alkaloids

Theobromine, like caffeine, and also like the asthma drug theophylline, belong to the chemical group known as xanthine alkaloids.

可可碱与咖啡因、茶碱（哮喘药）一样，属于黄嘌呤生物碱家族。

The water solvable parts of the total alkaloids of S. alopecuroides inhibited caterpillars " feeding significantly. "

苦豆草总生物碱的水溶部分对松毛虫有显著的抑食作用。

Conclusion The content of total alkaloids in herba leonuri was all high, but seeding time in spring was more suitable.

结论不同播种期种植的益母草总生物碱含量均较高，但春播更为适宜。

Ultrafiltration followed by discontinuous diafiltration was carried out to examine the result of purification of alkaloids.

研究了超滤和水连续稀释过滤对生物碱的纯化结果。

After seeding, the total alkaloids of E. sinica, ephedrine and pseudoephedrine content in aerial part increased fast.

一年生草麻黄地上部总生物碱、麻黄碱、伪麻黄碱含量自播种后增长一直较快。

Study on the Microwave-Assisted Extraction of the Total Steroidal Alkaloids from Solanum nigrum L.

微波辅助提取龙葵中总生物碱的研究。

UV was used to determine the process parameters by compared with synephrine, and the content of total alkaloids from eluent as criteria.

以辛弗林为对照品，用UV测定洗脱液中总生物碱的含量作为考察指标，确定最佳工艺参数。

In literature, the two alkaloids had antibacterial activity and the total alkaloids from Macleaya microcarpa had acaricidal activity.

文献报道，这两种生物碱具有抑菌活性，同时小果博落回总生物碱具有杀螨作用。

Results: The main ingredients with reproductive toxicity are alkaloids, glycosides, toxoprotein, animal toxins, phenols, heavy metals etc.

结果：具有生殖毒性中药的毒性成分主要为生物碱、苷类、毒蛋白、动物毒素、酚类和重金属等。

Conclusion: The total alkaloids in rhynchophylla have the effects of protecting vascular endothelium and inhibiting cell aging.

结论：钩藤总生物碱具有保护血管内皮、抑制细胞衰老的作用。

Nitrogen application combined with phosphorus application significant influence alkaloids concentration and Total alkaloids yield.

氮磷对苦参总碱含量和单株苦参总碱产量互作效应显著。

This method is practical and simple without using complex equipment and it could be used for determination of total alkaloids in Fri. . .

本法不需要复杂仪器，可作为平贝母中总生物碱含量测定的实用技术。

Most of alkaloids have significantly physiological activity, which are the effective ingredients in many medicinal plants.

大多数生物碱具有显著的生理活性。是许多药用植物的有效成分。

Vinblastine is one of the alkaloids from catharanthus roseus.

长春碱是长春花中所含生物碱的一种。

Objective To obtain effective materials from the total alkaloids of Fuzi Lizhong sustained-release tablets.

目的分析附子理中缓释片中总生物碱的药效物质。

Meanwhile, these alkaloids also could effectively reduce the eclamptic ratio of the mice and significantly prolong the convulsion latency.

杜仲雄花水溶性生物碱还能有效降低尼可刹米所致的小鼠惊厥率，延长惊厥潜伏期。

RESULTS In the thin-layer chromatogram of Rhizoma Arundo donax L. , the spots of the main alkaloids were round, clear, and well separated.

结果芦竹根药材薄层色谱图中，各主要生物碱类成分斑点圆整、清晰、分离度好。

The applications of cinchona alkaloids and parts of their derivatives in asymmetric synthesis were reviewed with 34 references.

综述了近年来金鸡纳碱及其部分衍生物在不对称合成中的应用。

cigarettes . determination of alkaloids retention by the filters . spectrometric method.

卷烟。滤嘴总植物碱截留量的测定。光度法。

All of the above results demonstrated that the mulberry polysaccharide, flavonoids and alkaloids could prevent and treat diabetes.

结论：桑叶多糖、黄酮、生物碱对糖尿病有一定的预防及治疗作用。