| 固定化紫色非硫光合细菌降解活性艳红X-3B的研究 |
| 摘要点击 795 全文点击 894 投稿时间：1993-12-27 |
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| 中文关键词 紫色非硫光合细菌 固定化细胞 活性艳红X－3B 脱色酶 |
| 英文关键词 purple non-sulfur photosynthetic bacteria immobilized cells decolorizing enzyme active bright red X-3B |
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| 中文摘要 |
| 采用聚集-交联法固定化紫色非硫光合细菌用于处理活性艳红X-3B染液。比较紫色非硫光合细菌和固定化细胞的某些性质,2种细胞的反应最适温度均为30-40℃,固定化细胞的反应最适pH值范围较宽,为7.5-9.4,热稳定性较好。Cu2+对2种细胞酶活力均有抑制作用;比较聚集-交联固定化细胞和海藻酸钠包埋固定化细胞的脱色能力,前者比后者酶活力较高,半衰期长,成本低,操作方法简单,易于工业化应用。 |
| 英文摘要 |
| The spent dye bath of active Bright Red X-3B was treated by using aggregation and cross linkage immobilized purple non-sulfur photosynthetic bacteria (PSBs). The PSBs and their immobilized cells were compared for some of their performances.It was found that both of the cells had an optimum reaction temperature in the range of 30-40 ℃,and the immobilized cells had an optimum reaction pH in the broader range of 7.5-9.4, with a better thermal stability. Cu2+ had an inhibitory effect on the enzyme activities of both cells. As compared with the immobilized cells entrapped in sodium alginate,the aggregation and cross linkage immobilized cells had a stronger power of decolorization, a higher activity of enzyme,a longer half lifetime and a more cost-effectiveness, and was simple to operate and easy to be applied on a full-scale. |
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