不同产地佛手的挥发油成分比较分析
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篇名: 不同产地佛手的挥发油成分比较分析
TITLE: Comparative Analysis of the Components of Volatile Oil in Citrus medica from Different Producing Areas
摘要: 目的:比较不同产地佛手挥发油成分的差异。方法:采用水蒸气蒸馏法提取10个不同产地佛手挥发油并计算得率;采用气质联用法分析不同产地佛手挥发油中化学成分;通过NIST14.L数据库进行化合物检索并鉴别;采用峰面积归一化法测定各化学成分的相对质量分数;采用SPSS20.0软件对样品进行聚类分析。结果:10个不同产地佛手挥发油得率为0.10%~1.75%,其中以四川乐山市犍为县样品最高(1.75%)。不同产地佛手挥发油共鉴别出66个成分,相对分子量为126.20~392.66,以C10和C15化合物居多;相对分子量为136、154的同分异构体所占比例较大,主要为环烃基单萜烯类成分。不同产地佛手挥发油有12个共有成分,按相对质量分数由大到小依次为柠檬烯(24.90%)、萜品烯(14.71%)、(-)-4萜品醇(2.88%)、柠檬醛(2.33%)和α-没药烯(2.33%)、香叶醇(1.52%)、α-蒎烯(1.37%)、反式佛手柑油烯(1.16%)、异松油烯(1.13%)、棕榈酸甲酯(1.12%)、芳樟醇(1.09%)、乙酸香叶酯(1.04%);其中8个为单萜烯类成分,2个为倍半萜烯类成分,2个为酯类成分。不同产地佛手可聚为4类,即S2、S4、S6聚为一类,S1、S3、S7、S8聚为一类,S5、S10聚为一类,S9为一类。结论:不同产地佛手的挥发油成分存在一定的差异,同一成分的含量在不同产地佛手挥发油中也存有差异。
ABSTRACT: OBJECTIVE:To compare th e difference of the components of volatile oil in Citrus medica from different producing areas. METHODS :The volatile oil of C. medica from 10 different producing areas was extracted with steam distillation ,and the yield was calculated. The components of the volatile oil of C. medica from different producing areas were analyzed by GC-MS. The compounds were retrieved from NIST 14.L mass spectrum database and identified. Relative mass fraction of chemical component was determined by peak area normalization method. Cluster analysis of samples were performed by using SPSS 20.0 software. RESULTS:The yields of volatile oil of C. medica from 10 different producing areas were 0.10%-1.75%,among which sample from Qianwei county in Leshan city of Sichuan province was the highest (1.75%). A total of 66 components were identified in the volatile oil of C. medica from different producing areas ,with a relative molecular weight of 126.20-392.66. The majority was C 10 and C 15 compounds;isomers with relative molecular weight of 136,154 took up the great proportion ,which were mainly cycloalkane monoterpenes. There were 12 common components in the volatile oil of C. medica from different areas ,which were limonene(24.90%),terpinene(14.71%),(-)-4 terpineol(2.88%),citral(2.33%),α-myrrhene(2.33%),geraniol(1.52%), α-pinene(1.37%),trans bergamot olene (1.16%),isoterpinene(1.13%),methyl palmitate (1.12%),linalool(1.09%)and geranyl acetate(1.04%)according to relative mass fraction ;8 of them were monoterpenes ,2 were sesquiterpenes and 2 were esters. There were 4 categories of C. medica from different producing areas ,i.e. S 2,S4,S6 clustered into one ;S1,S3,S7,S8 clustered into one ; S5 and S 10 clustered into one ;S9 as one . CONCLUSIONS : There are some difference of the components in volatile oil of medica from different producing areas ,and the content of the same component also has great difference in the volatile oil of C. medica from different producing areas.
期刊: 2020年第31卷第04期
作者: 赵永艳,张军银,彭腾,何沛煜,匡宇
AUTHORS: ZHAO Yongyan ,ZHANG Junyin ,PENG Teng,HE Peiyu,KUANG Yu
关键字: 佛手;挥发油;产地;气质联用法;成分
KEYWORDS: Citrus medica ;Volatile oil ;Producing area ;
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