| 酿酒酵母220菌株对铅的生物吸附研究* |
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| 引用本文： | 宋安东, 吴坤, 陈红歌, 常国林, 王爽,.酿酒酵母220菌株对铅的生物吸附研究*[J].微生物学通报,2004,31(3):6-10. |
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| 作者姓名： | 宋安东 吴坤 陈红歌 常国林 王爽 |
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| 作者单位： | 1. 河南农业大学生物技术与食品科学学院,郑州,450002
2. 南阳市环境检测站,南阳,473060 |
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| 基金项目： | 河南省杰出人才创新基金资助项目(No.321001300) |
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| 摘 要： | 在含铅培养基中培养酿酒酵母220，发现该菌对铅有一定的抗性。将培养好的酿酒酵母220接入含铅培养基中并对该菌吸附铅的能力进行研究，结果表明，在30℃时，该菌对6mg/L的含铅溶液有最大的吸附率，吸附率为96．6％，吸附平衡时间为25～30min，吸附的动力学方程为q=26．318C／(1 0．437C)，乙酸对吸附后的酿酒酵母220有良好的解吸作用，葡萄糖和KH2PO4可以提高酿酒酵母220对铅的吸附率。
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| 关 键 词： | 酿酒酵母 铅 生物吸附 |
| 文章编号： | 0253-2654(2004)03-0006-05 |
Study on Lead Cation Biosorption of Saccharmyces cerevisiae 220 |
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| SONG An-Dong WU Kun CHEN Hong-Ge CHANG Guo-Lin WANG Shuang.Study on Lead Cation Biosorption of Saccharmyces cerevisiae 220[J].Microbiology,2004,31(3):6-10. |
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| Authors: | SONG An-Dong WU Kun CHEN Hong-Ge CHANG Guo-Lin WANG Shuang |
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| Abstract: | Saccharmyces cerevisiae 220 has certain resistance to Pb2+ was found through the test of it's cultured on media containing lead cation. Sacchannyces cerevisiae 220 cultured was put into the media cotaining lead cation and it's biosorp-tion to lead cation was studied. The results show this strain has maximum biosorption ratio (96.6%) to 6mg/L lead cation, biosorption-equilibrilium period is 25-30min, biosorption kinitics equation is q-26.318C/ (1 + 0.437C) . Acetic acid is benefit to de-biosorption, glucose and KH2PO4 can improve biosorption ratio to lead cation. |
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| Keywords: | Sacharmyces cerevisiae Lead cation Biosorption |
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