糖合成

ErmE derived from Saccharopolyspora erythraea, which encodes a ribosome dimethyltransferase, was expressed in S. thermotolerans, to increase the substance resistance during the biotransformation of tylosin to AIV.

研究表明acyB2基因应该是碳霉素生物合成基因簇中的一个全局性正调控因子，它不仅负责对acyB1基因的正调控作用，而且还至少负责对acyA基因和红霉糖糖基转移酶基因的正调控。

It is very suitable for pentaerythritol derivatives to be applied to synthesize new glycocluster and glycodendrimer because of their special structural characters.

由于季戊四醇衍生物本身所具备的结构特点，这类分子非常适合于合成新型的糖簇分子和糖树枝状分子。

The first, selecting Mannitol of polyhydric and Dextran ofpolysaccharide as subsidiary material, In accordance with differentusing quantities, making up eight recipes, freeze-drying test is madewith eight recipes differently. By adjusting recipe, to select themethod of two factors three levels. The best recipe determined is thatof Mannitol(160mg/bottle) and Dextran(40mg/bottle), Solving theproblem of description、moisture(≤1.5%)、solution(≤6s)、stability(95.0～110.0%) etc., The quality of preparation has beenimproved.

首先，选择赋形剂多元醇类的甘露醇和多糖类的右旋糖酐作为辅料，按照不同的用量，组合成8种处方进行冷冻干燥试生产，采用二因素三水平的满因子分析法，通过处方调整，确定甘露醇160mg／瓶、右旋糖酐40mg／瓶为最佳处方，解决了冻干制剂在性状、水分(≤1.5％)、溶解性(≤6s)和含量稳定性(95.0～110.0％)等方面的不足，提高了产品质量。

Validamycins have been one of the most popular and economical biopesticides in China, by microbial transformation of which validoxylamine A and valienamine can be produced. Validoxylamine A has strong inhibition on trehalase and it is a new promising insecticide. Valienamine demonstrates strong glucosidase inhibitory activity, which can also be used as intermediate in the synthesis of medicines for diabetes.

井冈霉素目前已成为我国最经济最受欢迎的生物农药之一，用微生物转化法分解井冈霉素可以得到井冈霉亚基胺A和井冈胺，前者对海藻糖酶有强烈的抑制作用，有望开发成为新型生物杀虫剂，而后者是一种糖苷酶抑制剂，也可作为合成降糖药的原料。

The 1,3-2,4-di (3,4-dimethylbenzy-lidene) xylitol was synthesized by means of aldol condensation reaction with xylitol and (3,4-dimethyl) benzaldehyde as raw materials and paratoluenesulfonic acid as catalyst.

以木糖醇和3，4-二甲基苯甲醛为原料，在酸催化下进行醇醛缩合反应，合成了1，3-2，4-二（3，4-二甲基）苄叉木糖醇。

Recent progress in regioselective synthesis of oligosaccharides with lightly protected glucosamine and galactose as acceptors was also outlined.

本文同时简述了用少保护的半乳糖和氨基葡萄糖为糖基受体合成寡糖的进展。

The increasing singlets of protons from acetyl group of product were treated as a reporter of the reaction progress. The reaction yields are calculated by the HR/MAS NMR.

利用四个羟基未保护的Nα-Fmoc氨基酸和七种全乙酰化糖为原料，合成了28个糖基化Nα-Fmoc氨基酸，均用高分辨魔角核磁共振技术定量。

The courses offered in this program include political theory, foreign languages, numerical analysis, application of computer techniques, chemical structures of plant fibers, pulp preparation chemistry, pulp and paper making technology, computer simulation of equipment and processes, sugar science and engineering, sugar making technology and equipment, biochemical technology, microorganism enzymes, enzyme engineering, fermentation technology, biochemical engineering and control theory, biochemical separation technology, biological catalyst technology, leather processing theory and technology, leather cleaning technology and theory, leather testing techniques, synthesis and application of chemical leather products, thermodynamic processes in light industry equipment, light industry enterprise management, product quality control, etc.

研修的主要课程有：政治理论课、外语课、数值分析、计算机应用技术、植物纤维化学结构及其研究方法、制浆化学、制浆造纸工艺、设备及过程计算机模拟、糖品科学与工程、现代制糖工艺与装备、现代生化技术、微生物酶学、酶工程、发酵工程技术、生化工程及控制概论、生化分离工程、生物催化技术、皮革现代加工理论与技术、皮革清洁工艺及理论、现代皮革检测技术、皮革化学制品合成及应用、轻工真空设备的热工过程、轻工企业管理及产品质量控制等。

The courses offered in this program include political theory, foreign languages, numerical analysis, application of computer techniques, chemical structures of plant fibers, pulp preparation chemistry, pulp and paper making technology, computer simulation of equipment and processes, sugar science and engineering, sugar making technology and equipment, biochemical technology, microorganism enzymes, enzyme engineering, fermentation technology, biochemical engineering and control theory, biochemical separation technology, biological catalyst technology, leather processing theory and technology, leather cleaning technology and theory, leather testing techniques, synthesis and application of chemical leather products, thermodynamic processes in lig

研修的主要课程有：政治理论课、外语课、数值分析、计算机应用技术、植物纤维化学结构及其研究方法、制浆化学、制浆造纸工艺、设备及过程计算机模拟、糖品科学与工程、现代制糖工艺与装备、现代生化技术、微生物酶学、酶工程、发酵工程技术、生化工程及控制概论、生化分离工程、生物催化技术、皮革现代加工理论与技术、皮革清洁工艺及理论、现代皮革检测技术、皮革化学制品合成及应用、轻工真空设备的热工过程、轻工企业管理及产品质量控制等。

Von willebrand factor is one glycosylated protein synthesized by blood vessel endothelial cell.Thrombomodulin is one glucoprotein which exists in blood vessel endothelial cell surface.Both of their levels are increased obviously when endotheliocyte is damaged,so they could be considered as the molecular markers reflecting endothelial injury.

血管性假血友病因子是血管内皮细胞合成的一种糖基化蛋白，血栓调节蛋白是位于血管内皮细胞表面的糖蛋白，内皮细胞损伤时，二者水平均显著升高，因此它们作为反映内皮损伤的分子标记物。

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。