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남궁배,정문철,김동만,문광덕,최종욱
간행물명
농산물저장유통학회지
권/호정보
2000년|7권 1호|pp.57-62 (6 pages)
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한국식품저장유통학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Ginseng was stored at a temperature lower than the freezing point after a treatment of freezing point depressing agents to extend its freshness. Respiration rate at freezing point of ginseng, -1.7${pm}$0.1$^{circ}C$, was inhibited 92% and 97% compared with those stored at 5$^{circ}C$or 20$^{circ}C$ , respectively. Sorbitol solution chosen as a freezing point depressing agent lowered the freezing point of ginseng to about -3.0$^{circ}C$. Ginsengs treated with the sorbitol solution and packaged with 0.06mm LDPE was stored at -2$^{circ}C$ , and the quality change was then compared with ginsengs stored at 0$^{circ}C$ and 5$^{circ}C$. Weight loss of ginsengs stored at -2$^{circ}C$ for 100days was 1.5%, which is about 2.6times less than those stored at 5$^{circ}C$. However, there were no significant difference between the ginsengs stored at -2$^{circ}C$ and at 0$^{circ}C$(1.9%). Spoilage rate of the ginsengs was 100% after 50 days of storage at 5$^{circ}C$ and 25% after 100days at 0$^{circ}C$respectively. but that of ginsengs stored at -2$^{circ}C$ was 13%, which was half than that of ginsengs stored at 0$^{circ}C$. Firmness and amount of monoscaccharides in ginsengs were decreased during storage at 5 or 0$^{circ}C$ but ginsengs stored at -2$^{circ}C$ showed better firmness and an increase in monosaccharides such as fructose and glucose. From above, when ginseng treated with freezing pont depressing agents were stored at -2$^{circ}C$, the shelf life was extended to 2 or 3 times longer than those that were stored at 5 or 0$^{circ}C$, respectively.