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논문 기본 정보

자료유형
학술저널
저자정보
손상목 (단국대학교 농과대학 식물자원학부) 윤덕훈 (단국대학교 농과대학 식물자원학부)
저널정보
한국유기농업학회 한국유기농업학회지 한국유기농업학회지 제5권 제1호
발행연도
1996.1
수록면
101 - 110 (10page)

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Inorder to minimize the daily intake amount of nitrate by chinese cabbage, the favorate vegetable for Korean, the influences of storage conditions at different temperature and light or dark treatments after post-harvest and effects of cooking temperature and infrared rays on changes of nitrate contents in edible parts of chinese cabbage were determined. The nitrate contents on midrib and leaf blade in chinese cabbage during post-harvest were decreased steeply in 2 days and decreased slowly again in 5 days. The temperature treatment to decrease the nitrate contents in midrib and leaf blade of chinese cabbage were effective as the following of $25^{\circ}C$> $15^{\circ}C$ > $-4^{\circ}C$ > $-10^{\circ}C$. The nitrate contents of midrib and leaf blade were decreased in the timecourse of post-harvest. It is more effective to store in $4^{\circ}C$ than in $15^{\circ}C$, and is more effective in transparent vinyl package than in black vinyl package, but the treatment of light is more effective than the treatment of temperature. The nitrate contents of midrib decreased rapidly by 17.9% in the treatment of 5 days at$ 15^{\circ}C$. By treatment of $80^{\circ}C$, $90^{\circ}C$, $100^{\circ}C$ water, the nitrate contents of midrib were increased slightly, but decreased in leaf blade. It reached 68.5%, 50.6%, 45.9% in the leaf blade respectively by treatment of 80%, 90%, 100% water at 1 min. By infrared rays treatment, the nitrate contents of midrib did not change in 3 min but increased rapidly after 6 min, and in the leaf blade it increased continually after 1 min.

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