食品科学 ›› 2013, Vol. 34 ›› Issue (7): 1-5.doi: 10.7506/spkx1002-6630-201307001

• 基础研究 •    下一篇

红曲与产酯酵母酯化黄水代谢物特征的研究

陈 帅1,赵金松1,郑 佳1,刘琨毅1,黄 钧1,周荣清1,2,3,*   

  1. 1.四川大学 制革清洁技术国家工程实验室,四川 成都 610065; 2.四川大学轻纺与食品学院,四川 成都 610065;3.国家固态酿造工程技术研究中心,四川 泸州 646000
  • 收稿日期:2012-02-21 修回日期:2013-01-24 出版日期:2013-04-15 发布日期:2013-03-20
  • 通讯作者: 周荣清 E-mail:zhourqing@scu.edu.cn
  • 基金资助:
    国家自然科学基金项目(31171742);四川省重大攻关项目(09ZC0735)

Microbial Esterification of Organic Acids in Yellow Water by Monascus purpureus and Yeasts: A Comparative Study

CHEN Shuai1,ZHAO Jin-song1,ZHENG Jia1,LIU Kun-yi1,HUANG Jun1,ZHOU Rong-qing1,2,3,*   

  1. 1. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China; 2. College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, China; 3. National Engineering Research Center of Solid-State Brewing, Luzhou 646000, China
  • Received:2012-02-21 Revised:2013-01-24 Online:2013-04-15 Published:2013-03-20
  • Contact: ZHOU Rong-qing E-mail:zhourqing@scu.edu.cn

摘要: 以酿酒副产物黄水为基质,比较红曲霉AS 3.972和产酯酵母2.10、2.178生物催化的产物特征。基于气-质联用(GC-MS)对其产物进行检测。结果表明:不同微生物菌株转化有机酸及产物组分的能力不同。红曲粗酶转化有机酸的能力较酵母2.10和2.178的稍高,酯化能力较强,较后两者分别高出56.81%和80.85%,并检出己酸乙酯、辛酸乙酯等13种酯类组分,挥发组分的结构轮廓与浓香型白酒的类似。红曲粗酶催化产物的主成分以及OAV分析说明,基于红曲粗酶的黄水资源化技术具有更高的应用价值。

关键词: 黄水, 产酯微生物, 生物转化, 气-质联用, 酯化产物

Abstract: Comparison of Monascus purpureus AS 3.972 and Pichia anomala 2.10 and Saccharomyces cerevisiae 2.178 was carried out for the microbial esterification of organic acids in yellow water as a by-product of Chinese liquor making. The fermentation products were analyzed by GC-MS. These three microbial strains showed different esterification efficiencies for organic acids in yellow water and resulted in the formation of different products; the esterification efficiency of Monascus purpureus AS 3.972 was 56.81% and 80.85% higher than Pichia anomala 2.10 and Saccharomyces cerevisiae 2.178, respectively and resulted in the formation of 13 esters such as ethyl hexanoate and ethyl caprylates and a similar volatile profile to luzhou-flavor liquor. PCA and OAV analysis suggested that Monascus purpureus AS 3.972 was more suitable for the bioconversion of yellow water than yeasts.

Key words: yellow water, aroma-producing microorganisms, biotransformation, gas chromatography-mass spectrometry (GC-MS), esterification products

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