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Peroxyl Radical Trapping Antioxidant Activity of Essential Oils and Their Phenolic Components. | LitMetric

AI Article Synopsis

Article Abstract

Essential oils (EOs) are gaining importance as sustainable food antioxidants, but kinetic data on peroxyl radical trapping are missing. Thirteen EOs from 11 botanical species were studied in the inhibited autoxidation of cumene by oxygen-uptake kinetics. EOs of , , , , , , and , containing 23-86% phenolic components by gas chromatography/mass spectrometry (GC-MS) analysis, afforded inhibition rate constants in the order of 10 M s at 30 °C similar to reference butylhydroxytoluene (2,6-di--butyl-4-methylphenol) (BHT). They matched or outperformed BHT in the protection of olive oil. The EOs and with <1% phenols and those of and with no phenolics had no chain-breaking activity. Key components carvacrol, thymol, eugenol, dihydroeugenol, umbelliferone, conyferyl alcohol, -cresol, -cresol, -cresol, 4-allylphenol, 2,3-xylenol, 2,4-xylenol, and phenol had in the range of 10-10 M s and, along with EOs containing them, could potentially replace BHT in the protection of food products.

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http://dx.doi.org/10.1021/acs.jafc.4c04580DOI Listing

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