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International Journal of Dairy Science

Year: 2009 | Volume: 4 | Issue: 2 | Page No.: 67-73
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Authors

Hanaa F.M. Ali

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Research Article

Assessment of Freeze-Dried Hydrodistilled Extracts from Clove; Caraway and Coriander Herbs as Natural Preservatives for Butter Oil

Hanaa F.M. Ali
Antioxidant activities of Freeze-Dried Hydrodistilled (FDH) extract of three herbs; clove, (Syzygium aromaticum L.); caraway (Carum carvil L.) and coriander (Coriandum satvium L.) was evaluated in vitro by iron reduction; iron chelation and inhibition of lipid peroxidation methods. Also, total phenols content and the extraction yield was determined. Furthermore, simple model of butter oil was designed for evaluate the produced extracts as natural preservatives. Acid value, peroxide value and thiobarbituric acid (TBA) test were determined for oxidation system of butter oil. Antioxidant activity of clove FDH extract was significantly higher than caraway and coriander extracts when evaluated in iron reduction; iron chelation and inhibition of lipid peroxidation methods. Based on acid value, peroxide value and thiobarbaturic acid test, different FDH extracts exhibited antioxidant effect specially at rate of 400 ppm from individual extracts with order of clove>coriander >caraway. Also, different correlation relationships were recorded in present study.
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