CAJ | 학술논문

为加强苦菜和蒲公英的进一步开发利用，研究了乙醇浓度、料液比和提取时间对苦菜和蒲公英总黄酮得率以及不同浓度提取物对苦菜和蒲公英抗氧化活性的影响。结果表明：苦菜和蒲公英总黄酮提取的最优化条件为提取液乙醇的浓度为60％，料液比为1∶30，超声提取时间为0．5 h ，总黄酮得率分别为6．44％和17．56％。苦菜和蒲公英提取物对DPPH自由基清除率随样品提取物浓度的增大而升高，在浓度为9．6 mg·mL-1时，苦菜和蒲公英提取物的DPPH自由基清除率都达到最大，分别为76．47％和80．39％。
위가강고채화포공영적진일보개발이용，연구료을순농도、료액비화제취시간대고채화포공영총황동득솔이급불동농도제취물대고채화포공영항양화활성적영향。결과표명：고채화포공영총황동제취적최우화조건위제취액을순적농도위60％，료액비위1∶30，초성제취시간위0．5 h ，총황동득솔분별위6．44％화17．56％。고채화포공영제취물대DPPH자유기청제솔수양품제취물농도적증대이승고，재농도위9．6 mg·mL-1시，고채화포공영제취물적DPPH자유기청제솔도체도최대，분별위76．47％화80．39％。
For the development and utilization of dandelion and sowthistle ,The effect of ethanol concentration , solid-liquid ratio and extraction time on total flavones and extraction concentration and antioxidation activity of sowthistle and dandelion were studied .The results showed that the optimum extraction conditions of total flavonoids of sowthistle and dandelion were 6 .44% and 17 .56% at 60% ethanol solution ,1∶30 solid-liquid ratio and 0 .5 h for extraction .With the increasing of extraction concentration ,the DPPH free radical scavenging activity of sowthistle and dandelion were increasing ,when extraction concentration was 9 .6 mg·mL-1 ,the DPPH free radical scavenging activity were 76 .47% and 80 .39% respectively .