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KMID : 1007520200290091165
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Food Science and Biotechnology
2020 Volume.29 No. 9 p.1165 ~ p.1179
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Roles and action mechanisms of herbs added to the emulsion on its lipid oxidation
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Choe Eun-Ok
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Abstract
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Quality of food emulsions is mainly determined by their physicochemical stability such as lipid oxidation, and herbs as antioxidative food materials are added to improve their quality and shelf-life. Despite the extensive researches, the chemistry and implications of herb addition in the lipid oxidation of emulsions are still confusing. This review intended to provide the information on the roles and action mechanisms of herbs in the lipid oxidation of food emulsions, with focuses on polyphenols. Polyphenols act as antioxidants mainly via reactive oxygen species scavenging and metal chelating; however, their oxidation products and reducing capacity to more reactive metal ions increase the lipid oxidation. Factors such as structure, concentration, and distribution determine their anti- or prooxidant role. Interactions, synergism and antagonism, among polyphenol compounds and the effects of tocopherols derived from oil on the antioxidant activity of herbs were also described with the involving action mechanisms.
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KEYWORD
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Herb, Polyphenol, Lipid oxidation of emulsion, Interaction, Tocopherol
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