食品科学 ›› 2010, Vol. 31 ›› Issue (10): 239-243.doi: 10.7506/spkx1002-6630-201010051

• 分析检测 • 上一篇    下一篇

顶空固相微萃取法测定哈密瓜中挥发性芳香成分研究

贾 恺1,胡小松1,廖小军1,张名位2,陈 芳1,吴继红1 ,*   

  1. 1.中国农业大学食品科学与营养工程学院,农业部果蔬加工重点开放实验室,教育部果蔬加工工程研究中心 2.广东省农业科学院蚕业与农产品加工研究所
  • 收稿日期:2009-08-05 出版日期:2010-05-15 发布日期:2010-12-29
  • 通讯作者: 吴继红 E-mail:wjhcau@yahoo.com.cn

Headspace Solid-phase Microextraction Followed by GC-MS Analysis of Volatile Flavor Composition of Hami Melon

JIA Kai1,HU Xiao-song1,LIAO Xiao-jun1,ZHANG Ming-wei2,CHEN Fang1,WU Ji-hong1,*   

  1. 1. College of Food Science and Nutritional Engineering, China Agricultural University, Key Laboratory of Fruits and Vegetables
    Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, Beijing
    100083, China;2. Sericulture and Agro-processing Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou
    510610, China
  • Received:2009-08-05 Online:2010-05-15 Published:2010-12-29
  • Contact: WU Ji-hong E-mail:wjhcau@yahoo.com.cn

摘要:

采用顶空固相微萃取(HS-SPME)方法研究哈密瓜汁中挥发性芳香成分(VFC),对电解质(盐)、萃取温度、萃取时间进行单因素和正交试验。结果表明:应用PDMS/DVB/CAR(聚二甲基硅氧烷/ 二乙烯基苯/ 碳分子筛)50/30μm 萃取头,8mL 哈密瓜汁中加入2.4g 饱和电解质NaCl,在40℃萃取40min,哈密瓜GC 谱图峰面积最大,VFC 萃取和检测效果最好;该方法加标回收率为86.8%~97.6%,线性范围8.24~217ng/mL,最小检测限7.21ng/mL,方法灵敏度和重现性好。哈密瓜中主要的VFC 为乙酸乙酯、乙酸丙酯、2- 甲基丙酸乙酯、丁酸乙酯、2- 甲基丁酸乙酯、己酸乙酯、乙酸己酯和壬醛等。

关键词: 顶空固相微萃取, 正交试验, 挥发性芳香物质, 哈密瓜

Abstract:

The optimal conditions (namely NaCl amount and extraction temperature and time) for the headspace solid-phase microextraction (HS-SPME) of volatile flavor components from Jiashi muskmelon, one cultivar of Hami melon were investigated by single factor and orthogonal array design methods. The optimized HS-SPME was coupled with GC-MS to develop a method for the analysis of volatile flavor composition of Jiashi muskmelon. Results showed that the use of a PDMS/DVB/CAR fiber for the 40 min extraction at 40 ℃ of Jiashi muskmelon with NaCl added as electrolyte at 2.4 g/mL gave an optimal extraction of volatile flavor components from Jiashi muskmelon. The developed analytical method exhibited spike recoveries for ethyl 2-methylbutyrate, octanal, hexyl acetate and n-butyl acetate varying from 86.8% to 97.6%, a liner range from 8.24 to 217 ng/mL and a minimum detectable quantity of 7.21 ng/mL and demonstrated high sensitivity and reliability. Forty-two compounds were identified in Jiashi muskmelon, in which, the predominant compounds were ehyl aetate, n-popyl acetate, popanoic acid, 2-methyl-, ethyl ester, btan oic acid, ethyl ester, btanoic acid, 2-methyl-,ethyl ester, hxanoic acid, ethyl ester, aetic acid, hexyl ester and nonanal.

Key words: headspace solid-phase microextraction (HS-SPME), orthogonal array design, volatile flavor compound (VFC), Jiashi muskmelon

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