1 条结果 关键词:三相分配 ×

Development of low-cost paper-based biosensor of polyphenol oxidase for detection of phenolic contaminants in water and clinical samples.

Environmental science and pollution research international 2020 Noori R, Perwez M, Mazumder JA, Sardar M

本研究采用三相分配(TPP)法从土豆皮中纯化多酚氧化酶(PPO)。在粗提液中加入硫酸铵和叔丁醇,使 PPO 沉淀于上层有机相与下层水相之间的界面层;通过优化粗提液与叔丁醇比例、硫酸铵浓度、温度和 pH,单步回收率约 69%,纯化倍数 9.2 倍,SDS-PAGE 显示部分纯化 PPO 分子量约 30–40 kDa。随后将 PPO 与...