查询词典 fermentation method

The type, initial feeding time and concentration of precursor for HV unit formation had great effects on PHBV production in shake flasks. Propionate was selected as the better precursor for HV fraction than valerate after comprehensive survey of these two precursors. The suitable PHBV shaking-flask culture conditions were obtained through the analysis of PHBV fermentation process, the investigation of several factors by using RSA method and the fed-batch experiments. Cell dry weight, PHBV content, PHBV concentration, HV fraction and yield coefficient of HV unit to propionate were 27. 7g/L, 80.7%, 22. 4g/L, 16. 1mol% and 0.50g/g, respectively.

在共聚物PHBV的摇瓶发酵过程中，PHBV中HV组分形成的前体物质的种类、初始加入时间以及加入量是影响PHBV发酵过程的重要因素；在综合比较丙酸和戊酸这两种前体的基础上，选择丙酸作为HV组分合成前体较适宜；通过对PHBV发酵过程曲线分析、影响PHBV发酵指标的各因素的响应面分析以及摇瓶发酵补料试验，得到了较适宜的PHBV摇瓶发酵补料条件，在此条件下，细胞干重、PHBV含量、PHBV浓度、HV组分含量和HV组分对丙酸的产率系数可分别达到27.7g/L、80.7％、22.4g/L、16.1mo1％和

The results were as follows:(1) The method that HA was treated by ethanol of 2.5x volume for 20 hours turned out to be the most economic and efficient.(2) Zymolysis combined with deproteinization by chloroform was better than deproteinization by chloroform for several times in yield and purity of HA.(3) HA with purity of 71.1 60/o was obtained by the fermentation with cetylpyridinium chloride.

本文对发酵液中HA的分离提取方法进行对比研究，结果表明采用2.5倍体积的乙醇对HA沉淀，作用时间20小时最为经济合理；采用酶解结合氯仿除蛋白较之氯仿除蛋白，HA的产量和纯度均有所提高；经氯代十六烷基吡啶分级分离后，可得纯度为71.16％的HA产品。

A new synthesis method for 15NL-tryptophan by yeast fermentation using glucose as carbon source, ammonium sulphate as nitrogen source, and 15N anthranilic acid as a precursor is described.

以葡萄糖为碳源，硫酸铵为氮源，15N邻氨基苯甲酸为前体物，利用酵母发酵合成15NL-色氨酸，是合成15NL-色氨酸的一种新方法。

Disinfection method could be used calcareousness or potassium permanganate.the best way feed was not pulluted by verminnosis which fertilized fermentation manure.

消毒方法可用石灰水或高锰酸钾溶液浸泡，最好的方法是在种植饲料的场地，不用猪粪或只用发酵过的猪粪施肥，以防虫卵污染。

Using potato as main raw material and adopting, the liquid hyphae fermentation; bringing a great deal of hyphae in fermented liquor,and picking up the extract from the liquor,then the Collybia radicata cola is made with normal groovy method.

以马铃薯为原料，采用液体菌丝发酵，在发酵液中产生大量的菌丝体，提取金针菇发酵醪液，然后按可乐加工的常规工艺添加各种可乐基料，配制成金针菇可乐。

Using potato as main raw material, adopt the liquid hyphae fermentation, bring a great deal of hyphae in fermented liquor, and pick-up the extract from the liquor, then make out the Collybia radicata cola with normal groovy method.

以马铃薯为原料，采用液体菌丝发酵，在发酵液中产生大量的菌丝体，提取金针菇发酵醪液，然后按可乐加工的常规工艺添加各种可乐基料，而配制成金针菇可乐。

An improved colorimetric method was developed for the determination of lactic acid in fermentation broth.

对传统的对羟基联苯法进行了优化，应用于定量测定发酵液中的乳酸。

Malolactic fermentation was a kind of deacidification method induced by lactic acid bacteria in wine.

苹果酸-乳酸发酵是葡萄酒中乳酸菌进行的细菌降酸过程。

ABSTRACT Malolactic fermentation was a kind of deacidification method induced by lactic acid bacteria in wine.

摘 要 苹果酸-乳酸发酵是葡萄酒中乳酸菌进行的细菌降酸过程。

The present invention relates to a method for preparing long-chain dibasic acid diester by using long-chain dibasic acid produced by fermentation process.

本发明涉及一种长链二元酸双酯的制备方法，尤其是一种用发酵法生产的长链二元酸制备长链二元酸双酯的方法。

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。