寡糖

Oligosaccharides in these samples were hydrolyzed into glucose and mannose form with the optimized conditions, and the contents of β-Glucan and Mannan Oligosaccharides were calculated by the concentration of each monosaccharide.

样品中的低聚糖在优化的水解条件下水解得到葡萄糖和甘露糖，通过测定2种单糖的含量而得到β-葡聚糖和甘露寡糖的含量。

The molar ratio of sulfate ions to carboxylate ions is determined by conductometric titration method and the molecular weight is tested by high performance gel permeation chromatography. The precision of these two methods is also studied. To improve the detection sensitivity, guanidine hydrochloride is used as the best derivation reagent of 911. A systematic research is done on the optimum derivatization condition of 911 and Guanidine hydrochloride. The M /G ratio of 911 has direct relation to its biological activity.

论文首先对911的基本理化性质进行了系统的分析，以电导滴定法和高效凝胶渗透色谱法分别测定了分子中硫酸根羧酸根的比值和911的分子量，并探讨了两种分析方法的精密度。911分子没有紫外吸收，为提高检测灵敏度，本文采用荧光标记法，通过对三种荧光试剂与几种寡糖和多糖衍生效果的综合比较，最终确定了盐酸胍为最佳衍生试剂，并以911为代表详细探讨了衍生化反应的最优条件。911糖链结构与褐藻胶主链结构类似，以甘露糖醛酸和古罗糖醛酸的嵌段形式存在，分子中M/G比值与911的物理化学性质和生物活性有直接关系。

The mechanism in which trehalose is produced from dextrin or starch hydrolyzate by endocellular enzymes of bacterium D-97 can be elucidated by high performance liquid chromatography with differential refraction detection basically, including the effect of the different carbon sources on the endocellular trehalose-producing enzymes in bacterium D-97 and the possibility or ability of the endocellular enzymes to produce trehalose using maltooligosaccharides of different chain lengths.

通过高效液相色谱/示差折光检测系统分析可获得细菌D-97利用糊精或淀粉水解物合成海藻糖的基本生物学信息，包括微生物培养碳源对细菌D-97胞内海藻糖合成酶系的影响以及该酶系利用不同种类或不同分子链长度的麦芽寡糖合成海藻糖的能力及作用过程。

Soybean meal contains a significant quantity of NSP-enzymes 210 to 220 g/kg of dry matter, including 55% of pectins mainly in the form of rhamnogalacturonans, as well as oligosaccharides of the agalactoside series (raffinose, stachyose and verbascose.

豆粕中含有一定数量的非淀粉多糖NSP含量210-220 g/kg DM，包括以鼠李半乳糖醛酸聚糖形式存在的55%的果胶，同时豆粕中还含有α-半乳糖苷系列寡糖(棉子糖、水苏糖和毛蕊花糖。

Raffinose family oligosaccharides are among the most widespread low_molecu lar_mass α_galactosides in seeds, mainly includes raffinose, stachyose, verbascose.

许多植物正常性种子的发育伴随着棉子糖半乳糖苷系列寡糖的累积，这些糖的累积已被认为在种子脱水耐性获得、种子活力、糖的运输及植物的抗冷驯化等过程

One of the important tools for glycoprotein research is lectins, which are known to have the ability to bind specific oligosaccharide moieties.

凝集素亲和色谱是蛋白质糖基化研究中很常用的工具，不同的凝集素可以对不同的单糖或寡糖有特异的富集作用。

Glycosyl sulfides and glycosyl sulfoxides are useful synthetic intermediates or synthons.

糖基硫苷和糖基亚砜是寡糖合成中的重要中间体或合成子。

Several glycosyl phosphate and phosphonates, as inhibitors of AGPase, were synthesized.In the synthesis of β〓-6 linked oligosaccharide phosphonates, A new method was developedfor preparation of 〓,6-〓-di-acetyl-2,3,4-〓-tri-benzyl-D-hexoses by acetylation of benzylatedmethyl glycosides in high yield under the conditions of 〓 and cat.〓.

合成了一些磷酸酯及其类似物作为嗜热AGPase的抑制剂，在研究β 1-6连接的寡糖膦酸酯的合成中，发现了制备1，6-〓-二乙酰基-苄基保护糖的新方法：苄基保护的糖苷在醋酐和催化量的硫酸作用下，在0℃反应进行7-10 min，可以选择性、高收率地得到此化合物。

Lectin can be used to analyze the structures of sugarchains.

凝集素(1ectin)是一类糖结合蛋白，能专一地识别某一特定结构的单糖或寡糖中特定的糖基序列而与之结合。

In this paper alginate oligosaccharide and fucoidan oligosaccharide were prepared and their abilities of eliciting the defence reaction were studied.

本文以海带为原材料，制备寡褐藻酸钠和岩藻寡糖，用于诱导烟草抗病性的研究，结果如下。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。