Antibacterial and antioxidant potential of the phenolic extract and its fractions isolated from Allium ascalonicum (onion) peel.
Nat Prod Res
; 36(12): 3163-3167, 2022 Jun.
Article
em En
| MEDLINE
| ID: mdl-34304656
ABSTRACT
Aqueous methanolic (2080) crude extract of the outer peel of Allium ascalonicum (onions) was fractionated into anthocyanin (II), acidic (i.e., phenolic acids, Ia), neutral A (i.e., flavanols, Ib) and neutral B (i.e., flavonols, Ic) phenols using C-18 and hydrophilic-lipophilic balanced (HLB) Co-polymer cartridges. The fractions were analysed for total phenolic, total flavonoids, antibacterial activity, antioxidant potential and lipoxygenase (LOX) inhibition. The recovery of total phenols and bio functional activity in all fractions were found to be more in HLB. All fractions showed antimicrobial activity against tested strains with phenolic acids (Ia) being most active and flavanol (Ib) least active, while the highest free radical scavenging, reducing power and LOX inhibition was exhibited by flavonol (Ic) and least by flavanols (Ib). HPLC analysis revealed the presence of vanillic acid and quercetin in non-anthocyanin I and cyanidin in anthocyanin II.
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Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Extratos Vegetais
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Cebolinha Branca
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Antibacterianos
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Antioxidantes
Idioma:
En
Revista:
Nat Prod Res
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Paquistão