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Making Techniques of Hight Quality Powder in Sweetpotato  

Lee, Joon-Seol (Mokpo Experiment Station, National institute of Crop Science, RDA)
Ahn, Young-Sup (National institute of Crop Science, RDA)
Kim, Hag-Sin (Mokpo Experiment Station, National institute of Crop Science, RDA)
Chung, Mi-Nam (Rural Development Administration)
Jeong, Byeong-Choon (Mokpo Experiment Station, National institute of Crop Science, RDA)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.51, no.spc1, 2006 , pp. 198-203 More about this Journal
Abstract
This study was conducted to select the temperature for hot air drying method, cutting method, and solution that inhibits enzymatic browning in making high quality powder from sweetpotato roots. It was observed that $70^{\circ}C$ was the best temperature for air drying method wherein the dry matter rating, dry matter time, flour yield and chemical component were considered. The proper cutting thickness should be 2.0 mm considering the vitamin C content and sensory evaluation of sweetpotato flour. Also, 1% vitamin C solution inhibited enzymatic browning of sweetpotato.
Keywords
sweet potato; powder; drying; cutting; browning;
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