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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (20): 115-118.

• 食品 营养 检测 安全 • 上一篇    下一篇

龙眼微生物保鲜剂挥发性物质分析

陈峥 刘波 车建美 唐建阳 朱育菁   

  • 收稿日期:2011-02-11 修回日期:2011-03-22 出版日期:2011-08-15 发布日期:2011-08-15

Analysis on Volatile Components Extracted from Microbial Fresh-keeping Agent for Fruit Longan

  • Received:2011-02-11 Revised:2011-03-22 Online:2011-08-15 Published:2011-08-15

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摘要：

利用筛选到的一株具有龙眼保鲜功能的微生物Brevibacillus brevis FJAT-0809-GLX生产的龙眼微生物保鲜剂“果立鲜”，不仅对龙眼等多种水果具有很好的保鲜作用，同时具有特殊的挥发性香气。为了解该菌株挥发性香气的成分，采用SPME/GC-MS的方法分析龙眼微生物保鲜剂“果立鲜”的挥发性物质成分24种，匹配度在90%以上的有11种。其中烷类8种，占总成分14.11%，包括正十六烷、十甲氧基五硅氧烷、十四烷、正十七烷、十八烷、2,6,10,14-四甲基-十五烷、4-甲基-十五烷、2-甲基-十五烷；烯类2种，占总成分的1.65%，包括(+)-长叶烯、(-)-α-柏木烯；酯类1种，占总成分的0.70%，为2-丙基-十四烷-亚硫酸酯。(+)-长叶烯、(-)-α-柏木烯这2种化合物是具有香气的成分，为天然的香料；2,4-二叔丁基苯酚是多种光稳定剂和抗氧化剂的重要中间体。

关键词: 小麦, 小麦, Cd积累, 基因型, 积累差异

Abstract:

The microbial longan fresh-keeping agent “GLX” was made from Brevibacillus brevis FJAT-0809-GLX, which not only had very good fresh-keeping effect toward longan and other fruits, but also had particular aroma. This experiment was designed to find out volatile components extracted from GLX. The volatile components of GLX were analyzed by SPME/GC-MS. Thirteen compounds were identified with the match degree above 90%. There were eight types of alkene in the volatile, with relative amount of 14.11%, including Hexadecane; Cyclopentasiloxane, decamethyl-; Tetradecane; Heptadecane; Octadecane; Pentadecane, 2,6,10,14- tetramethyl-; Pentadecane, 4-methyl-; Pentadecane, 4-methyl-. There were two types of alkene, with relative amount of 1.65%, including Longifolene, (+)-、Cedrene,(-)-alpha-.There was one type of esters, with relative amount of 0.70%, including sulfurous acid, 2-propyl tetradecyl ester. (+)-Longifolene, and (-)-alpha-Cedrene, two kinds of natural spice, were the aromatic compounds extracted form microbial longan fresh-keeping agent. Phenol, 2,4-bis(1,1-dimethylethyl) was the important intermediate product light stabilizer of light stabilizer and antioxidants.