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高效降解微囊藻毒素食酸戴尔福特菌USTB-04的培养与活性研究

Keywords: 微囊藻毒素,食酸戴尔福特菌USTB-04,生物降解,培养,活性

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Abstract:

主要针对筛选的高效降解微囊藻毒素(microcystins,MCs)的食酸戴尔福特菌USTB-04(Delftiaacidovorans,DA菌)的培养方法进行了研究。结果表明,以葡萄糖、甘油和乙醇作为惟一碳源时,与氯化铵和尿素相比,酵母粉是支持DA菌生长的较好氮源。在以酵母粉作为惟一氮源时,与甘油和乙醇相比,葡萄糖是提高DA菌生长速度的较好碳源。进一步研究显示,以葡萄糖和酵母粉作为碳源和氮源时,可以支持DA菌的快速稳定生长,但在以甘油和酵母粉作为碳源和氮源时,培养出的DA菌降解MCs的比活性最高。此研究在培养高细胞浓度DA菌作为生物催化剂用于饮用水源中的MCs去除方面具有重要意义。

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