摘要
目的对从白及块茎中提取多糖的工艺进行改进,为白及多糖的开发提供理论依据。方法采用煎煮前浸泡24 h及加入一定量ZTC1+1(Ⅱ)型天然澄清剂等新工艺,运用苯酚-硫酸法测定多糖含量及转移率。结果在提取液中,加入澄清剂4%的B组分、2%的A组分,且B∶A=2∶1,共澄清4 h,白及多糖含量及转移率均明显提高,且提取效果最好。结论白及多糖提取新工艺值得推广。
OBJECTIVE To improve the technology of extracting polysaccharide from Bletilla striata （Thunb） Reichb. f. and provide theory basis for the product development. METHODS Several new technologies used in the experiment include soaking for 24 h before decoction and applying ZTC1 ＋ 1 （ Ⅱ ） natural clarifying agent etc. The content and conversion of the polysaccharide was determinated by phonel-sulfuric acid method. RESULTS The content and conversion of the polysaccharide obviously raised and best extraction effect was obtained, when clarifying for 4h and 4% B component,2% A component （ B： A = 2：1 ） were added. CONCLUSION The new technology distilling polysaccharide from Bletilla striata （Thunb） Reichb. f. is worthy to be generalized.
出处
《中国现代应用药学》
CAS
CSCD
北大核心
2007年第4期289-291,共3页
Chinese Journal of Modern Applied Pharmacy
基金
江西农业大学自然科学基金项目[2004(1324)]
江西省教育厅科研项目[2006(145)]
关键词
白及多糖
澄清剂
提取
Polysaccharide of Bletilla striata （Thunb） Reichb. f.
clarifying agent
extraction
