查询词典 stigmasterol

The hemisuccination process and kinetics ofβ-sitosterol and stigmasterol with succinic anhydride were studied, respectively.

为植物甾醇琥珀酸酯化反应过程和植物甾醇琥珀酸酯化产物的分离与精制过程的工业化提供理论指导和技术参数。

F. Their structures were identified as betulone (1), 3,4,5-trimethoxyphenol-β-D-glucopyranoside (2),α-amyrin (3),β-amyrin (4),β-sitosterol (5), and stigmasterol (6) by spectroscopic evidence (IR, NMR, MS, etc.) and comparision of their spectral data with those of the literatures.

F。 的乙醇提取物中分离得到6个化合物，经波谱分析及与文献数据对照确定其结构分别为：betulone (1)、3，4，5-三甲氧基苯酚-β-D-吡喃葡萄糖苷(2)、α-香树脂醇(3)、β-香树脂醇(4)、β-谷甾醇(5)和豆甾醇(6)。

Animal sterol mainly contains cholesterol; plant sterol mainly contains sitosterol, stigmasterol and compesterol etc, which exist in the plant seeds.

动物性甾醇以胆固醇为主，植物性甾醇主要为谷甾醇，豆甾醇和菜油甾醇等，存在与植物种子之中。

Examination of the structure of 1, stigmasterol was taken as the starting material for the synthesis.

本论文以1为目标化合物，作为合成方法研究的对象。

After examination of their structures, stigmasterol was used as starting material for the synthesis.

通过审查它们的结构特征，我们选择较易得的豆甾醇作为合成起始原料。

In addilion, it was found that stigmasterol had strong cytotoxic action on 〓 and Hela cells.

此外，还首次发现豆甾醇体外对〓和Hela细胞有较强的细胞毒活性。

The solubility of different phytosterols in solvent is different,so stigmasterol－enhanced phytost e rol can be prepared.

各个甾醇在不同的溶剂中的溶解度有所差异，可以通过多级分步结晶的方法实现分离。

The hemisuccination process and reaction kinetics of stigmasterol with succinic anhydride using toluene as a solvent,pyridine as a catalyst were studied.

研究了甲苯为溶剂，吡啶为催化剂，豆甾醇与琥珀酸酐的酯化反应工艺和反应动力学。

Tofu does not contain cholesterol, the "three high" crowd and arteriosclerosis, coronary heart disease in patients with delicacies; tofu in a rich plant estrogen in the prevention and treatment of osteoporosis have a good effect; tofu in the steroid steroids, stigmasterol, is the active ingredient in inhibiting cancer.

豆腐不含胆固醇，是"三高"人群及动脉硬化、冠心病患者的佳肴；豆腐中丰富的植物雌激素，对防治骨质疏松症有良好的作用；豆腐中的甾固醇、豆甾醇，是抑制癌细胞的有效成分。

The hemisuccination process and kinetics ofβ-sitosterol and stigmasterol with succinic anhydride The reaction product ofβ-sitosterol and stigmasterol with succinic anhydride were characterized by elemental analysis,~1H NMR and ~(13)C NMR.

应用高效液相色谱对混合植物甾醇琥珀酸酯化产物中各组分的含量进行了分析测定。实验结果表明，各种植物甾醇琥珀酸单酯的分离效果较好，响应时间在10min左右，面积归一法能够快速准确地用于该过程的分析测试。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。