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Article Publish Status: FREE
Abstract Title:

Phenolic Composition and Antimicrobial Activity of Different Emirati Date (L.) Pits: A Comparative Study.

Abstract Source:

Plants (Basel). 2019 11 12 ;8(11). Epub 2019 Nov 12. PMID: 31726677

Abstract Author(s):

M Iftikhar Hussain, Mohammad H Semreen, Abdallah Shanableh, Muhammad Nasir Khan Khattak, Ismail Saadoun, Islam M Ahmady, Muath Mousa, Nora Darwish, Wameed Radeef, Sameh S M Soliman

Article Affiliation:

M Iftikhar Hussain

Abstract:

The biochemical composition, secondary metabolites (phenolic compounds, flavonoids) and antimicrobial potential of different varieties of Emirati date (L.) pits were investigated. Total phenolic acids (TPC) and total flavonoid contents (TFC) of the different date pits were measured using a Folin-Ciocalteau reagent. Different organic solvents [(-hexane; HO: EtOH (1:1); ethyl acetate; acetone: Water (1:1); and methanol: Chloroform (1:1)] were compared to evaluate the phytotoxicity of Ajwa, Fard, Khalas, Khodari, Abu Maan, Lulu, and Mabroom date pits. The antimicrobial activity of the date pit extracts were evaluated by means of agar-well diffusion assay on(ATCC 29123),(ATCC 25922) and(ATCC 66027). Minimum inhibitory concentrations (MICs) were measured following clinical laboratory standardization institute (CLSI) protocol. The biochemical analyses of date pits indicate that TPC were ranged from 7.80 mg of equivalent gallic acid/100 g dry weight in Ajwa to 4.65 mg in Mabroom. The TFC were ranged between 1.6-4.54 mg of equivalent catechin/100 g dry weight. Ajwa pit extract showed good quality traits (higher protein, lower ash content, and intermediate dietary fiber). The results indicate that the ethyl acetate extract of Khalas and Khodari inhibitedwith an inhibition zone diameter of 20 mm and MIC of 10 mg/mL. Abu Mann pit extract inhibited theand also decreased the population of. The diameter of inhibition zone was 15, 16, and 18 mm after treatment with Ajwa extracts, while the MICs were 7.5 and 5 mg/mL. The MeOH: CFM extract of Abu Mann and Ajwa was more potent againstbacteria than any other extract. This work demonstrates that the Emirati date pits extract has antimicrobial (antibacterial, antifungal) potential and can be used as phytotoxic natural compounds.

Study Type : In Vitro Study

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