发酵法

Preparation of pyruvate can be achieved by chemical catalytic synthesis, microbial fermentation and biocatalysis.

丙酮酸的生产方法主要有化学催化合成法、微生物发酵法和生物催化法。

In the traditional lactic acid production methods, DL-lactic acid can be synthesized by chemosynthesis method, its cost is too high and its raw materials are venomousness; Optical purity lactate can be produced by Enzyme catalysis. Due to it"s more complicated technology and it"s high demanding for working condition, microbial fermentation has become the important method to produce lactic acid.

传统的乳酸生产方法中，化学合成法所用原料有剧毒，生产成本高：酶法生产乳酸工艺比较复杂，对生产条件要求较高，因此微生物发酵法生产乳酸成为乳酸生产的主要方法。

Acetoin is one of the widely-used flavors,which is mainly chemically synthesized and produced by microbe.

乙偶姻是一种应用广泛的食用香料，目前主要通过化学法合成和生物发酵法制备。

Various synthetic method of 1,3-propanediol were introduced and compared, including hydration and hydrogenation of acrylaldehyde, carbonylation of epoxy ethane , microbiological fementation, the process starting from methyl aldehyde, etc.

介绍了1，3-丙二醇的几种制备方法，即丙烯醛水合-氢化法、环氧乙烷羰基化法、微生物发酵法和以甲醛等为原料的方法。

Objective To determine whether antibiotic resistance probability of Coliform bacteria in sanitary sewage is in existence. Methods Coliform bacteria has been separated from Sanitary sewage samples of Nanning Langdong sanitary sewage plant,and its antibiotic resistance has been detected to seven kinds of antibiotics,including Benzylpenicillin, rythromycin, Ampicillin, Gentamicin, Cefazolin, Amikacin, Cefotaxime.

目的 检测生活污水中肠菌群对当常用抗生素是否有耐药性方法采集南宁市琅东污水处理厂初沉池中的水样，用管发酵法分离其中大肠菌群，采用药敏试纸扩散法，检测了分离出来的大肠菌群对七常用的抗生素包括青霉素、红霉素、庆大霉素、阿米卡星、先锋霉素Ⅴ、先锋噻肟和氨苄西林的耐药性。

It is certain that fermentative processes replace chemical synthesis as xylitol production.

用发酵法取代化学法生产木糖醇是必然的趋势。

The contents of residual chlorine in the sewage samples were determined with iodometric titration method and the fecal coliform counts of the sewage were determined using multi-tubes fermentation method.

采集2003、2004、2005年和平区14家医院排放的污水，每季度监测1次，采用碘量法测定医院排放污水中余氯的含量，采用多管发酵法测定废水中的粪大肠菌群数。

We anticipate the demand of formaldehyde will up to 2,930,000 tons, and 1,320,000 tons of methanol will be consumed;② At present, the acetic acid mainly produced by food zymotechnics or ethane in our country, along with the development of synthesizing acetic acid process with methanol, the demand of methanol will increase rapidly.

预计2010年甲醛需求量将达到293万吨，届时消费甲醇达132万吨；②目前我国醋酸生产多采用粮食发酵法或乙烯法，随着甲醇羰基合成醋酸工艺的发展，对甲醇的需求将迅速增加。

MethodsThe mycelium growth of Ganoderma lucidum was determined by plate culture method and biomass by submerged culture method.

平板法测定灵芝菌丝的生长和摇瓶发酵法测定灵芝的生物量。

The thesis investigated the analysis approach of citrulline and the producing process of citrulline by extract process and fermentation....

本文建立了瓜氨酸的分析方法，研究天然提取法及发酵法制备瓜氨酸的工艺，试图找到一条原料易得，成本低廉，生产方便，产品质量高的路线，为今后工业化生产瓜氨酸奠定基础。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。