摘要
首次将活性炭与凹凸棒土的混合脱色剂应用于银杏叶聚戊烯醇的脱色纯化中。通过正交试验,确定了最佳脱色条件:10 g聚戊烯醇粗品,溶于100 mL石油醚,采用活性炭与凹凸棒土作为混合脱色剂,脱色剂用量12 g,活性炭与凹凸棒土质量比为1∶5,脱色温度70℃,脱色时间20 min。经过脱色,纯度由38.58%提高到49.6%,聚戊烯醇基本无损失。
Mixture of activated carbon and attapulgite was first applied to the purification of polyprenols from Ginkgo biloba L.leaves using decoloration technology.Orthogonal experiment was designed to obtain the optimum conditions for decoloration and they were determined as follows： 10 g of crude polyprenols were dissolved in 100 mL petroleum ether,dosage of decolorant 12 g,mass ratio of activated carbon to attapulgite 1∶5（g∶g）,temperature 70 ℃,time 20 min.The purity was increased from 38.58 % to 49.6 % after decoloration without loss of polyprenols.
出处
《林产化学与工业》
EI
CAS
CSCD
北大核心
2010年第6期51-54,共4页
Chemistry and Industry of Forest Products
基金
国家自然科学基金资助项目(30871986)
浙江省院合作项目(2008SY03)
关键词
银杏叶
聚戊烯醇
纯化
脱色
正交试验
Ginkgo biloba L.leaves
polyprenols
purification
decoloration
orthogonal experiment
