贵妃枇杷花提取液挥发性成分GC-MS分析  

Aromatic Compounds in Essential Oil of Guifei Loquat Flowers

作　　者：蒋际谋[1,2] 胡文舜[1,2] 姜帆[1,2] 陈秀萍[1,2] 邓朝军[1,2] 许奇志[1,2] 郑少泉[1,2] 

机构地区：[1]福建省农业科学院果树研究所,福建福州350013 [2]福建省龙眼枇杷育种工程技术研究中心,福建福州350013

出　　处：《福建农业学报》2013年第6期545-551,共7页Fujian Journal of Agricultural Sciences

基　　金：国家公益性行业(农业)科研专项(201003073);农业部作物种质资源保护项目(NB2130135);农业部热带作物种质资源保护项目(12RZZY-15);农业部农业科研杰出人才及其创新团队;福建省自然科学基金项目(2011J01099)

摘　　要：采用顶空固相微萃取与GC-MS联用技术,对贵妃枇杷花水蒸气蒸馏不同阶段提取液的挥发性成分进行检测分析。结果表明:按料液质量比1∶1依次收集的第一、二、三阶段提取精油中,分别检测出56、61和48种挥发性成分,占总含量的96.27%、94.73%和96.08%,其中相同成分25种;第一和第二阶段主要成分是醛类物质(分别占70.19%、60.03%),苯甲醛含量最高,分别占56.01%和50.22%;第三阶段以酯类(45.14%)和醇类物质(22.28%)为主,其中L-抗坏血酸-2,6-二棕榈酸酯含量最高,占20.4%。可见不同提取阶段的挥发性成分与含量存在较大差异,可为枇杷花精油生产工艺提供参考。Volatiles in Guifei loquat flowers were extracted by the conventional steam distillation method,and subsequently,separated using GC followed by the structure identification by MS.A total of 56,61and 48 chemicals,constituting 96.27%,94.73%,and 96.08% of the total,respectively,were obtained from three extraction stages in their 1∶1water solutions.Twenty-five of the chemicals were commonly existed in all three extracts.The majority of the volatiles in the first-and second-stage extracts was aldehydes（70.19%and 60.03%,respectively）with benzaldehyde in the greatest amounts（56.01% and 50.22%,respectively）.Of the volatiles in the third-stage extract,45.14% were esters and 22.28%alcohols,and the single chemical in the greatest quantity,as much as 20.4%,was l-（＋）-ascorbic acid 2,6-dihexadecanoate.The results obtained should be useful for the development of essential oil extraction from loquat flowers.

关 键 词：枇杷花 精油 GC-MS 

分 类 号：S667[农业科学—果树学]