乙酸

In this paper,extrusion processing and addition of vitamin E were studied for the stability of rice bran .

采用Sevag法、三氯乙酸法和酶法对米糠多糖进行脱蛋白研究。

Based on the results of the previous Plackett-Burman design, four key factors was chosen, namely fermentation time, whey powder, saccharose and sodium acetate.

在使用Plackett-Burman设计试验的基础上，筛选出发酵时间、乳清粉、蔗糖和乙酸钠为鼠李糖乳杆菌Ls-8菌株发酵产抑真菌活性物质的4个关键影响因子。

For utilization the untouchable skeleton of sapogenin, we started from tigogenin , through oxidation , opening of E, F ring, turning...

于是我们从剑麻皂甙元出发，经七步反应得到胆甾-3，26-二乙酸酯-16烯-22酮，总收率35.9％。

The method to calculate the rate constant of the acetic ether saponification is in this way improved in this paper.

对乙酸乙酯皂化反应实验数据处理方法进行了改进，该方法无须测定初始电导，避免了初始电导的测定误差给计算结果带来的影响对两组实验数据进行了计算，结果表明，该方法简单、易操作，并有较高的精

Result: Ethyl acetate extract of sappanwood can evidently reduce the content of CD4~+ of T cell and the ratio of CD4~+/ CD8~+, moreover have no infection on the content of CD8~+ of T cell.

结果：苏木乙酸乙酯提取物组同空白对照组相比能明显降低CD4~+T细胞含量并降低CD4~+/CD8~+的比值，而对CD8~+T细胞的含量无影响。

Ethyl acetate extract of sappanwood can reduce the content of CD4~+ of T cell and the ratio of CD4~+/ CD8~+ of spleen,possess determinate function on immuno-supression.

苏木乙酸乙酯提取物能降低正常小鼠脾细胞CD4~+T细胞含量并降低CD4~+/CD8~+的比值，具有一定的免疫抑制作用。且无量效关系。

Ethyl acetate extract of sappanwood is dilued with olive oil.use the equivalent dosage of active compound sappanwood 35g, 45g, 55g/kg to intragastric administration;blank control group use 0.2ml/10g olive oil to intragastric administration.

苏木乙酸乙酯提取物用橄榄油稀释，以相当于原药苏木35g、45g、55g/kg的剂量灌胃；空白对照组灌服同体积的橄榄油。连续灌胃8天后处死。

Then esterification of 3, 7-dimethyl-2-pentadecanol with acetic anhydride, the active component of sex pheromone of pine sawfly, 3, 7-dimethyl2-pentadecanyl acetate was obtained in 83. 4％ yield.

最后，用乙酸酐对3，7-二甲基-2-十五碳醇进行酯化，得到松叶蜂性信息素的活性组分--3，7-二甲基-2-十五碳醇乙酸酯，收率为83.4％。

METHODS: Chitosan scaffolds were prepared by 6% chitosan based hydrolgels produced from acetic acid and chitosan. Schwan cell of neonatal rat sciatic nerves was cultured using enzymatic digestion adherent method.

以6%壳聚糖乙酸水溶胶制备壳聚糖支架，取乳鼠坐骨神经采用酶消化后组织块贴壁培养的方法培养许旺细胞。

ABSTRACT:OBJECTIVETo investigate the effects of ethyl acetate extract of the selaginella tamariscina on vasotonia and its underlying mechanisms.

探讨卷柏乙酸乙酯提取物穗花杉双黄酮对血管紧张性的影响及其可能的机制。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。