二糖

The hydrolysis of birchwood xylan yielded mainly xylobiose and xylotriose, no xylose was detected by TLC. Therefore, XynA may be suitable for production of xylooligosaccharides.

XynA水解桦木木聚糖的主要产物为木二糖和木三糖，无木糖生成，说明它适合应用于低聚木糖的生产。

The most important representatives of disaccharides are sucrose, lactose, maltose and cellobiose.

二糖最重要的代表是蔗糖，乳糖，麦芽糖和纤维二糖。

In the presence of cellobiose, CDH can also reduce the products derived from guaiacol oxodation by peroxidases and therefore prevent the polymerization of these products.

在纤维二糖存在的条件下，纤维二糖脱氢酶可以还原过氧化物酶氧化愈创木酚形成的产物，并抑制产物的聚合反应。

It has unique substrate specificity, and required minimal sugar chain in the degradation direction and synthesis direction of trisaccharide and disaccharide separately.

该酶具有独特的底物特异性，其降解方向和合成方向所需的最小糖链长度分别为三糖和二糖，均比普通的葡聚糖磷酸化酶少一个糖基以上。

The resolution of the two peaks is between 0.83 and 1.11. There is no particular interaction between xylooligosaccharides and Bio-Gel P-2, and the molecular weight is the dominant factor governing the separation in this system. The purity of xylobiose to xylohexaose separated by once time is 86.94%, 82.90%, 88.30%, 64.20% and 77.89 %, respectively. xylooligosaccharides, gel permeation chromatography, polyacrylamide gel, separation

本文以Bio-Gel P-2为层析介质，以FPLC为层析系统对酶解玉米芯制备的低聚木糖进行分离研究，为后期分离低聚木糖单一组分并将其用于生理活性的研究提供了理论依据。1材料与方法1·1试验材料木二糖标准品购于Sigma公司，低聚木糖由南京林业大学生物化工

These two isolates presented typical characteristics of Streptococcus iniae with gram-positive cocci in chains, catalase negative and beta-hemolytic, growth under 10℃ and non-growth up 45 ℃, hydrolyzation of esculin and arginine, Voges-Proskauer, urease, and hippurate tests negative, fermentation of glucose, salicin, sucrose and starch, non-fermentation of arabinose, inulin, lactose, melibiose, raffinose and sorbitol.

实验结果表明，两菌株具有典型的海豚链球菌特性：在显微镜下为球形细胞，呈长短不一的链状排列，革兰氏染色阳性：在血琼脂平板上显示β溶血；1O℃生长，45℃不生长；接触酶阴性；水解七叶苷、精氨酸，VP试验、脲酶和马脲酸试验阴性；发酵葡萄糖、水杨苷、蔗糖和淀粉，不发酵阿拉伯糖、菊糖、乳糖、蜜二糖、棉子糖和山梨醇等。

The conclusion can be drawn that many kinds of Lactic acid bacteria have been found in milk and dairy products in different areas, that some strains have properties of the good adaptation to temperature and pH living medium, and that other strains have the properties of using melezitose, melibiose and raffinose and so on.

研究表明：内蒙古牧区乳及乳制品中乳酸菌的种类多、分布广；有些菌株对温度和pH值等环境条件的适应性强；有些菌株还有较强发酵利用松三糖、蜜二糖、棉子糖等糖的能力。

For amylase way to hydrolyze and produce glucose, Liguefaction temperature, PH value and saccharification time condition are strictly controlled, contents of disaccharide, trisaccharide and the Polysaccharides which are over tetrasaccharide can be reduced, and glucose quality can be improved.

淀粉酶法水解生产葡萄糖，严格控制好液化的温度、H值、化时间条件，可降低二糖三糖四糖以及四糖以上多糖的含量，提高葡萄糖的质量。

HPLC, IR and released〓 analysis indicated that the biodegradation products of the regeneratedcellulose films mainly contain oligosaccharides, cellobiose,glucose, arabinose,erythrose, glycerose, glycerol, and organic acid, the end products were 〓 andwater.

高效液相色谱和IR结果示出再生纤维素膜的主要降解产物为寡糖、纤维二糖、葡萄糖、阿拉伯糖、赤藓糖、甘露糖、甘油及有机酸，最终产物为二氧化碳和水。30℃时纤维素膜一个月后可以被培养基中的菌完全代谢掉。

Galactosidase can hydrolysis a -galactosis bond , namely it can hydrolysis galactosis complex of non-reductive ends binding α-bond, so it can hydrolysis oligosaccharides such as raffinose、 stachyose、 verbascose, et al. It also can hydrolysis heteropolysaccharide including α-galactosis bonds.

能催化α-半乳糖苷键的水解，即能水解非还原性末端以α键结合的半乳糖苷化合物，因此它能水解蜜二糖、棉子糖、水苏糖和毛蕊花糖等低聚糖，还能水解含有α-半乳糖苷键的杂多糖。

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。