食品科学 ›› 2011, Vol. 32 ›› Issue (10): 31-34.doi: 10.7506/spkx1002-6630-201110007

• 工艺技术 • 上一篇    下一篇

内部沸腾法提取香菇多糖的工艺优化

陈晓光,韦藤幼,彭梦微,童张法*   

  1. 广西大学化学化工学院
  • 出版日期:2011-05-25 发布日期:2011-04-08
  • 基金资助:
    广西科学研究与技术开发计划课题(桂科能05112001-3A6)

Process Optimization for Extraction of Polysaccharides from Polysaccharides from Shiitake Mushroom by Inner Ebullition

Xiao-Guang CHEN   

  1. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
  • Online:2011-05-25 Published:2011-04-08

摘要: 目的:为加快香菇多糖的提取速率,提高浸膏中香菇多糖的含量。方法:采用内部沸腾法提取香菇多糖,采用少量的乙醇润湿物料使多糖溶出,然后加入热水让物料内部的乙醇沸腾,快速把多糖提取出来。结果:在乙醇体积分数为20%、提取用热水量为物料的25倍及热水温度在90℃时,提取过程在5min完成,提取液经浓缩与醇沉,香菇多糖的提取率为5.05%,浸膏中香菇多糖含量为51.6%。结论:与传统法相比,新的提取方法的多糖提取率提高0.18%、浸膏中多糖含量提高10.2%,整个提取时间缩短85min。内部沸腾法用于提取香菇多糖优势明显。

关键词: 内部沸腾法, 香菇多糖, 提取

Abstract: Objective: To accelerate and enhance the extraction of polysaccharides from shiitake mushroom by inner ebullition. Methods: A small amount of ethanol was used to wet the raw material for the dissolution of polysaccharides, and a given volume of hot water was then added to boil ethanol entering the raw material, resulting in rapid extraction of polysaccharides. Results: The maximum extraction of polysaccharides was obtained by wetting with 20% ethanol followed by 5 min extraction with a 25-fold volume of 90 ℃ hot water. The extraction yield and purity of polysaccharides obtained after concentration and subsequent ethanol precipitation was 5.05% and 51.6%, respectively. Compared to the traditional decoction method, the optimized method displayed an increase in polysaccharide yield purity respectively by 0.18% and 10.2% and a reduction in extraction time by 85 min. Conclusions: Inner ebullition has distinctive advantages in extracting polysaccharides from shiitake mushroom.

Key words: inner ebullition, polysaccharides, extraction

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