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EFFECT OF EXTRACTION SOLVENTS ON POLYPHENOLS AND ANTIOXIDANT ACTIVITY OF MEDICINAL HALOPHYTES

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dc.contributor.author QASIM, MUHAMMAD
dc.contributor.author AZIZ, IRFAN
dc.contributor.author RASHEED, MUNAWWER
dc.contributor.author GUL, BILQUEES
dc.contributor.author KHAN, M. AJMAL
dc.date.accessioned 2022-12-09T06:01:07Z
dc.date.available 2022-12-09T06:01:07Z
dc.date.issued 2016-04-27
dc.identifier.citation Qasim, M., Aziz, I., Rasheed, M., Gul, B., & Khan, M. A. (2016). Effect of extraction solvents on polyphenols and antioxidant activity of medicinal halophytes. Pak J Bot, 48(2), 621-627. en_US
dc.identifier.issn 2070-3368
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/14875
dc.description.abstract This study was conducted to determine the most effective solvent for extraction of polyphenols and antioxidant activity of medicinally important coastal halophytes (Thespesia populneoides, Salvadora persica, Ipomoea pes-caprae, Suaeda fruticosa and Pluchea lanceolata) known for high antioxidant potential. Five different solvents (water, 80% methanol, 80% ethanol, acetone and chloroform) were used to quantify polyphenols including total phenolic (TPC), total flavonoid (TFC) and proanthocyanidin contents (PC) and antioxidant capacity using DPPH radical scavenging and Ferric reducing antioxidant power (FRAP) activities. Among solvents of different polarities 80% methanol appeared most effective for polyphenol extraction. Thespesia populneoides had the highest polyphenols (TPC, TFC and PC) followed by Salvadora persica. Highest antioxidant activity was also found in T. populneoides and S. persica using the same solvent (80% methanol) which appeared better than synthetic antioxidants (BHA and BHT). The correlation analyses of each solvent showed strong to weak relationships among all studied parameters with maximum values (r and R2 ) in methanol followed by ethanol and water. Weaker correlation of acetone and chloroform indicates low capacity of these solvents both for polyphenol extraction and antioxidant activity. Our results reveal that aqueous methanol extracts of coastal halophytes had comparatively higher antioxidant activity than commercial antioxidants which indicate both their prospective efficacy and potential to replace synthetic derivatives from edible and medicinal products. en_US
dc.language.iso en en_US
dc.publisher Karachi: Pakistan Journal of Botany , Botanical garden , University of Karachi en_US
dc.subject Arabian Sea en_US
dc.subject Coastal plants en_US
dc.subject DPPH en_US
dc.subject Economic potential en_US
dc.subject FRAP en_US
dc.subject Saline habitats en_US
dc.subject Salt tolerant plants en_US
dc.subject Secondary metabolites en_US
dc.title EFFECT OF EXTRACTION SOLVENTS ON POLYPHENOLS AND ANTIOXIDANT ACTIVITY OF MEDICINAL HALOPHYTES en_US
dc.type Article en_US


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