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- Amon-g of them, YNN-1 and YNN-3 were obtained from the petroleum ether extract. 其中化合物HX-3、LFM-7由石油醚部分获得；
- Objective To study the chemical constituents of the petroleum ether extract fraction from Caragana microphylla Lam. 目的对小叶锦鸡儿石油醚提取物进行化学成分研究。
- Study on Chemical Constituents of Petroleum Ether Extract Fraction from Caragana microphylla Lam. 关键词：小叶锦鸡儿；石油醚；黄葵内酯；二十四烷酸；
- The content of petroleum ether extract in the CB-1 Cutter of 2 curing technique,3 maturities and 2 sampling ways were determined. 测定了2种烘烤工艺、3个成熟度和2种取样方式的CB-1品种中部叶烤后石油醚提取物的含量。
- Results n-Butanol extract and water extract significantly enhanced and petroleum ether extract from Bletilla colloid prominently reduced platelet maximum aggregation induced by ADP,while acetic ether extract had no effect. 结果白及正丁醇提取部位和水溶性部位可显著升高腺苷二磷酸(ADP)诱导的血小板最大聚集率,而乙酸乙酯提取部位可显著抑制ADP诱导的血小板聚集,石油醚提取部位对ADP诱导的血小板聚集无显著影响。 各提取部位对血小板数无显著影响。
- Petroleum ether extract,ether acetate extract,methanol extract,alkaloids and non-alkaloids of Cynanchum komarovii were tested for insecticidal ,fungicidal and herbicidal activities. 测定了牛心朴子石油醚提取物、乙酸乙酯提取物、甲醇提取物、生物碱、非生物碱5部分杀虫、抑菌、除草活性。
- Methods:The effective petroleum ether extract and ethyl acetate extract parts preliminary were selected in vitro,then anticancer experiments in vivo were done by S180-mice and H22-mice models. 方法:体外初步筛选出的青天葵石油醚和乙酸乙酯活性部位,利用S180和H22小鼠模型进行了体内抗肿瘤试验。
- ConclusionIt is the first time that the petroleum ether extract and ethyl acetate extract of Nervilia foadii(Hance) Schltr. are proved to be the effective anticancer fractions in vitro. 结论首次确定了青天葵的石油醚和醋酸乙酯部分是体外抗肿瘤作用的有效部位。
- Results Different extracts from Undaria pinnatifida showed antioxidativeactivities, and petroleum ether extract showed the highest free radical scavenging efficiency. 结果不同溶剂提取物均有不同程度的抗氧化活性,石油醚提取物清除自由基的效率比较高。
- This paper studied on oat oil from deshelled oat seeds by petroleum ether extraction. 本课题以脱壳燕麦为原料,经石油醚提取得到燕麦油。
- Objective:To study the effects of Calotes versicolor petroleum ether extracts(CVPE)on serum testosterone,NO and accessory sex organs of castrated mice. 目的:研究马鬃蛇石油醚提取物(CVPE)对去势大鼠血清睾酮、一氧化氮(NO)及附性器官的影响。
- Methods The petroleum ether extract fraction of Caragana microphylla Lam.was extracted by solvent extraction and isolated by the gel column chromatography. 方法用溶剂法提取,硅胶柱层析法分离得到化合物,通过理化鉴别和光谱法分析化学结构。
- To obtain chemical constituents from the fruit of Catalpa ovata G.Don,the methods of water extraction,ethanol extraction and petroleum ether extraction were used. 采用水提取法、醇提取法和石油醚提取法对梓树果实的化学成分进行了比较全面的定性实验。
- Among the solvents, the insecticidal effects of alcohol extracts are the best, and then followed by aether extracts and petroleum ether extracts in order. 就6种溶剂比较而言，用乙醇提取叶、枝和树皮的毒杀效果最好，其次是乙醚，石油醚提取物的效果最差。
- MethodsThe petroleum ether extract fraction of Caragana microphylla Lam.was extracted by solvent extraction and isolated by the gel column chromatography. 方法用溶剂法提取，硅胶柱层析法分离得到化合物，通过理化鉴别和光谱法分析化学结构。
- MethodsTo obtain chemical constituents from Musa basioo, in this paper the methods of water extraction, ethanol extraction and petroleum ether extraction were used. 方法采用水提取法、醇提取法和石油醚提取法对芭蕉根的化学成分进行定性实验。
- Petroleum ether extract of Herba Leonuri 益母草石油醚提取物
- Objective: To study the amelioration mechanism of Calotes versicolor petroleum ether extracts(CVPEE) on hypothalamus inhibition sexual function induced by morphine in immature male rats. 目的:研究马鬃蛇石油醚提取物(CVPEE)对下丘脑抑制的幼年雄性大鼠性功能的改善作用机制。
- ResultsThe contents of six samples in fatty oil and petroleum ether extracts had no difference,but they had significant difference in water extracts,ethanol extracts,aesculetin and esculin. 结果各地千金子样品脂肪油组分、醚溶性成分差别不大,水溶性成分、醇溶性成分、秦皮乙素和七叶树苷差异较大。
- To obtain chemical constituents from the flowers of Cancrinia discoidea(Idb.)Pok,in this paper the methods of water extraction,ethanol extraction and petroleum ether extraction were used. 采用水提取法、醇提取法和石油醚提取法对小甘菊花的化学成分进行了比较全面的定性实验。
