微囊藻毒素生物降解研究
毕业论文关键词 微囊藻毒素 毒性 生物降解法
Title Biodegradation of microcystin Abstract One of the most important hazards caused in the in the pollution in the cyanobacterial blooms is to produce and release in the variety in the algal toxin microcystin-based. their presence in drinking water can cause cancer in humans, therefore pose a serious threat to people's health. MC has an annular spaced double bond structure, its physical in the chemical properties are very stable. Able to maintain a long time does not decompose at high temperature in the 300℃ in the conventional water treatment processes is difficult to effectively remove and the polypeptide decomposition enzymes cannot break it down, but in the nature, some special microbial degradation MC. The extracellular enzyme of White rot fungi can degrade a variety of organic matter and are low cost, safe, conducive to ecological repair. Therefore, the use of white rot fungi to remove extracellular enzymes MC is a very promising approach. Analysis of the experimental results can conclude that it has higher requirements of operation level to degrade microcystin By white rot fungus extracellular enzymes in the entire training process. In this study, white rot fungi cultured extracellular enzyme activity is low, the training process is to determine the initial operational errors, the adverse factors of production and extracellular enzyme activity should be optimized in a subsequent process in strict training steps to improve training success rate
Keyword Microcystin Toxicity Biodegradation
目录
1前言 · 1
1.1微囊藻毒素基本介绍 1
1.2 微囊藻毒素检测方法 3
1.3 微囊藻毒素处理技术 4
1.3.1 物理法去除 MC · 4
1.3.2 化学法去除 MC · 5
1.3.3 光催化降解 · 6
1.3.4 微生物降解 · 6
1.4 研究目的和研究内容 7
1.4.1 研究目的 7
1.4.2 研究内容 7
2 微囊藻毒素提取实验研究 7
2.1 材料与方法 7
2.1.1 藻种的接种和培养 7
2.1.2 主要试剂和仪器设备 · 8
2.1.3 微囊藻毒素 MC-LR 的提取 · 9