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Evaluation of Antioxidant Activity of fresh Lemon (Citrus lemon L.) peel in Marrakech, Kenitra cities of Morocco and Taiz of Yemen

Khaled Abdu, Rahma Erahioui, Amina Moutawalli, Ahmed Zahidi, Khadija Khedid, Said Ibn Ahmed

Abstract


The principal objective of this study was to appraise the variation of antioxidant activity, total phenols, and total flavonoids of fresh lemon peel from regions located Marrakech and Kenitra in Morocco and a region Taiz in Yemen. The test of polyphenol was performed from extracts that were measured using the Folin-Ciocalteu technique. Also, an analysis of Flavonoid was performed of was measured by using the aluminum chloride. The Free radical scavenging activity of lemon extracts was measured by 2,2′-Diphenyl-1-picrylhydrazyl hydrate (DPPH).

The DPPH radical scavenging activity of ethanolic extract of fresh lemon peel found to be highest at 200μl concentration, which was 77. 15 %; 67. 88 %; 37.74%. Through it, 50% inhibition (IC50) was obtained to be 92. 04; 153. 55 and 215.407 μg/ml in Marrakech, Kenitra, and Taiz, respectively. As well, the values radical scavenging activity of methanolic extract of the same concentration, which are 82, 77 %, 53, 33 %, and 47,5%. Through it, 50% inhibition (IC50) was obtained to be 145. 6; 179. 17 and 274.899 μg/ml in Marrakech, Kenitra, and Taiz, respectively. But regarding the values radical scavenging activity of essential oil of the same concentration, which is 63.77 %, 42.19 %, and 80.25%. Through it, 50% inhibition (IC50) was obtained to be 155.54; 271.158 and 101.31 μg/ml in Marrakech, Kenitra, and Taiz, respectively. According to the results obtained in our study, the antioxidant activity increases with increased polyphenols and IC50 deficiency in Marrakech, Kenitra, and Taiz.


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DOI: http://dx.doi.org/10.13171/mjc10602006261379ka

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