title: An efficient microwave assisted extraction of phenolic compounds and antioxidant potential of Ginkgo biloba.
abstract: Flavonoid glycosides are a significant group of compounds found in Ginkgo biloba leaves, but the long extraction procedures in existing methods are a challenging problem. In this work, a microwave-assisted extraction (MAE) method has been developed for extracting bioactive compounds from G. biloba. Several variables were optimized, such as extracting solvent, microwave power, and extraction time that can potentially affect the extraction yield. The total phenolic content, antioxidant activity (using DPPH, ABTS and FRAP assays) and flavonoid glycosides of different extracts using RP-HPLC were assessed. The antioxidant capacity was found to be highest with MAE using 60% aq. ethanol as extracting solvent and microwave power of 120W for 20 min.
authors.affiliation: Natural Plant Products Division, Institute of Himalayan Bioresource Technology (Council of Scientific and Industrial Research), Palampur-176 061, Himachal Pradesh, India.
authors.forename: Pushpinder
authors.initials: P
authors.lastname: Kaur
authors.forename: Abha
authors.initials: A
authors.lastname: Chaudhary
authors.forename: Bikram
authors.initials: B
authors.lastname: Singh
authors.lastname: Gopichand
mesh_terms: D000975:Antioxidants / Q000737:chemistry*; D005591:Chemical Fractionation / Q000379:methods*; D005419:Flavonoids / Q000737:chemistry; D020441:Ginkgo biloba / Q000737:chemistry*; D008872:Microwaves; D010636:Phenols / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D005419:Flavonoids; D010636:Phenols