福建农业学报 ›› 2017, Vol. 32 ›› Issue (5): 531-535.doi: 10.19303/j.issn.1008-0384.2017.05.013

• 食品科学 • 上一篇    下一篇

姬松茸富硒菌丝体多糖提取条件的优化

杨淑云   

  1. 福建省食用菌技术推广总站, 福建 福州 350003
  • 收稿日期:2016-12-21 修回日期:2017-02-10 出版日期:2017-05-28 发布日期:2017-05-28
  • 作者简介:杨淑云(1978-),女,硕士,高级农艺师,主要从事食药用菌科学研究与技术推广工作(E-mail:478902493@qq.com)

Optimization of Polysaccharide Extraction from Mycelia of Selenium-rich Agaricus blazei

YANG Shu-yun   

  1. Edible Fungi Technology Extension Station of Fujian, Fuzhou, Fujian 350003, China
  • Received:2016-12-21 Revised:2017-02-10 Online:2017-05-28 Published:2017-05-28

摘要: 为探讨姬松茸富硒菌丝体多糖的提取工艺,研发食用菌富硒菌丝多糖保健品,通过单因子试验和正交试验,对热水浸提法提取姬松茸富硒菌丝体多糖的条件进行优化。结果表明:料水比、乙醇沉淀浓度和浸提的温度、时间及次数对姬松茸富硒菌丝体多糖的提取均有较大影响,其最优提取条件为:料水比1:35(g·mL-1)、乙醇沉淀浓度90%、浸提温度85℃、浸提时间3.5 h、浸提次数3次,在此工艺条件下富硒菌丝体多糖的提取量及其硒含量分别达到69.5 mg·g-1和12.1 μg·g-1(菌丝干重);本工艺简单、稳定、可行,适用于姬松茸富硒菌丝体多糖的提取。

关键词: 姬松茸, 富硒菌丝体, 多糖, 提取

Abstract: The hot-water extraction of polysaccharides from the mycelia of Agaricus blazeia grown on a selenium-enriched medium was optimized to facilitate product development of health foods with the functional ingredient. A single factor followed by an orthogonal experiment was carried out to show the extraction yield to be significantly affected by the altered processing conditions. The optimized extraction conditions included a sample/water ratio of 1/35 (g·mL-1), an ethanol concentration for precipitation at 90%, a temperature of 85℃, and 3 repeated cycles that lasted 3.5 h. As a result, a yield on polysaccharides reached 69.5 mg·g-1; and the content of selenium in polysaccharides reached 12.1 μg·g-1(dry weight of mycelium). The procedures were simple, stable, practical, and appropriate for the extraction.

Key words: Agaricus blazei Murill, selenium-rich mycelium, polysaccharides, extraction

中图分类号: 

  • Q815