Abstract
The response surface methodology (RSM) was used to optimize ultrasonic-assisted extraction of total flavonoids from Alliums cepa L. var. agrogatum Don (ACAD). The results indicated that the highest extraction yield of flavonoids by ultrasonic-assisted extraction could obtain to be 3.36% using ethanol concentration of 70% (v/v) as solvent and liquid to solid ratio of 17:1 (mL/g) for 48 min at the temperature of 60 °C. The total flavonoids were purified by AB-8 resin column and polyamide resin column successively. In addition, the maximum absorption wavelength of ACAD flavonoids was determined by UV spectrophotometry, followed by their structural identified and analysis for flavonoids by infrared spectroscopy, high performance liquid chromatography. It could be concluded that the flavonoids of ACAD contains quercetin.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
