摘要
采用超高压方法提取铁皮石斛中的多糖成分.在单因素实验的基础上,选取压力、时间、粉碎度和固液比(g∶mL)4个影响因素,以石斛多糖为指标,通过正交试验优化超高压方法提取石斛多糖的工艺条件.结果表明,将石斛粉碎到80目后,按固液比1∶20,采用300 MPa的压力提取6 min后,石斛多糖的得率达到19.27%.这表明超高压方法是一有效的提取石斛多糖的方法.
Dendrobium candidum polysaccharide was extracted by ultra high pressure extraction (UHPE) method. Based on single factor experiments, orthogonal test was used to optimize the extraction conditions. Pressure ,holding time, size and ratio of solid to liquid (g: mL) were as 4 factors and the yield of dendrobi- um polysaccharide (DP) was as target. The optimum parameters for extracting DP were as follows :pressure 300 MPa,holding time 6 min,size 80 mesh and ratio of solid to liquid (g: mL) 1: 20. The yield of DP was 19.27%. So UHPE was a suitable method for extraction of DP.
出处
《郑州轻工业学院学报(自然科学版)》
CAS
2012年第4期36-39,共4页
Journal of Zhengzhou University of Light Industry:Natural Science
基金
国家自然科学基金项目(20876152)
关键词
超高压提取
石斛多糖
工艺条件优化
ultra high pressure (UHP) extraction
dendrobium polysaccharide
technique condition optimi- zation
作者简介
纵伟(1965-),男,安徽省萧县人,郑州轻工业学院教授,博士,主要研究方向为功能食品.