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http://dx.doi.org/10.11002/kjfp.2011.18.3.288

Quality Characteristics of Fresh-cut Lotus Roots According to the Temperature of the Wash Water  

Chang, Min-Sun (Department of Food & Nutrition, Duksung Women's University)
Kim, Ji-Gang (Vegetable Research Division, National Institute of Horticultural and Herbal Science, RDA)
Kim, Gun-Hee (Department of Food & Nutrition, Duksung Women's University)
Publication Information
Food Science and Preservation / v.18, no.3, 2011 , pp. 288-293 More about this Journal
Abstract
This study investigated the changes in the quality of fresh-cut lotus roots that were treated with hot water. Lotus roots were purchased from Daegu, Korea. They were washed, peeled, and cut into lcm-thick slices with a ceramic knife. The peeled and sliced lotus roots were dipped for 45 sec in water at 30, 55, and $80^{\circ}C$. After they were air-dried at room temperature, the slices were packed in polyethylene films and stored at $4^{\circ}C$ for 12 d. Then the changes in the weight loss, color, total viable cell, and sensory characteristics were measured. Generally, the weight loss of the lotus roots that were treated with hot water slightly increased. The application of the heat treatment delayed the browning of the lotus roots, especially the treatment with $55^{\circ}C$ hot water. The L and a values of the lotus roots that were treated with $80^{\circ}C$ hot water significantly increased during their storage, though. The heat treatment effectively inhibited the growth of microorganisms. The organoleptic quality of the lotus roots that were treated with $55^{\circ}C$ hot water was the best.
Keywords
lotus root; heat treatment; quality; fresh-cut;
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Times Cited By KSCI : 12  (Citation Analysis)
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