说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 戊糖和己糖
1)  Pentose and hexose
戊糖和己糖
2)  hexose affinities
己糖亲和力
3)  pentose [英]['pentəus]  [美]['pɛntos]
戊糖
1.
Research on optimum of fermentation system during co-fermentation of pentose and hexose to fuel ethanol;
戊糖和己糖共发酵生产燃料乙醇发酵体系优化研究
2.
Fermentation of Pentose and Hexose to Ethanol by PVA Immobilized Cells of Pichia Stipitis;
聚乙烯醇固定化酵母的戊糖已糖同步发酵制备乙醇
3.
In the research on a pilot plant, lignocelluloses were steam exploded, cellulose and hemicellulose were hydrolyzed with cellulose enzyme synthesized by Trichoderma reesei strain, and the resulted pentoses and hexoses were fermented to ethanol by Pichia stipitis.
含戊糖己糖的水解糖液经树干毕赤酵母发酵转化,糖利用率为87。
4)  Xylose [英]['zailəus]  [美]['zaɪlos]
戊糖
1.
The objective of this research was to evaluate the effects of factors in heated xylose compound protective disposal methods on protein protection.
本文用戊糖作为保护剂,以大豆粕为试验材料,研究了戊糖加热复合保护处理方法中各因素对蛋白质保护效果的影响。
5)  pentose ribose
戊糖核糖
6)  hexose [英]['heksəus]  [美]['hɛksos]
己糖
1.
Research on optimum of fermentation system during co-fermentation of pentose and hexose to fuel ethanol;
戊糖和己糖共发酵生产燃料乙醇发酵体系优化研究
2.
Based on the colorimetric reaction of phenol\|sulfuric acid with sugar,a new type of method of simultaneous determination of hexose and pentose by using H\|point standard addition spectrophotometric method has been presented in this paper.
基于苯酚—硫酸与糖的显色反应 ,提出了应用 H点标准加入法对己糖和戊糖进行同时测定的新方法。
补充资料:D(-)阿戊糖
分子式:C5H10O5
分子量:150.13
CAS号:10323-20-3

性质:该品为白色结晶体。熔点为159-160℃,相对密度为1.585(20/4℃),折光率1.585。易溶于水,微溶于醇,不溶于醚、甲醇和丙酮。无气味。

制备方法:由葡萄糖酸钙经降解、氧化而得。将葡萄糖酸钙和水一起加热溶解,加入乙酸钡溶液和硫酸铁溶液混配而成的铁触媒。搅拌升温至95℃,滤去沉淀。清液于40℃加入双氧水氧化,反应温度不超过56℃,反应半小时。反应液变为黑色后静置半小时,降温至40℃,再加入双氧水,按上法氧化。半小时后加入草酸,过滤,除去草酸钙。将滤液真空浓缩至糖浆状,温度不超过48℃。加无水甲醇溶解,放冷结晶,过滤。滤饼用甲醇洗涤,干燥得粗品。粗品用甲醇重结晶,得D(-)-树胶醛糖。另一种制法是将葡萄糖酸钙和葡萄糖酸铁一起用双氧水氧化,反应物过滤后用强酸性苯乙烯系阳离子交换树脂和强碱性季铵I 型阴离子交换树脂处理而得成品。

用途:作医药中间体、生化试剂。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条