Antiurolithiatic activity of aqueous extract of bark of moringa oleifera (lam.) in rats

In the present study, aqueous extract of bark of Moringa oleifera administered orally, was eva- luated for its antiurolithiatic potential in albino rats of Wistar strains. The stones were produced in this study by zinc disc foreign body insertion in the bladder supplemented with 1% ethylene glycol in drinking water. The reduction in weight of the stones was used as criteria for assessing the preventive or curative antiurolithiatic effect of the bark of this plant. Two doses of extract for prophylactic and curative groups were used. In both groups the oral administration of the extract of bark of Moringa oleifera has resulted in significant reduction in the weight of bladder stones compared to the control group.

辣木树皮对Cr(Ⅵ)吸附性能的研究

采用废弃的辣木树皮,经加工处理后用于吸附去除水溶液中的Cr(Ⅵ),研究考察了辣木皮粉的用量、吸附时间、pH值、吸附温度、Cr(Ⅵ)溶液初始浓度等因素对吸附效果的影响。结果表明,吸附量随着pH值的增大而减小,随着吸附时间的延长、吸附温度的提高而增大;辣木皮粉用量增加,吸附去除率提高;Cr(Ⅵ)溶液初始浓度增大,单位吸附量增加,吸附去除率下降。适宜的吸附条件为:辣木皮粉用量4.0 g/L,溶液初始浓度为20 mg/L,pH值1,温度30℃,吸附时间4 h,Cr(Ⅵ)吸附去除率可达97.3%。研究表明,辣木皮粉对水中Cr(Ⅵ)有良好的吸附效果。

辣木扦插繁殖技术

辣木营养丰富,市场潜力大,种植面积在不断扩大。研究辣木扦插繁殖技术能大幅度提高辣木的育苗效率。通过田间观测,主要研究辣木扦插环境、抑芽剂控梢促根效果及辣木扦插生根特点等。结果表明,辣木在扦插过程中受白蚁的危害较大,需通过隔离的方式才能有效控制;辣木的成枝力很强,插穗插后约一周就能抽芽长梢,涂抹200倍的抑芽剂能明显抑制枝梢的生长,促进辣木插穗生根;通过观察发现,辣木的扦插生根为皮部生根类型。