摘要
With the leaves,bark and roots of Liriodendron chinense Sarg.× L.tulipifera L.as experiment materials,the ultrasonic-assisted extraction conditions of total flavonoids were optimized by response surface Box-Behnken test design.Ultrasonic time and liquid-to-solid ratio had significant effects on the extraction amount of flavonoids from the leaves of L.chinense Sarg.× L.tulipifera L.;ultrasonic temperature and liquid-to-solid ratio had an interaction on the extraction amount of flavonoids;and the optimum ultrasonic time,temperature and liquid-to-solid ratio for the extraction of flavonoids from leaves of L.chinense Sarg.× L.tulipifera L.were 19.82 min,28.60 ℃ and 9.48 ml/g,respectively.Ultrasonic time,temperature and liquid-to-solid ratio had significant effects on the extraction amount of flavonoids from L.chinense Sarg.× L.tulipifera L.;there was a significant interaction between any two of the factors,which had a significant effect on the extraction of flavonoids;and the optimum extraction parameters for flavonoids in the bark were the ultrasonic time of 33.66 min,the ultrasonic temperature at 32.85 ℃ and the liquid-to-solid ratio of 11.39 ml/g.Ultrasonic time and liquid-to-solid ratio had significant effects on the extraction of flavonoids from roots;there was a significant interaction between ultrasonic time and liquid-to-solid ratio and between ultrasonic temperature and liquid-to-solid ratio;and the optimum extraction parameters for flavonoids from the roots of L.chinense Sarg.× L.tulipifera L.were the ultrasonic time of 32.38 min,the ultrasonic temperature at 25.0 ℃ and the liquid-to-solid ratio of 8.00 ml/g.The results of the three models were stable.The models are feasible and have good application value.
With the leaves, bark and roots of Liriodendron chinense Sarg.×L. tulipifera L. as experiment materials, the ultrasonic-assisted extraction conditions of total flavonoids were optimized by response surface Box-Behnken test design. Ultrasonic time and liquid-to-solid ratio had significant effects on the extraction amount of flavonoids from the leaves of L. chinense Sarg.×L. tulipifera L.; ultrasonic temperature and liquid-to-solid ratio had an interaction on the extraction amount of flavonoids; and the optimum ultrasonic time, temperature and liquid-to-solid ratio for the extraction of flavonoids from leaves of L. chinense Sarg.×L. tulipifera L. were 19.82 min, 28.60 ℃ and 9.48 ml/g, respectively. Ultrasonic time, temperature and liquid-to-solid ratio had significant effects on the extraction amount of flavonoids from L. chinense Sarg.×L. tulipifera L.; there was a significant interaction between any two of the factors, which had a significant effect on the extraction of flavonoids; and the optimum extraction parameters for flavonoids in the bark were the ultrasonic time of 33.66 min, the ultrasonic temperature at 32.85 ℃ and the liquid-to-solid ratio of 11.39 ml/g. Ultrasonic time and liquid-to-solid ratio had significant effects on the extraction of flavonoids from roots; there was a significant interaction between ultrasonic time and liquid-to-solid ratio and between ultrasonic temperature and liquid-to-solid ratio; and the optimum extraction parameters for flavonoids from the roots of L. chinense Sarg.×L. tulipifera L. were the ultrasonic time of 32.38 min, the ultrasonic temperature at 25.0 ℃ and the liquid-to-solid ratio of 8.00 ml/g. The results of the three models were stable. The models are feasible and have good application value.
基金
Supported by the Policy Guidance Plan of Jiangsu Province(Production and Research Cooperation)(BY2016061-27)
College Students’Practice Innovation Training Program of Jiangsu Province(201811049045X)
