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Extraction of Eugenol in Clove Extract and Evaluation of its Antioxidant Activity

Journal: International Journal of Environment, Agriculture and Biotechnology (Vol.9, No. 2)

Publication Date:

Authors : ;

Page : 262-267

Keywords : Antioxidant; β-carotene–linoleic acid; DPPH; eugenol; phenolic content.;

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Abstract

Higher total phenolic content was observed in steam-distilled clove extract compared to its oleoresin. Ensuring antioxidant activity of steam distilled and clove oleoresin using β-carotene–linoleic acid model system was found to be 85.51±0.19% and 77.88±0.15%, respectively, at a level of 200 ppm. The radical-scavenging activity of steam-distilled extract and oleoresin of clove were 88.93±0.23% and 80.84±0.36%, respectively, at the same level of 200ppm by using the DPPH method. Eugenol content in the steam-distilled extract of clove (0.518±0.005mg/ml) was significantly higher than that of clove oleoresin (0.433±0.007mg/ml). Recovery of eugenol content affected by the period of refluxing and clove extract refluxed for 4 hr found to be highest recovery in the steam distilled clove extract (0.763±0.007) than its clove oleoresin (0.635±0.020) with 13.904 min retention time using RP-HPLC. The steam-distilled clove extract was found to have the highest antioxidant activity than its oleoresin counterparts.

Last modified: 2024-06-01 13:51:57