidity difference of 2°F. The fermented leaves are finally dried with a bath dryer (temperature of 180-200°F). ), use polyethylene bags to seal and spare. Take 10g, 20g of black tea and 20g of green tea are respectively soaked in 100ml of boiling distilled water for 5 minutes, filtered to obtain black tea extract and green tea extract, respectively.