试验表明HZ型固体酸是饱和直链羧酸和伯醇直接酯化的特效催化剂。
Experiment results indicated that HZ-type solid acids were ideal catalysts for direct esterification of straight chain carboxylic acids and primary alcohols.
本发明涉及在全细胞催化剂或分离的酶的辅助下从醛生产伯醇的方法。
The invention relates to a method for producing primary alcohols made of aldehydes with the aid of whole cell catalysts or isolated enzymes.
在有无硫酸铁水合物催化剂的情况下，分别测定了2-氯乙酸与六种伯醇的酯化反应速率常数；
The rate constants of esterification of 2-chloroacetic acid with 6 species of the primary alcohols were determined in the presence of and in the absence of catalyst, the hydrate of ferric sulphate.
特点：哈拉尔咖啡的特性是；优质的阿拉伯风味，甘香，略带有葡萄酒的酸香，醇度适宜，强烈纯质感，带有奇妙的黑巧克力余味。
Features: Coffee is characterized by Harald; quality Arab flavor, Ganxiang, slightly sour with wine fragrance, alcohol degree of fit, strong pure texture, with wonderful dark chocolate finish.
建立高效液相色谱测定麦糟发酵液中的阿拉伯糖、阿拉伯糖醇及木糖醇的分析方法。
Method for analysis of arabinose, arabitol and xylitol in the fermentation Liquors on Brewery's spent grain by HPLC is described.
在某些特殊型表面活性剂，如阿拉伯树胶、聚乙烯醇或其混合溶液的存在下，离子缔合物溶于水，并伴有极灵敏的颜色变化。
In the presence of some special surfactants such as Arabic gum, polyvinyl alcohol or their mixture, the associated ion is soluble in water, accompanied with very sensitive color change.
提出了以高氯酸为催化剂，分析纯乙酸乙酯为介质，乙酰化法测定伯、仲醇的实验条件，实现了对经典方法的改进，简化了操作程。
The experimental condition of acetylating method for determining priminary alcohol and secondary alcohol catalyzed by perchloric acid in the medium of analytically pure ethylacetate is proposed.
不能发酵葡萄糖、果糖、七叶灵、苦杏仁苷、阿拉伯糖、乳糖、甘露糖、核糖、蔗糖，木糖、鼠李糖、甘露醇、肌醇和山梨醇等。不能水解明胶。
They can't ferment glucose, fructose, esculin, amygdalin, arabinose, lactose, mannose, ribose, sucrose, xylose, raffinose, mannitol, inositol, sorbitol and gelatin.
建立高效液相色谱测定麦糟发酵液中的阿拉伯糖、阿拉伯糖醇及木糖醇的分析方法。
A Method for analysis of arabinose, arabitol and xylitol in the fermentation Liquors on Brewery's spent grain by HPLC is described.
建立高效液相色谱测定麦糟发酵液中的阿拉伯糖、阿拉伯糖醇及木糖醇的分析方法。
A Method for analysis of arabinose, arabitol and xylitol in the fermentation Liquors on Brewery's spent grain by HPLC is described.
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