低聚糖

The result suggests that wheat from the regional trial of Sichuan province have a wide range of the pentosan content, but a little lower SDS sedimentation value.

结果表明，各参试材料间的戊聚糖含量差距较大，SDS沉降值偏低，戊聚糖含量与SDS值并无直接的相关性。

Degradation of chitosan by sodium nitrite is a fast and molecular weight-controllable method for preparation of low molecular weight chitosan.

用亚硝酸钠降解壳聚糖是一种制备低分子量壳聚糖的快速且分子量可控的方法。

High concentration and high gene expression of SuSy and β-1,3-glucanase in cotton fiber resulted in a long period and tempered cellulose accumulation and high strength fiber formation.

其中，高强纤维品种蔗糖合酶的基因表达量铃龄25d时明显高于低强纤维品种，而β-1，3-葡聚糖酶的基因表达量则在铃龄10~25d高于低强纤维品种。

With the salt effect theory, the influence of external-added salts (LiCl, NaCl, KCl, LiBr, NaBr, KBr, MgCl2, CaCl2, SrCl2) concentration on adsorption rate of benzoic acid by crosslinked chitosan resin in trinal system (acid + water + salt) is discussed.

利用电位法，跟踪观察交联壳聚糖树脂在不同环境体系吸附低浓度苯甲酸的行为，结合盐效应理论讨论了在三元体系中，LiCl、NaCl、KCl、LiBr、NaBr、KBr、MgCl2、CaCl2、SrCl2 9种外加盐对交联壳聚糖树脂吸附苯甲酸吸附速率的影响。

Low molecular weight by viscometry from 2000 to 9000 can be prepared by degrading 1 g chitosan under this condition.

在此条件下降解1g粘均分子量为146万的高分子壳聚糖，可得到粘均分子量为2×10~3～9×10~3的水溶性低分子量壳聚糖。

The generated difference between the enzymatic hydrolysis of two kinds of xylan was compared, and for explanation some possible reasons were discussed in this paper.

对采用选择性控制木聚糖酶水解条件制备低聚木糖进行了研究，并同时探讨了以两种木聚糖形式－乾粉和湿桨为原料造成的酶解结果差异及其原因。

The uniform design and PTC are used in the studies on preparation for the chitosan of high deacetylate degree and low viscosity.

利用相转移催化剂与均匀设计法探讨了高脱乙酰度、低粘度壳聚糖的制备方法，找出了最佳工艺条件，在最佳工艺条件下得到了粘度为 2 6.6m Pa· s，脱乙酰度为 99.4 %的壳聚糖

Insolvable xylan was treated with 0.1% vitriol at 120℃ for 30 min, then dealt with xylanase(800 IU per g substrate) for 6 h.

采用0.1％浓度的H2SO4在120℃处理不溶性木聚糖30 min，然后加入木聚糖酶（800 IU/mg底物）水解6 h，得到低聚木糖的平均聚合度为1.43，得率为13.6％。

These results, together with the structural elucidation of the purified polysaccharides described above, indicate that the α-glucans in G. lucidum don't have any remarkable immunomdulating activities, but the effects of β-glucans on immune system depend on their glycosyl residue linkages and sugar chain conformation. Further, it is concluded that the 1, 3-linked backbone, relative lower side chain size and substitution, and a high-organized helical structure are the beneficial structural features for the immunostimulatory activity of β-D-glucans. However, the 1, 6-linked backbone may induce the immunosuppressive effect of β-D-glucans.

结合各纯化多糖的结构与构象分析的结果，可以得出以下结论：赤灵芝中的α-型葡取糖不具有显著的免疫调节作用，而β-型葡聚糖的免疫作用则与其糖链结构和糖链构象有密切关系，1，3-连接的主链，较低的分支取代率和较短的支链长度及高度有序的螺旋结构是β-型葡聚糖发挥免疫增强功能的有利结构因素，相反，1，6-连接的主链却可能引起多糖的免疫抑制作用。

A lower isoelectric point of Suc-Chi was obtained while using a chitosan with a lower molecular weight.

等电点分析结果表明，壳聚糖分子质量越小，N-琥珀酰壳聚糖的等电点pI值越低。

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。