| 垂盆草总黄酮的酶法提取及其抑菌活性 |
| 投稿时间：2009-06-29 修订日期：2009-09-11 点此下载全文 |
| 引用本文：公衍玲,黄山,于慧荣.垂盆草总黄酮的酶法提取及其抑菌活性[J].药学实践杂志,2010,28(2):114~115,153 |
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| 中文摘要:目的:研究垂盆草总黄酮的酶法提取工艺及其抑菌作用。方法:用酶解和煎煮相结合的方法,以总黄酮得率为指标,通过正交实验优选出最佳提取工艺,用平板打孔法考察垂盆草总黄酮的抑菌作用。结果:垂盆草总黄酮的最佳酶解工艺条件是酶解温度50℃,酶解pH 6.0,酶用量0.6%,酶解时间1.5 h,其中酶解温度是显著影响因素。总黄酮得率可达3.471%。垂盆草总黄酮提取液对大肠杆菌、金黄色葡萄球菌、枯草杆菌和产气杆菌都有不同程度的抑菌作用,对四联球菌作用不明显。结论:该实验得到的垂盆草总黄酮的提取工艺合理可行,提取率高,提取得到的总黄酮具有一定的抑菌作用。 |
| 中文关键词:垂盆草 总黄酮 酶法提取 抑菌作用 |
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| Enzymatic extraction and antibacterial activity of total flavonoids from Sedum sarmentosum |
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| Abstract:Objective To investigate the technology of total flavonoids in Sedum sarmentosum extracted by enzymatic method and its antibacterial activity.Methods Total flavonoids in Sedum sarmentosum was extracted by the method that enzymatic hydrolysis combined with water decocting.The extraction technology was optimized by orthogonal design with the content of total flavonoids yield.The antibacterial activity of total flavonoids was determined by stiletto method.The Results reveled that the optimum technology was to be hydrolyzed for 1.5 h by 0.6% enzyme at 50 ℃ in pH 6.0.The significant factor was the temperature of enzymatic hydrolysis.The yield of total flavonoids was 3.471%.Total flavonoids of Sedum sarmentosum was bacteriostasis on E.coli,Staphylococcus aureus,Bacillus subtilis and Bacillus gasoformans.The bacteriostasis on Bacillus aerogenes was not obvious.The extraction technology obtained in this experiment are reasonable and feasible with high extraction rate,and the total flavonoids has some antibacterial activity. |
| keywords:Sedum sarmentosum total flavonoids enzymatic extraction antibacterial activity |
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