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저장조건과 수분함량에 따른 버어리종 잎담배 수분활성도 및 이화학적 특성 변화
장수원,차광호,양진철,이철환,신승구,조천준,Jang, Soo-Won,Cha, Kwang-Ho,Yang, Jin-Chul,Lee, Chul-Hwan,Shin, Seung-Ku,Jo, Chun-Joon 한국연초학회 2007 한국연초학회지 Vol.29 No.2
The study was carried out to investigate water activity, physicochemical properties and color degree of burley tobacco stored in shelf with different moisture content for 56 days. The study was consist of two experimental designs, that is, moisture content in burley tobacco was kept to 13 to 15 %, 17 to 19 %, and 21 to 23 % under ambient temperature of $20^{\circ}C$ with relative humidity of 24 %, and another group of in burley tobacco was only kept in ambient temperature of $3^{\circ}C$ with relative humidity of 50 % for 56 days with same water content of former treatment. Normal leaves were kept for 56 days under 21 to 23% of moisture content with increased water activity and TSNA(tobacco-specific nitrosamine content. It was considered that favorable leaves conditions are due to favorable microbial growth resulting in increased TSNA content. The total nitrogen content has not changed in two experimental groups for 56 days, otherwise the nitrate form nitrogen and total alkaloid contents were only increased by 21 to 23 % of water content. Degree of pH change was slightly decreased in both storage and water treatment. It was more decreased in 21 to 23% of moisture content than that of other moisture content. In stored leaf tobacco, higher moisture content caused lower brightness, yellow degree, and carbonization quotient.
버어리종 잎담배 건조 환경 개선을 위한 건조실 개발 (I. 건조기간중의 미기상 변화)
차광호,장수원,양진철,오경환,신승구,조천준,Cha, Kwang-Ho,Jang, Soo-Won,Yang, Jin-Chul,Oh, Kyoung-Hwan,Shin, Seung-Ku,Jo, Chun-Joon 한국연초학회 2007 한국연초학회지 Vol.29 No.2
This study was carried out to investigate the changes of curing condition on microclimate of temperature, relative humidity during curing process of burley tobacco leaves. The developed facility, ridge opening type was designed to open the central top roof. The air-cured variety, (N. tabacum cv KB111) was normally grown at the Eumseong tobacco experimental station in 2007. Mean daily temperature of $3^{\circ}C$ in ridge opening type curing facility was lower than that of conventional, whereas mean daily relative humidity of 12.6 % RH was lower in conventional curing facility for the entire stage of curing. The frequency distribution of optimal air temperature at daytime was higher 37.5 % in ridge opening type curing facility than that of conventional, while that of optimal relative humidity was lower 8.2 %. In the ridge opening type curing facility, the excessive drying leaves were low, however the price per kilogram was high. These results suggest that the new developed curing facility may be applied to improved microclimate inside the curing facility for curing burley.