详细信息
分子短程蒸馏和重结晶分离银杏叶甾醇类化合物的研究 被引量:8
Studies on Seperation of Sterols from Ginkgo biloba L.by Molecular Distillation and Recrystallization
文献类型:期刊文献
中文题名:分子短程蒸馏和重结晶分离银杏叶甾醇类化合物的研究
英文题名:Studies on Seperation of Sterols from Ginkgo biloba L.by Molecular Distillation and Recrystallization
作者:王成章[1,2] 叶建中[1,2] 郑光耀[1,2] 张志杰[3] 沈兆邦[1,2]
第一作者:王成章
机构:[1]中国林业科学研究院林产化学工业研究所;[2]国家林业局林产化学工程重点开放性实验室;[3]南京工业大学化工学院
年份:2008
卷号:28
期号:2
起止页码:43-47
中文期刊名:林产化学与工业
外文期刊名:Chemistry and Industry of Forest Products
收录:CSTPCD;;Scopus;CSCD:【CSCD_E2011_2012】;
基金:国家“十一五”科技支撑计划(2006BAD06B09);国家林业局推广项目(2007-80)
语种:中文
中文关键词:银杏叶;甾醇;分子蒸馏;重结晶
外文关键词:Ginkgo biloba L. leaves; sterols; molecular distillation; recrystallization
分类号:TQ91
摘要:以银杏叶为原料,制备其石油醚提取软膏,通过皂化、萃取和冷冻,除去脂肪酸及其酯、蜡质等杂质,分离甾醇类集分。采用分子蒸馏分离技术和溶剂重结晶纯化甾醇类化合物,银杏叶甾醇收率为0.03%~0.08%。利用GC-MS联用技术鉴定银杏叶甾醇结晶物的化学组成,共分离出17种化合物,其中8种是甾醇类化合物,占所有峰面积的97.633%,依次为β-谷甾醇(67.984%)、8-烯-3β-麦角甾醇(10.624%)、3β-豆甾烷醇(10.065%)、5,24-二烯-3β-豆甾醇(5.255%)、4,22-二烯-3β-豆甾醇(1.926%)、5,8,22E-三烯-3β-麦角甾醇(0.618%)、岩藻甾醇(0.595%)、α-谷甾醇(0.566%);酮类化合物占1.066%,分别为17,19-二乙酰氧基-4,4-二甲基-13α-雄-5,7-二烯-3-烷酮(0.336%)和17α-乙酰氧基孕烯醇酮(0.730%)。除β-谷甾醇外,其它银杏叶甾醇均为首次报道。
Lipid paste was extracted with petroleum ether from Ginkgo biloba L. leaves. Fatty acids and their esters, wax etc. were separated from sterols by saponification, extraction and refrigeration. The yield of sterols was 0.03 %-0.08 % by molecular distillation and recrystallization. Chemical components of sterols from G. biloba leaves were analyzed by GC-MS. Seventeen compounds were separated in which eight sterols were identified, which amounted to 97. 633 % of total peak area. These are β-sitosterol ( 67. 984 % ), ergosta-8-en-3β-ol ( 10. 624 % ), stigmastan-3β-ol ( 10.065 % ), stigmasta-5,24 -dien-3β-ol, (3/3,24Z) ( 5. 255 % ) , stigmasta-4,22-dien-3β-ol ( 1. 926 % ) , ergosta-5,8,22-trien-3β-ol, ( 3/3,22E ) ( 0.618 % ) , fucosterol ( 0. 595 % ) and α-sitosterol(0. 566 % ). Among ketones( 1. 066 % ) there were 13a-androsta-5,7-dien-3-one, 17,19-diacetoxy-4,4-dimethyl (0. 336 % ),17α-acetoxypregnenolone(0. 730 % ); Except β-sitosterol, all other sterols were first reported in G. biloba leaves.
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