Antioxidant Activity of Loquat (Eriobotrya japonica Lindl.) Fruit Peel and Pulp Extracts in Stabilization of Soybean Oil During Storage Conditions |
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| Authors: | Mojtaba Delfanian Reza Esmaeilzadeh Kenari Mohammad Ali Sahari |
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| Affiliation: | 1. Graduated from Faculty of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iranmakan.delfan@yahoo.com;3. Department of Food Science and Technology, Sari Agriculture and Natural Resources University, Sari, Mazandaran, Iran;4. Department of Food Science and Technology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran |
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| Abstract: | The antioxidation activities of Eriobotrya japonica (Lindl.) fruit peel and pulp extracts were determined using DPPH, β-carotene, and Rancimat methods. Results showed that ethanol-water extract of peel and ethanol extract of pulp had the highest antioxidant activity. Protective effects of extracts in stabilization of soybean oil were tested and compared to tert-butyl hydroquinone by measuring peroxide values, free fatty acids, thiobarbituric acid, oxidative stability, and conjugated dienes and trienes values during storage (65 days at 25°C). Results showed that the ethanol-water extract of peel at 400 ppm exhibited stronger antioxidant activity, but the highest effect was observed in tert-butyl hydroquinone. |
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| Keywords: | Antioxidant activity Eriobotrya japonica Oxidation stability Soybean oil |
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