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http://dx.doi.org/10.9799/ksfan.2013.26.4.731

Application of Hot Air for Shelf-Life Extension of Peach(Prunus persica L. Batsch)  

Lee, Kyung-Haeng (Dept. of Food and Nutrition, Korea National University of Transportation)
Park, Jae-Hee (Dept. of Food and Nutrition, Korea National University of Transportation)
Lee, Yu-Jin (Dept. of Food and Nutrition, Korea National University of Transportation)
Ban, Ki-Eun (Dept. of Food and Nutrition, Korea National University of Transportation)
Jang, Hyun-Jung (Dept. of Food and Nutrition, Korea National University of Transportation)
Choi, Ji-Hye (Dept. of Food and Nutrition, Korea National University of Transportation)
Publication Information
The Korean Journal of Food And Nutrition / v.26, no.4, 2013 , pp. 731-736 More about this Journal
Abstract
To improve their shelf-life, domestic peaches were treated with hot air($46^{\circ}C$) for 0~9 hour, and the spoilage rate, changes of physico-chemical and sensory properties were investigated. The control showed spoilage at day 4, and then 50% of control showed spoilage on day 6. However, 12.5% of samples treated with hot air($46^{\circ}C$) for 6 hr showed spoilage on day 4. After 6 days, the spoilage rates of peaches treated with hot air treated for 3~9 hr were 16.7, 25.0, and 25.0%, respectively. Weight change of control was higher than that of hot air-treated samples for 6 days storage. There were no differences in pH of samples among the treatments, but pH increased with storage time. Hardness of hot air-treated samples was higher than that of control in the initial stage of storage. And then hardness of control sample was decreased faster than that of the hot air-treated samples for 6 days of storage. No significant changes in lightness and redness of the samples were observed after hot air treatment. Changes in yellowness of control occurred faster than that of hot air-treated samples during storage. The sensory parameters including taste, flavor, color, texture and overall acceptance at initial period were not different among treatments. The scores for taste, flavor, texture and overall acceptance of control decreased faster than those of hot airtreated samples during storage.
Keywords
peach; hot air; spoilage rate; physico-chemical property;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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