摘要
以橘皮为原料,稀盐酸为溶剂,超声萃取、乙醇沉淀法提取果胶.探讨了温度、液料比、pH值和超声提取时间等因素对果胶提取率的影响.通过正交实验确定的最佳工艺条件是:pH值为2.0,温度70℃,超声提取时间30 min,浸提液料比为40 mL/g.果胶提取率最高达到13.9%.
Extracting pectin from orange peel with ultrasonic-assistant solvent method was studied, hydrochloric as solvent and ethanol as precipitator. The influencing factors including temperature, liquid-to-solid ratio, pH value of the solution and extracting duration are studied. The optimal process conditions were obtained by orthogonal analysis as follows:pH value 2.0, temperature 70 ℃, extracting duration 30min, the liquid-to-solid ratio was 40 mL/g, and at the condition the extracting rate of pectin was 13.9%.
出处
《吉首大学学报(自然科学版)》
CAS
2007年第4期111-114,共4页
Journal of Jishou University(Natural Sciences Edition)
关键词
橘皮
果胶
浸提
超声辅助溶剂法
正交试验
orange peel
pectin
extraction
ultrasonic-assistant solvent method
orthogonal experiments