食品科学 ›› 2010, Vol. 31 ›› Issue (12): 266-269.doi: 10.7506/spkx1002-6630-201012062

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南果梨采后20℃储藏期香气成分变化

冯 帆1,2,辛 广1,2,*,张 博2,李铁纯2,李书倩1,2   

  1. 1.沈阳农业大学食品学院 2.鞍山师范学院化学系
  • 收稿日期:2009-09-15 出版日期:2010-06-15 发布日期:2010-12-29
  • 通讯作者: 辛广 E-mail:xguang212@163.com
  • 基金资助:

    辽宁省自然科学基金项目(20051086)

Changes in Aroma Components of Nanguo Pear during Post-harvest Storage at 20 ℃

FENG Fan1,2,XIN Guang1,2 ,*,ZHANG Bo2,LI Tie-chun2,LI Shu-qian1,2   

  1. 1. College of Food Science, Shenyang Agricultural University, Shenyang 110161, China;2. Department of Chemistry, Anshan
    Normal University, Anshan 114005, China
  • Received:2009-09-15 Online:2010-06-15 Published:2010-12-29
  • Contact: XIN Guang E-mail:xguang212@163.com

摘要:

采用固相微萃取装置提取香气成分,用气相色谱质谱联用法测定南果梨采后20℃储藏过程中香气成分的变化。结果表明,南果梨采后储藏的前10d,香气成分种类仅为6 种;15d 时,释放香气成分的种类为13 种;20d 时为18 种,达到最多种;25d 时反而减少,仅为12 种。从南果梨中共检测鉴定出19 种化学成分,20d 时主要为:乙酸乙酯(1.49%)、丁酸乙酯(7.48%)、2- 甲基丁酸乙酯(1.43%)、己酸甲酯(1.46%)、己酸乙酯(41.76%)、乙酸己酯(11.78%)、2- 辛烯酸乙酯(1.07%)、辛酸乙酯(6.73%)、和α - 法呢烯(21.6%)。

关键词: 南果梨, 香气成分, 固相微萃取, 气相色谱- 质谱法(GC-MS)

Abstract:

In this study, solid-phase microextraction and GC-MS were employed to measure the aroma components of Nanguo pear stored at 20 ℃. The results showed that only 6 aroma components were detected in Nanguo pear in the first 10 days of post-harvest storage. The number of detected aroma components of Nanguo pear was 13 on the 15th day of storage, the maximum number, 18, appeared on the 20th day, and that was lowered to 12 on the 25th day. Totally 19 compounds were identified during he 25-day storage, of which, ethyl acetate (1.49%), butanoic acid, ethyl ester (7.48%), acetic acid, 2-methylpropyl ester (1.43%), hexanoic acid, methyl ester (1.46%), hexanoic acid, ethyl ester (41.76%), acetic acid, hexyl ester (11.78%), 2-octenoic acid, ethyl ester (1.07%), octanoic acid, ethyl ester (6.73%) and alpha-farnesene (21.6%) were the major compounds identified on the 20th day.

Key words: Nanguo pear, aroma component, solid-phase microextraction, gas chromatography-mass spectrometry (GC-MS)

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