二糖

Xylanases are a group of enzymes that break down xylans into xylooligosaccharides, xylose and arabinose, and thus are of high potential for use in feed, paper making and food industry.

木聚糖酶以内切方式作用于木聚糖分子中β-1，4-木糖苷键，可将木聚糖水解为木二糖和木二糖以上的低聚木糖，以及少量木糖和阿拉伯糖，在饲料、造纸和食品等行业具有广阔的应用前景。

Thin-layer chromatography analysis showed that the xylanase released mainly xylobiose and xylotriose from birchwood xylan. The hydrolysis of xylotriose appeared to proceed via transglycosylation, since the xylobiose was the predominant product.

薄层层析结果显示该酶水解桦木木聚糖的主要产物是木二糖和木三糖，并且能够通过转糖苷作用将木三糖转化为木二糖。

There are a few sugars that can not be effectively used by Saccharomyces cerevisiae in thedistillate of ethanol fermentation, mos of which are melibiose and cellobiose .

酒精发酵的糟液中含有一定量的糖未能被酿酒酵母有效利用，其中最多的是蜜二糖和纤维二糖。

After optimization of the genetic engineered enzyme,the recombinant yeast was cultivated on the medium supplied with cellobiose as sole carbon source.

使异源表面表达了Bgl1的酵母在以纤维二糖为唯一碳源的培养基中生长，发酵结果表明纤维二糖被明显利用了，但在培养186 h后，发酵液中仍残留一定量的纤维二糖。

The hydrolysis yield of bleached pulp was lower than that of unbleached pulp under similar optimum conditions. Cellobiose concentration decreased during hydrolysis from 7.95 to 2.44g/L and from 6.59 to 3.11g/L at 6h and 72h for unbleached and bleached pulp, respectively.

水解产生的纤维二糖的质量浓度随反应进行逐渐降低，其中未漂浆的纤维二糖质量浓度由6h时的7.95g/L降到了72h时的2.44g/L，漂白浆的纤维二糖质量浓度由6h时的6.59g/L降到了72h时的

According to the differences of the structures between monosaccharide and disaccharide, the relations between the characteristic spectra of disaccharides and their collective vibrational modes originated from the inter- and intra-molecules are discussed.

通过分析单糖与二糖之间分子结构的差异，讨论了二糖的THz特征吸收谱和由其分子间氢键和分子内氢键共同作用的集体振动模式之间的关系。

In borate solution, The order of effective mobilities of disaccharide-borate compolexes was saccharose＜celloiose＜ maltose＜lactose and that of polylol- borate complexes was ethylene glycol＜ propanetriol＜erythritol＜sorbitol＜mannitol＜dulcitol.

在碱性四硼酸钠溶液中二糖硼酸络合物淌度顺序为：乳糖＞麦芽糖＞纤维二糖＞蔗糖，多元醇硼酸络合物的淌度顺序为：六羟基多元醇＞四羟基多元醇＞三羟基多元醇＞二羟基多元醇。

Based on the above-mentioned, two kinds of target glycoclusters with different glycoterminus, flexible linkers and different scaffolds were designed, disaccharide glycocluster (including TM1-TM7) and trisaccharide glycocluster (TM8-TM9) respectively, with the purpose of obtaining glycoclusters with high binding affinity to anti-Gal antibody and thus better inhibiting the HAR.

基于上述，针对HAR产生的机制，以人体中天然存在的anti-α-Gal抗体及B细胞表面的相应受体为靶点，以α-Gal抗原末端的二糖Galα1→3Gal和三糖Galα1→3Galβ1-4GluNAc片段为糖基部分，采用柔性的连接臂（氨基保护的2-乙醇胺和3-巯基丙酸）和刚性的芳香骨架及柔性的脂肪链骨架，设计了两类结构新颖的糖簇分子：即氧苷和硫苷键连接的二糖糖簇TM1-TM7）和三糖糖簇（TM8-TM9），目的在于寻找与anti-Gal抗体及B细胞相应受体有较高结合力的糖簇分子，以便有效地抑制HAR反应的发生。

China rich Blueberry anthocyanins, Blueberry anthocyanins material in the pigment, anthocyanin mainly-2-glucosidase, anthocyanins-3-xylosidase, anthocyanins-3-Fu-glucoside, flowers Green-2-rhamnoside, D.-3-rhamnoside, D.-5-glucosidase, 3-o-original flower-Chui, Malvaceae pigment 3, 5-and two glucosidation 3, 3-such as stripping the original flower.

中国越橘富含花青素，越橘花青素重的色素物质，主要为花青素-2-葡萄糖苷、花青素-3-木糖苷、花青素-3-半乳糖苷、花青素-2-鼠李糖苷、翠雀花-3-鼠李糖苷、翠雀花-5-葡萄糖苷、3-O-酰原花翠素、锦葵色素-3，5-二糖甙和3，3-二-酰原花萃素等。

A comparative experiment of disaccharides and the hexoses which are the components of the disaccharides is proposed.

3对二糖和组成二糖的己糖进行了对比实验研究。

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。