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Effect of Microbe Control and Water Temperature on Early Growth and Yield of Soybean Sprouts  

배경근 (㈜풀무원기술연구소)
남승우 (㈜풀무원기술연구소)
김경남 (㈜풀무원기술연구소)
황영현 (경북대학교 농업생명과학대학식물생명과학부)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.47, no.6, 2002 , pp. 453-458 More about this Journal
Abstract
High temperature sterilization method (30min. at $40^{\circ}C$longrightarrow30 min. at $70^{\circ}C$longrightarrow30 min. cooling at $20^{\circ}C$) was evaluated better than that of chloride, ion water, $O_3$ water, and salt water for the controling of micro-organisms at the early stage of sprout culture. Due to the improved germination rate and effective control of micro-organisms at early stage, the method resulted in much lower in the number of micro-organisms, higher in sprout yield, and 2 days longer in quality keeping at market than sprouts prepared by conventional method. There are two methods related with water temperature; constant temperature method (18.5$\pm$ $0.5^{\circ}C$) which keeps the same water temperature during the culture and 3-stage temperature method which changes the water temperature depending on the days after culture. Three-stage temperature method set the temperature at 21$\pm$ $1^{\circ}C$) in the second and third days after the initial acceleration of germination (about 4 hours), at 18.5$\pm$0.5$^{\circ}C$ in the fourth and fifth days, and at 17.0$\pm$ $0.5^{\circ}C$) in the sixth and seventh days. Three-stage temperature method could enhance the resistance power to diseases at the early growth stage, control the growth to standard goods (8-9cm in length and 2.15-2.30mm in width), and keep good body color at the middle or final stage. This method also increased the sprout yield by 6% compared with the conventional method, constant temperature method.
Keywords
soybean; sprout; microbe control; water temperature; blanching;
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