PHYTOCHEMICAL SCREENING AND ANTIOXIDANT ACTIVITY OF ONION(Allium cepa L.) EXTRACTS

Autor:	Abdelaleim Ismail ElSayed, Mohamed A. El-Saied, S. S. El-Saadany, H. T. Hefnawy
Rok vydání:	2021
Předmět:	chemistry.chemical_classification Antioxidant ABTS biology Traditional medicine DPPH medicine.medical_treatment Flavonoid Ethyl acetate food and beverages biology.organism_classification chemistry.chemical_compound chemistry Phytochemical Polyphenol medicine Allium
Zdroj:	Zagazig Journal of Agricultural Research. 48:489-498
ISSN:	1110-0338
DOI:	10.21608/zjar.2021.175288
Popis:	Phytochemical screening and antioxidant activities in different solvent extracts of onion was carried out. The extracts were subjected to various chemical Test for phytochemical constituents.Total phenolic contents were evaluated using FolinCiocalteu method and their antioxidant activity was assayed through «in vitro» radical scavenging activity usingDPPH· assay, FRAP and ABTS. The phytochemical screening of this study indicated the presence of steroids, flavonoids, alkaloids, saponnins, and catechic tannins. The average total polyphenol content of hydroethanolic extracts was significantly (P
Databáze:	OpenAIRE
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