摘要
利用超声波辅助表面活性剂提取柠檬皮中的果胶,采用咔唑硫酸法测定提取液中的果胶含量。以果胶提取率为指标,在单因素实验的基础上,利用Box-Behnken设计四因素三水平进行响应面试验,建立各因素与响应值之间的数学模型,确定最佳提取工艺。结果表明,最佳工艺条件为超声时间30 min、超声功率330 W、提取温度80℃、SDS用量0.60 g,在此工艺条件下,果胶提取率为19.51%。
Pectin was extracted from lemon peel assisted by ultrasonic/surfactant. The content of pectin was measured by carbazole and sulphuric acid spectrophotometric method. A Box-Behnken design involving four factors at three levels each was used to determine the optimum extraction conditions using pectin yield as response. The optimum extraction conditions were obtained as follows： extraction time was 30 min,ultrasonic power was 330 W,extraction temperature was 80 ℃,amount of SDS was 0. 6 g. Under the optimized conditions,the yield of pectin was 19. 51 %.
出处
《广州化工》
CAS
2017年第16期52-56,共5页
GuangZhou Chemical Industry
基金
四川省教育厅青年基金项目(11ZB179)
作者简介
第一作者：刘敏（1983-），女，硕士，讲师。
通讯作者：雷光东，男，教授。
