| 海洋细菌Pseudomonas sp.色素的提取及稳定性的研究 |
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| 引用本文： | 袁保红,杜青平,蔡创华,周世宁.海洋细菌Pseudomonas sp.色素的提取及稳定性的研究[J].海洋通报,2005,24(6):92-96. |
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| 作者姓名： | 袁保红 杜青平 蔡创华 周世宁 |
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| 作者单位： | 广东药学院微生物学与免疫学教研室,广东,广州,510006;山西大学生命科学和技术学院,山西,太原,030006;中国南海海洋研究所,广东,广州,510301;中山大学生命科学学院,广东,广州,510275 |
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| 基金项目： | 国家高技术研究发展计划（＂863＂）资助项目（2001AA620401） |
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| 摘 要： | 对分离自广东大亚湾表层海水的一株海洋细菌（Pseudomonassp.）所产的灵菌红素,作了提取和稳定性分析,探讨了酸度、温度、紫外线、金属离子对色素稳定性的影响.结果证明,灵菌红素在pH 2～pH 5之间稳定性很好,在碱性环境中稳定性差;在pH=3时该色素的热稳定性好,pH＞5时其热稳定性较差;紫外线随溶液的pH增大对色素的稳定性影响越大,pH=9时的影响最大;Zn^2＋对该色素有增色作用,Mg^2＋和Mn^2＋则有一定的破坏作用,Pb^2＋可以使色素产生沉淀,其它金属离子影响不大.总之,该灵菌红素各种性质比较稳定,具有作为一种天然色素资源的开发和应用价值.
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| 关 键 词： | 海洋细菌 灵菌红素 色素 |
| 文章编号： | 1001-6392（2005）06-0092-05 |
| 收稿时间： | 2005-06-28 |
| 修稿时间： | 2005-06-282005-09-12 |
Study on the Extraction and Stability of Pigments from a Marine Bacterium Pseudomonas sp. |
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| YUAN Baohong,DU Qingping,CAI Chuanghua,ZHOU Shining.Study on the Extraction and Stability of Pigments from a Marine Bacterium Pseudomonas sp.[J].Marine Science Bulletin,2005,24(6):92-96. |
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| Authors: | YUAN Baohong DU Qingping CAI Chuanghua ZHOU Shining |
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| Institution: | 1 .Department of Microbiology and Immunology, Guangdong College of Pharmacy, Guangzhou 510240, Guangdong, China; 2. College of Life Science and Technology, Shanxi University, Taiyuan 030006, Shanxi, China; 3. South China Sea Institute of oceanology, Guangzhou 510301, Guangdong, China ; 4. School of Life Sciences, Zhongshan University, Guangzhou 510275, Guangdong, China |
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| Abstract: | The extracting conditions and stability of pigments from a prodigiosin-generating marine bacterium collected from the Daya Bay in Guangdong were studied in this paper. The effects of acidity, temperature, ultraviolet ray and metal ions on the stability of the red pigment were determined in detail. The results showed that the prodigiosin pigment is stable between pH 2 and pH 5, and unstable in alkali solutions. The thermotolerance is good in pH3,which becomes weak while pH >5. Ultraviolet ray affects more with the higher pH values. Most metals have little effects on the prodigiosin pigment except Zn2+,Mg2+ , Mn2+, Pb2+. In conclusion, the chemical quality of this red pigment is stable and worth further study as a kind of natural pigment resources. |
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| Keywords: | marine bacteria prodigiosin pigment |
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