Ultrasonic-microwave-assisted extraction of total flavonoids from Seed oil residue of Passiflora edulis Sims
Journal Title: 广东农业科学 - Year 2018, Vol 45, Issue 4
Abstract
"The seed oil residue of Passiflora edulis Sims was used as the study object,and the flavonoids in the seed oil residue were extracted by ultrasonic-microwave-assisted methodology. First single-factor experiments were taken,such as ethanol concentration,solid-to-solvent ratio,ultrasonic power,ultrasonic time,microwave power and microwave time. The results showed that ultrasonic power and microwave time had a significant effect on the extraction rate of flavonoids;ultrasonic time,ethanol concentration,solid-to-solvent ratio and microwave power had a more significant effect on the extraction yield of flavonoids. Response surface methodology( RSM) was applied to optimize the extraction result and a maximum extraction yield of total flavonoids was achieved. The optimal extraction conditions were 73.78% of ethanol concentration,1∶56.02(g/mL) of ratio between solid and liquid,300 W of ultrasonic power,50 min of ultrasonic time,160 W of microwave power,90 s of microwave time,by which the yield of flavonoids reached 117.53 mg/g. The extraction yield of flavonoids by ultrasonic-microwave-assisted methodology is 14.81% higher than that of ethanol extraction."
Authors and Affiliations
Yan LI, Wei HUANG
Production scale,specialization and contract matching of litchi and longan farmers
"The developing trend of farmers is from self-sufficiency to multiple occupations,then to specialization and production and operation scale. With the increase of trade scale and frequency through factor market and produ...
Effects of two substrates on leaf nutrients and chlorophyll fluorescence characteristics of indoor vertical greening plants
Vertical greening not only improves the vegetation coverage rate and urban green volume, enriches the urban landscape level, but also enhances the building ecological environment. Leaf nutrient content, specific leaf wei...
The lethal effects of temperature treatment, carbon dioxide(CO2) enriched atmosphere and ethyl formate fumigation against Araecerus fasciculatus (De Geer)
This study examined the lethal effects of temperature treatment, carbon dioxide (CO2) enriched atmosphere and ethyl formate fumigation against larvae, pupa and adults of Araecerus fasciculatus (De Geer)under different tr...
Study on resistance of banana fusarium wilt detected by using crude toxin in vitro culture
In the process of banana tissue culture, the crude toxin of Fusarium oxysporum f. sp. cubense was added to the tissue culture medium to determine the sensitivity of different varieties of banana towards the crude toxin,...
Forecast of cold chain logistics demand for agricultural products in Beijing based on neural network
"In order to forecast the demand of agricultural products cold chain logistics caused by the consumption,this paper constructs an impact index system from six aspects of agricultural products supply,social economy,col...