KMID : 0665220110240030406
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Korean Journal of Food and Nutrition 2011 Volume.24 No. 3 p.406 ~ p.413
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Effects of Antioxidative Activities and Antibrowning of Extracts from Onion, Apple and Mandarin Orange Peel as Natural Antibrowning Agents
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Chang Min-Sun
An Se-Jin Chung Moon-Cheol Kim Dong-Man Kim Gun-Hee
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Abstract
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This study was carried out to investigate antioxidative properties of various extracts and antibrowning effects of extracts in apple slices were investigated by ¥ÄE value and PPO relative activity. Apples were cut into 1.5 §¯ thickness and they were dipped in 1% extract solutions(OW: water extracts of onion, OE: 80% EtOH extracts of onion, AW: water extracts of apple, AE: 80% EtOH extracts of apple, MW: water extracts of mandarin orange peel, ME: 80% EtOH extracts of mandarin orange peel) for 1 min. OW showed higher than the other treatments for total phenolic contents(94.35 §·/g), PPO inhibition(74.00%). And the highest DPPH free radical scavenging activity(40.27%) measured in ME. ¥ÄE value of apple slices dipped in MW was 2.37 whereas ¥ÄE value of apple slices dipped in AW was 12.12. These results suggest that onion and mandarin orange peel extracts should be a potential source for controlling browning during storage of apple slices.
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KEYWORD
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onion, apple, mandarin orange peel, antioxidative, antibrowning
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