eprintid: 4717 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/47/17 datestamp: 2023-11-09 16:16:25 lastmod: 2023-11-09 16:16:25 status_changed: 2023-11-09 15:59:14 type: article metadata_visibility: show creators_name: Ali, H.E.A. creators_name: Shanab, S.M.M. creators_name: Abo-State, M.A.M. creators_name: Shalaby, E.A.A. creators_name: El Demerdash, U.M.N. creators_name: Abdullah, M.A. title: Evaluation of antioxidants, pigments and secondary metabolites contents in Spirulina platensis ispublished: pub keywords: Agents; Antioxidants; Biomolecules; Bleaching; Cleaning; Fatty acids; Free radicals; Linoleic acid; Pigments; Volatile fatty acids, Anti-oxidant activities; Phycobiliproteins; Radical scavenging; Secondary metabolites; Spirulina, Metabolites note: cited By 9; Conference of 3rd International Conference on Process Engineering and Advanced Materials, ICPEAM 2014 ; Conference Date: 3 June 2014 Through 5 June 2014; Conference Code:114811 abstract: Spirulina platenisis was screened for antioxidant activity, water soluble pigments (phycobiliproteins) and secondary metabolites. Successive extraction by hexane, chloroform, ethyl acetate, ethanol (70) and water was carried out. Ethyl acetate extract demostrated high antioxidant activity with both 2,2´-diphenyl-1-picrylhydrazyl (DPPH) scavenging (47±0.32) and β- Carotene-linoleic acid bleaching assays (93.64±0.25),while, it showed very low antioxidant activity with 2, 2´-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radical scavenging method. Relatively high phycobiliproteins (0.16±0.01 mg ml-1), total phenolic content (21.88±1.67 mg GAE g-1 dry wt.), total alkaloids (3.02±0.06) and total terpenoids (0.14±0.00) were determined. © 2014 Trans Tech Publications, Switzerland. date: 2014 publisher: Trans Tech Publications Ltd official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84914155122&doi=10.4028%2fwww.scientific.net%2fAMM.625.160&partnerID=40&md5=d258290423bed65338c2ea6c9bcec8c0 id_number: 10.4028/www.scientific.net/AMM.625.160 full_text_status: none publication: Applied Mechanics and Materials volume: 625 pagerange: 160-163 refereed: TRUE isbn: 9783038351818 issn: 16609336 citation: Ali, H.E.A. and Shanab, S.M.M. and Abo-State, M.A.M. and Shalaby, E.A.A. and El Demerdash, U.M.N. and Abdullah, M.A. (2014) Evaluation of antioxidants, pigments and secondary metabolites contents in Spirulina platensis. Applied Mechanics and Materials, 625. pp. 160-163. ISSN 16609336