生物技术汇报

1、Study ReportReporter: Zhang huanDate: 23rd septemberCONTENTS01 The introduction of microbial fermentation02 The application of microbial fermentation03 Document sharing04 My thoughtsThe introduction of microbial fermentation 1 微生物发酵简介1.1 微生物发酵定义 微生物发酵设备 微生物发酵技术以现代发酵技术为核心，是利用微生物的代谢活动过程，经生物转化而大规模地制造各种

2、工业发酵产品的技术。 目前 已经形成了一个品种繁多、门类齐全的独立工业体系，在国民经济中占有重要地位。 1.2 微生物发酵流程简介、1 .3微生物发酵应用 医药工业 食品工业能源工业化学工业 农业 环境保护抗生素，维生素，动物激素，药用氨基酸，核苷酸等酒类，醋，酱油，酸奶等微生物制氢，酒精，沼气有机酸，氨基酸，核苷酸，维生素改造植物基因；生物固氮；工程杀虫菌生物农药废水中重金属的去除，微生物脱硫技术城市垃圾微生物处理1 .4 微生物发酵方法直接发酵法直接发酵法 1间接发酵法间接发酵法2混合混合菌种发酵法菌种发酵法 3固定化细胞发酵法固定化细胞发酵法 4 Document sharingAbst

3、ractIn this work, Trichoderma reesei Aq-5b and Trichoderma viride NSW-XM, capable of excreting lignin degrading enzymes and cellulase were used to create a mixed culture system to hydrolyze rice straw in situ. The results showed that Aq-5b and NSW-XM were able to co-grow and produce complementary li

4、gnin degrading enzymes, namely laccase and lignin peroxidase. The two microorganisms were able to produce 22.74 g/L of reducing sugar in the optimal condition. For fermentation of the hydrolysates produced, Saccharomyces cerevisiae and Candida tropicalis NSW-NW were co-immobilized in polymer beads c

5、omposed of sodium alginate, polyvinyl alcohol, and silicon dioxide (SAPVASi O2). The beads remained intact after 4 cycles of use and provided satisfactory protection for the yeasts and a suitable microenvironment for ethanol fermentation, greatly improved the efficiency of ethanol production, shorte

6、ned the fermentation cycle and achieved yeasts recycling for continuous or batch-fed fermentation. The productivity of ethanol reached up to 2.17 g/(L h).Materials and methods 2.2.3. Enzymatic hydrolysis of rice straw by lignocellulose degradingenzymes in-situ123 2.2.1. Performance evaluation and co

7、mpatibility investigation ofstrains42.2.4. Ethanol fermentation in mixed culture system 2.2.4. Ethanol fermentation in mixed culture system II(SII(S. cerevisiae and . cerevisiae and C. C. tropicalistropicalis NSW-NWI) NSW-NWI)2.2.2. Enzyme activity in mixed culture system I(T. reesei Aq-5b and T. vi

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12、t size, color, space on the Home tab. Title, number etc.ADD YOUR TITLE HEREADD YOUR TITLE HERETitle, number etc. can be changed by clicking and reentering. You can change the font, font size, color, space on the Home tab. ADD YOUR TITLE HERETitle, number etc. can be changed by clicking and reenterin

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