查询词典 fumaric

Synthesis of dimethyl fumarateby esterification of fumaric acid with methanol catalyzed by solid su- peracid SO_4~(2-)/TiO_2was proposed in this paper.

以SO_4~(2-)/TiO_2固体超强酸为催化剂催化富马酸与甲醇合成富马酸二甲酯，探讨了催化剂制备条件、原料配比、反应时间、催化剂用量等因素对富马酸二甲酯收率的影响。

A series of important basic and fine chemical products (such as 1,4-butyl -glycol,γ-butyrolactone, tetrahydrofuran, fumaric acid and tetra-hydride pa)can be produced when maleic anhydride is used as the raw material.

以顺酐为原料还可以生产1，4-丁二醇、γ-丁内酯、四氢呋喃、富马酸和四氢苯酐等一系列重要的基本化学品和精细化学品等。

This article microbiofilmtechonology fermention colibacillosis ASP-311 technology, to the strains to fumaric to slfia to fermetation asparate; qsdhmm oluv in movingbed emulsifications, decolourization decolourization of temperature, time, as well as the pH value of l - omniberaing conditionson decolouring asparate, the resulting effect of: movingbed or by 1.0% concentration, temperature is 60 700℃ decolourization, 0.5h, decolourization time for the pH of 6, in this condition, oluv of 3.2% absorbance at decolouring.

毕业论文翻译（本文生物学术语多，切勿使用在线翻译）本文利用微生物发酵培养技术，以大肠杆菌ASP-311为发酵菌株，以富马酸为底物来发酵生产天冬氨酸；研究了发酵液中活性炭的使用量、脱色的温度、脱色的时间以及pH值等各种条件对L-天冬氨酸脱色效果的影响，最终得出：活性炭的浓度为1.0%，脱色温度为60℃，脱色时间为0.5h，pH为6，在此条件下，发酵液的吸光度为3.2%，此时的脱色效果达到最佳。

Using microorganism fermentation cultivation technique, with escherichia coli strains of ASP - 311 for fermentation, with rich fumaric acid as the substrate to ferment produce l-aspartic acid, Study the result of activated carbon, and the temperature, the use of bleaching time and discoloring pH value of various conditions, aspartic acid decoloring effect, and finally: the concentration of carbon, decoloring temperature of 1.0% 60 degrees, the bleaching time for 0.5 h, pH for 6, in this condition, the result is the absorbency of decolour 3.2%, to achieve the best effect.

本文利用微生物发酵培养技术，以大肠杆菌ASP-311为发酵菌株，以富马酸为底物来发酵生产天冬氨酸；研究了发酵液中活性炭的使用量、脱色的温度、脱色的时间以及pH值等各种条件对L-天冬氨酸脱色效果的影响，最终得出：活性炭的浓度为1.0%，脱色温度为60℃，脱色时间为0.5h，pH为6，在此条件下，发酵液的吸光度为3.2%，此时的脱色效果达到最佳。

Fumaric acid (trans-butenedioic acid) An unsaturated dicarboxylic acid, which occurs in many plants.

延胡索酸：一种不饱和二羧酸，存在于许多植物体中。

There are several methods of industrial production of fumaric acid.

工业上有多种方法生产反丁烯二酸。

Objective］ The aim was to study the effects of pH value on adsorption of basic resin on fumaric acid.

［目的］研究pH值对碱性树脂吸附富马酸的影响。

A method to determine micro amount of meleic acid in fumaric acid is described, and the results confirmed by gas chromatography.

本文研究了反丁烯二酸试样中微量顺丁烯二酸的测定方法。

Fumaropimaric acid was prepared from rosin and fumaric acid as raw materials.

以富马酸和松香为原料制备富马海松酸。

The kinetics of the enzyme reaction , which converts fumaric acid into L--aspartic acid, has been studied.

进行了由富马酸转氨生成L－天冬氨酸的酶反应动力学的初步研究，考察了酶活性的稳定性、底物浓度和酶浓度对酶反应速率的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。