水溶性茶绿色素制备工艺研究

Study on Manufacture Technique of Green Pigment of Water-soluble Tea

利用低档茶叶及其废弃物制取纯天然水溶性茶绿色素TGP ,并对脂溶性茶绿色素制备水溶性茶绿色素的 2个主要工序———皂化、铜代的最佳工艺条件进行了研究。正交试验结果表明 :用 1%NaOH在 80℃水浴 90min是叶绿素皂化的最佳条件 ;将pH值调为 3.0 ,在 80℃水浴 6 0min ,可使叶绿素铜钠盐的得率较高 。

Pure natural water soluble tea green pigment (TGP) was extracted from low grade tea and waste by product of tea etc., and the two processes of water soluble TGP made from fat solubility TGP were investigated . Results of orthogonal test showed that the best condition of saponification is with 1% sodium hydroxide for ninety minutes,the temperature of water bath at 80℃, and when acidity is 3.0,the temperature of water bath at 80℃ for 60 minutes ,a high proportion sodium copper chlorophyllin is achieved.