CAJ | 학술논문

槲皮素是灯盏花中的有效黄酮化合物之一，为此对灯盏花中槲皮素的提取方法进行改进．采用真空超声法提取，联用高效液相色谱进行测定，最优提取条件为，提取溶剂为40％的乙醇溶液，提取时间为15 min，固液比为1∶20．测定结果为，真空超声提取法的萃取量为0.0935 mg／g，优于常压超声提取法的萃取量0.0423 mg／g，改进后的真空超声提取法有利于溶质的溶出、避免了黄酮化合物的氧化．
곡피소시등잔화중적유효황동화합물지일，위차대등잔화중곡피소적제취방법진행개진．채용진공초성법제취，련용고효액상색보진행측정，최우제취조건위，제취용제위40％적을순용액，제취시간위15 min，고액비위1∶20．측정결과위，진공초성제취법적췌취량위0.0935 mg／g，우우상압초성제취법적췌취량0.0423 mg／g，개진후적진공초성제취법유리우용질적용출、피면료황동화합물적양화．
Quercetin is one of the effective flavonoids in Erigeron Breviscapus.The extraction method of quercetin in Erigeron Brevisca-pus was improved by using ultrasonic extraction under vacuum.Quercetion was determined by high performance liquid chromatography. The optimized conditions of extraction solvent,extraction time and solid-liquid ratio were 40%ethanol,15 min and 1∶20,respectively. The results show that the extraction amount was 0.093 5 mg/g for ultrasonic extraction under vacuum while 0.042 3 mg/g for conven-tional ultrasonic extraction,which showed the better extraction efficiency.The improved method was benefit to the dissolution of solutes and avoided oxidation of flavone compounds.