食品科学 ›› 2010, Vol. 31 ›› Issue (1): 132-136.doi: 10.7506/spkx1002-6630-201001031

• 生物工程 • 上一篇    下一篇

构建具有大麦脂转移蛋白1 分泌能力的酿酒酵母

张洪波,阮 晖,玛丽开,郭 钦,张 伟,陈启和,郑晓冬,何国庆*   

  1. 浙江大学生物系统工程与食品科学学院
  • 收稿日期:2009-04-07 出版日期:2010-01-01 发布日期:2014-05-19
  • 通讯作者: 何国庆 E-mail:gqhe@zju.edu.cn
  • 基金资助:

    国家“863”计划项目(2007AA10Z300);浙江省自然科学基金重点项目(Z304076)

Construction of Saccharomyces cerevisiae Strain with Barley Lipid Transfer Protein 1 Secretory Capability

ZHANG Hong-bo,RUAN Hui,MA Li-kai,GUO Qin,ZHANG Wei,CHEN Qi-he,
ZHENG Xiao-dong,HE Guo-qing*   

  1. (School of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310029, China)
  • Received:2009-04-07 Online:2010-01-01 Published:2014-05-19
  • Contact: HE Guo-qing* E-mail:gqhe@zju.edu.cn

摘要:

为了增强纯生啤酒的泡沫性能,从酿酒酵母表达质粒YEplac181 出发,将大麦脂转移蛋白1(LTP1)成熟肽的编码序列置于酿酒酵母ADH1启动子(alcohol dehydrogenase promoter)和CYC1终止子(cytochrome C terminator)的调控下,构建大麦脂转移蛋白1 的酿酒酵母表达质粒YEp181-KAMLC。通过酿酒酵母α- 信息素信号肽的引导分泌,酿酒酵母表达的成熟大麦LTP1 被分泌到发酵液中。对发酵液的检测表明,在发酵132h 后LTP1 的产量可达到29.45mg/L。

关键词: 酿酒酵母, 脂转移蛋白1, 啤酒泡沫, 表达

Abstract:

In order to enhance the foam stability of green draft beer, barley lipid transfer protein 1 (LTP1) encoding DNA sequence from Hordeum vulgare was modified to construct yeast Saccharomyces cerevisiae expression plasmid YEp181-KAMLC of barley LPT1 using the plasmid YEplac181. The expression of barley LTP1 was regulated by alcohol dehydrogenase promoter (ADH1 promoter) and terminator cytochrome C terminator (CYC1) of Saccharomyces cerevisiae, and the matured form of barley LTP1 was secreted under the lead of α-mating factor 1 signal peptide. Fermentation for 132 h at 30 ℃ gave a yield of barley LTP1 as high as 29.45 mg/L.

Key words: Saccharomyces cerevisiae, lipid transfer protein 1, beer foam, expression

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