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毛竹叶提取物不同流份抑菌活性评价 被引量:2
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作者 黄亚利 操海群 《安徽农学通报》 2008年第14期108-109,共2页
该文阐述了毛竹叶提取物不同流分的抑菌生物活性测定方法,以苹果炭疽番茄枯萎为供试植物病原菌,毛竹粗提物通过AB-8大孔树脂分离得到6个流份,评价毛竹粗提物不同流分的抑菌活性。结果表明,毛竹叶片粗提物对工种供试菌具有不同程度的抑... 该文阐述了毛竹叶提取物不同流分的抑菌生物活性测定方法,以苹果炭疽番茄枯萎为供试植物病原菌,毛竹粗提物通过AB-8大孔树脂分离得到6个流份,评价毛竹粗提物不同流分的抑菌活性。结果表明,毛竹叶片粗提物对工种供试菌具有不同程度的抑制作用,并以丙酮的提取物的抑制率最强,而从24h~48h菌丝抑制率呈明显减小趋势。 展开更多
关键词 大孔树脂 毛竹提取物 抑菌活性 测定
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毛竹提取物对吡虫啉的增效作用及田间药效评价
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作者 马海华 马健 《基层农技推广》 2015年第10期37-40,共4页
文章通过室内毒力测定和田间药效试验相结合,针对毛竹提取物对吡虫啉的增效作用进行了研究,并评价出毛竹提取物与吡虫啉复配水乳剂对蚜虫的田间药效。结果表明:当毛竹提取物石油醚组分与吡虫啉质量比为100∶1、50∶1、25∶1、12∶1、9∶... 文章通过室内毒力测定和田间药效试验相结合,针对毛竹提取物对吡虫啉的增效作用进行了研究,并评价出毛竹提取物与吡虫啉复配水乳剂对蚜虫的田间药效。结果表明:当毛竹提取物石油醚组分与吡虫啉质量比为100∶1、50∶1、25∶1、12∶1、9∶1时,共毒系数分别为101.59、156.20、119.78、126.78、149.17;其中质量比为50∶1和9∶1时,表现出明显的增效作用。田间试验结果指出:11.1%毛竹提取物·吡虫啉水乳剂对蚜虫表现出良好的防治效果,在750m L/hm2的剂量下复配水乳剂的防治效果为96.6%,高于0.5%藜芦碱水乳剂75m L/hm2的防治效果(87.8%),比10%吡虫啉水乳剂450m L/hm2防效略低(98.5%),但吡虫啉的用量减少了81.7%。毛竹提取物对吡虫啉有明显的增效作用,在适量配比下对蚜虫有很好防治效果,同时大大降低化学农药使用量,对提高农产品质量和农田生态环境具有较好的保护效果。 展开更多
关键词 毛竹提取物 复配试剂 萝卜蚜 田间试验 防治效果
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Antihyperuricemic Effect of Ethanol Extract of Snake Fruit (Salacca edulis Reinw.) var. Bongkok on Wistar Male Rat
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作者 Leni Herliani Afrianti Priyatno Elin Yulinah Sukandar +1 位作者 Slamet Ibrahim I Ketut Adnyana 《Journal of Food Science and Engineering》 2012年第5期271-276,共6页
The aim of the study was to investigate antihyperuricemic effect of snake fruit (Salacca edulis Reinw.) var. Bongkok Wistar male rates. Antihyperuricemic investigation on Wistar male rats showed that administration ... The aim of the study was to investigate antihyperuricemic effect of snake fruit (Salacca edulis Reinw.) var. Bongkok Wistar male rates. Antihyperuricemic investigation on Wistar male rats showed that administration of ethanol extract at doses of 200 mg/kg bw decreased serum uric acid level significantly compared to control group at hour 6 and 7 (P 〈 0.05) after inducing with potassium oxonate intraperitoneally simultaneously with uric acid orally. Whereas, administration of ethanol extract at doses of 100 mg/kg bw did not decrease serum uric acid level significantly different compared to control group at hour 6 and 7 (P 〈 0.05). Determination of uric acid level in urine, administration of ethanol extract at a dose of 200 mg/kg bw, or probenecid as a standard drug, at a dose of 45 mg/kg bw increased excretion of urine uric acid level significantly different compared to control group in day of 7 (P 〈 0.05) after inducing with potassium oxonate intraperitoneally simultaneously with uric acid orally. However, increase of uric acid excretion by ethanol extract was lower compared to that of probenecid at a dose of 45 mg/kg bw. Mechanism of action of the ethanol extract as an antihyperuricemia has been proposed by inhibition of xanthine oxidase and finally decreased the synthesis of uric acid and increased the excretion of urine uric acid level. 展开更多
关键词 Snake fruit var. Bongkok ethanol extract antihyperuricemic PROBENECID Wistar male rat.
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