摘要
从脱色剂的种类、脱色剂用量、脱色时间、温度、pH值、脱色次数等不同角度对灰树花多糖的脱色技术进行了较为系统的研究。结果表明 :脱色剂的种类不同对脱色效果影响极大 ;脱色剂的用量不同 ,其脱色效果差别很大 ,从V (样品 )∶V (脱色剂 ) =1∶2开始变得非常明显。对于复合脱色剂而言 ,脱色 30min已基本达到效果。脱色温度为室温与 5 0℃时的脱色效果差别不大 ,而低温 12℃的脱色效果最好。脱色次数不同 ,脱色效果有很大差异。其中前 2次的脱色效果最为明显 ,第三次与第二次差异不太大。在实际生产过程中 ,考虑到工时与成本以进行 2次脱色为好。
The major factors affecting decolorization of medicinal active component grifolan such as sorts,amounts of decolorizing agents,period,temperature,pH value and frequency of decolorization during the purification of grifolan were studied.The results indicated that different decolorizing agents(e.g.ethanol,H_2O_2,a complex decolorizing agent)have different impacts obviously.The difference of the amounts has also greatly different effect,the impact becomes obvious from 1(sample)∶2(decolorizing agent)on.Thirty minutes for decolorization can get the good result for the complex decolorizing agent.The optimal temperature of decolorization is 12℃,and the impact between room temperature and 50℃ are similar.The frequency of decolorization has also great influence,the optimal number of times of decolorization is two times while considering the period and price of production.
出处
《中国食用菌》
北大核心
2003年第6期49-51,共3页
Edible Fungi of China
基金
河南省南阳市科委资助的攻关项目
项目编号为No .0 0 0 30 8.
