柳州职业技术学院学报
柳州職業技術學院學報
류주직업기술학원학보
Journal of Liuzhou Vocational & Technical College
2015年
4期
64-67
,共4页
桑叶%总黄酮含量%超声提取%紫外-可见分光光度法
桑葉%總黃酮含量%超聲提取%紫外-可見分光光度法
상협%총황동함량%초성제취%자외-가견분광광도법
mulberry leaves%total flavonoids%ultrasonic extraction%ultraviolet-visible spectrophotometry
采用超声波法提取样品桑叶中的黄酮类化合物，利用紫外可见分光光度法测定其总黄酮的含量。比较野生桑叶与药用桑叶中总黄酮的含量。结果表明，黄酮含量在浓度20~70mg?mL-1范围内，线性关系良好，桑叶的平均加样回收率97.5%， RSD为1.81%，所测的野生桑叶比药店买回药用桑叶的黄酮含量高。
採用超聲波法提取樣品桑葉中的黃酮類化閤物，利用紫外可見分光光度法測定其總黃酮的含量。比較野生桑葉與藥用桑葉中總黃酮的含量。結果錶明，黃酮含量在濃度20~70mg?mL-1範圍內，線性關繫良好，桑葉的平均加樣迴收率97.5%， RSD為1.81%，所測的野生桑葉比藥店買迴藥用桑葉的黃酮含量高。
채용초성파법제취양품상협중적황동류화합물，이용자외가견분광광도법측정기총황동적함량。비교야생상협여약용상협중총황동적함량。결과표명，황동함량재농도20~70mg?mL-1범위내，선성관계량호，상협적평균가양회수솔97.5%， RSD위1.81%，소측적야생상협비약점매회약용상협적황동함량고。
Objective: to determine the content of total flavonoids from mulberry leaves and compared with wild medicinal in mulberry leaves. Methods: the extraction of Flavonoids from mulberry leaves by ultrasonic method in the sample, the content of total flavone was determined by UV spectrophotometry. Results: the content of flavonoids in the concentration of 20~70mg?mL-1 range, good linearity, mulberry leaves. The average recovery was 97.5%, RSD was 1.81%. Conclusion: the wild mulberry leaf flavonoid content of medicinal mulberry leaf bought more than pharmacies.
