华南理工大学学报(自然科学版) ›› 2011, Vol. 39 ›› Issue (5): 132-137.doi: 10.3969/j.issn.1000-565X.2011.05.023

• 生物工程 • 上一篇    下一篇

粤蓝链霉菌中紫罗兰蓝色素成分的分离与鉴定

邓名荣1,2 朱春华2 郭俊2 朱红惠2   

  1. 1.华南理工大学 生物科学与工程学院,广东 广州 510006;2.广东省微生物研究所 广东省菌种保藏与应用重点实验室,广东 广州 510070
  • 收稿日期:2010-10-12 修回日期:2011-02-14 出版日期:2011-05-25 发布日期:2011-04-01
  • 通信作者: 朱红惠(1970-),女,研究员,主要从事微生物资源与利用、微生物与植物互作等研究 E-mail:zhuhonghui66@yahoo.com.cn
  • 作者简介:邓名荣(1979-),男,博士生,主要从事微生物资源与利用、生物活性物质研究
  • 基金资助:

    广东省科技计划项目(2008B021400005);广州市科技计划项目(2008J1-C091);广东省科学院科技创新引导项目(cx200702)

Isolation and Identification of Violet-Blue Pigment from Streptomyces vietnamensis

Deng Ming-rong1,2  Zhu Chun-huaGuo Jun2  Zhu Hong-hui2   

  1. 1.School of Biological Science and Engineering,South China University of Technology,Guangzhou 510006,Guangdong,China;2.Guangdong Provincial Key Laboratory of Microbial Culture Collection andApplication,Guangdong Institute of Microbiology,Guangzhou 510070,Guangdong,China
  • Received:2010-10-12 Revised:2011-02-14 Online:2011-05-25 Published:2011-04-01
  • Contact: 朱红惠(1970-),女,研究员,主要从事微生物资源与利用、微生物与植物互作等研究 E-mail:zhuhonghui66@yahoo.com.cn
  • About author:邓名荣(1979-),男,博士生,主要从事微生物资源与利用、生物活性物质研究
  • Supported by:

    广东省科技计划项目(2008B021400005);广州市科技计划项目(2008J1-C091);广东省科学院科技创新引导项目(cx200702)

摘要: 为开发微生物源的天然色素作为食品着色剂,对产紫罗兰蓝色素的粤蓝链霉菌在不同培养基中的产色水平进行了测试,对接种量、培养温度、摇床转速、发酵时间4个参数进行了正交优化.利用硅胶柱层析、葡聚糖凝胶柱层析、薄层层析、高效液相色谱等方法分离纯化色素成分,利用核磁共振、质谱等方法测定结构,发现该菌在高氏合成一号培养基中色素产量最高,该培养基是合适的工业化生产基础培养基.优化的培养条件为:接种量5%,培养温度30℃,180r/min振动培养7天.从色素粗提物中纯化出7种单体化合物,分别为榴菌素、榴菌素B、醌茜兰类色素Zg、Zgg、二氢Zg及MM44785和去鼠李糖基MM44785,其中二氢Zg和去鼠李糖基MM44785是2种新化合物.

关键词: 粤蓝链霉菌, 天然色素, 纯化, 鉴定, 结构, 榴菌素

Abstract:

In order to develop natural pigments from microbes as food colorants,the production level of Streptomyces vietnamensis for violet-blue pigment was tested in different media,and such four parameters as the inoculation quantity,the culture temperature,the rotation speed and the fermentation time were orthogonally optimized.Then,the constituents of the pigment were isolated and purified by means of the silica gel column chromatography,the sephadex gel filtration chromatography,the thin-layer chromatography and the high-performance liquid chromatography,and the structure of the pigment was identified by means of the nuclear magnetic resonance and the mass spectrometry.The results show that Gauze's synthetic No.1 medium is suitable for the industrial production of violet-blue pigment due to its highest productivity,and that the optimal fermentation conditions are as follows: an inocu-lation quantity of 5%,a culture temperature of 30 ℃,a rotation speed of 180 r/min and a culture time of 7 d.Moreover,seven compounds,namely granaticin,granaticin B,MM44785,L-rhodinoside-deglycosylated MM44785 as well as quinizarin-derived pigments Zg,Zgg and dihydro-Zg,can be isolated and purified from the crude extract,among which dihydro-Zg and L-rhodinoside-deglycosylated MM44785 both possess novel structures.

Key words: Streptomyces vietnamensis, natural pigment, purification, identification, structure, granaticin