Abidin, M.H.Z. and Abdullah, N. and Abidin, N.Z. (2016) Protective effect of antioxidant extracts from Grey oyster mushroom, pleurotus pulmonarius (Agaricomycetes), against human low-density lipoprotein oxidation and aortic endothelial cell damage. International Journal of Medicinal Mushrooms, 18 (2). pp. 109-121. ISSN 1521-9437,
Full text not available from this repository.Abstract
This study evaluated the in vitro antioxidant capacities of extracts from Pleurotus pulmonarius via Folin-Ciocalteu, 1,1-diphenyl-2-picrylhydrazyl free radical scavenging, metal chelating, cupric ion reducing antioxidant capacity, and lipid peroxidation inhibition assays. Extract compositions were determined by phenol–sulfuric acid; Coomassie Plus (Bradford) protein; Spectroquant zinc, copper, and manganese test assays; and liquid chromatography– tandem mass spectrometry (LC/MS/MS) and gas chromatography–mass spectrometry (GC/MS). Methanol-dichloromethane extract, water fraction, hot water, aqueous extract and hexane fraction exhibited the most potent extracts in the antioxidant activities. LC/MS/MS and GC/MS showed that the extracts contained ergothioneine, ergosterol, flavonoid, and phenolic compounds. The selected potent extracts were evaluated for their inhibitory effect against oxidation of human low-density lipoproteins and protective effects against hydrogen peroxide–induced cytotoxic injury in human aortic endothelial cells. The crude aqueous extract was deemed most potent for the prevention of human low-density lipoprotein oxidation and endothelial membrane damage. Ergothioneine might be the compound responsible for the activities, as supported by previous reports. Thus, P. pulmonarius may be a valuable antioxidant ingredient in functional foods or nutraceuticals.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Medicinal mushrooms; Oxidative stress; Antioxidant; Functional food; LDL oxidation; Human aortic endothelial membrane damage |
| Subjects: | Q Science > QH Natural history > QH301 Biology |
| Divisions: | Faculty of Science > Institute of Biological Sciences |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 13 Oct 2017 03:14 |
| Last Modified: | 13 Oct 2017 03:14 |
| URI: | http://eprints.um.edu.my/id/eprint/18010 |
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