枸杞多糖提取方法的研究进展

Research progress on extraction methods of Lycium barbarum polysaccharides

中文关键词:  枸杞多糖  提取方法  研究进展

英文关键词:Lycium barbarum polysaccharides  extraction methods  research progress

中文摘要:

      枸杞多糖具有增加免疫能力、抗氧化和延缓衰老、调节血脂、降血糖作用、神经保护、抗辐射等功能而广泛应用于医药、保健和美容等领域。本文简单介绍了枸杞多糖的结构和功效, 重点归纳并对比了浸提法、微波提取法、超声波提取法、纤维素酶提取法提取枸杞多糖的提取工艺参数。原料预处理多采用干燥后粉碎, 除部分要求达到40~100目, 一般对颗粒度未做要求; 料液比多在1:10~1:30; 提取温度和时间差异较大, 浸提法时间最长, 微波法、超声波法和酶法相对较短; 对提取温度, 酶法提取时均在60 ℃以下, 另3种方法相对较高, 多在60~90 ℃。浸提法的提取率最低, 微波法、超声波法和酶法提取率均高于浸提法。枸杞多糖提取工艺的优化研究可为其精深加工和利用提供研究基础。

英文摘要:

      Lycium barbarum polysaccharide (LBP) is widely used in medicine, health, beauty and other fields, for its effects such as increasing immunity, anti-oxidation and anti-aging, regulating blood lipid, lowering blood glucose, neural protection and anti radiation, etc. This paper simply introduced the structure and function of LBP, and mainly summarized and compared the research progress on technological parameter of soaking extracting method, microwave assisted extraction, ultrasonic assisted extraction and enzyme assisted extraction method. For material pretreatment, the Goji berry were dried and crushed, without any particle size requirements, except for few 40~100 mesh in some articles. For ratio of solid to liquid, 1:10~1:30 were frequently used. The extraction temperature and time differed significantly, for extraction time, soaking extraction was the longest, and microwave method, ultrasonic method and enzymatic were relatively short; for extraction temperature, enzymatic extraction are all below 60 ℃, while the other 3 methods were relatively high, most at 60~90 ℃. Under these conditions, the extraction ratio of soaking extraction was lower than the other 3 methods. The optimization of LBP extraction process can lay foundation for deep processing and utilization of Goji berry.