CAJ | 학술논문

采用半叶法对烟叶进行杀青干燥和冷冻干燥，分析2种干燥方式对烟叶形态和化学成分组成的影响。结果表明：（1）冷冻干燥后的烟叶呈鲜绿色，杀青干燥后的烟叶呈黄褐色，冷冻干燥后的烟叶体积（同样重量）是杀青法干燥后的烟叶的3.25倍；（2）杀青干燥的过程中，由于外界温度较高及烟叶内水分的耗散，造成烟叶中多酚和类胡萝卜素的降解转化，检测出美拉德反应产物9种和类胡萝卜素降解产物8种，同时损失了9种低分子香气物质，如：3-甲基丁醇、2-戊烯醇和3-戊烯醛等，总体造成干物质含量降低（与冷冻法相差4.37百分点）。冷冻干燥方式保持了烤烟烟叶的固有色泽、结构和内含物，是一种适合于化学成分准确检测的样品干燥方式。
채용반협법대연협진행살청간조화냉동간조，분석2충간조방식대연협형태화화학성분조성적영향。결과표명：（1）냉동간조후적연협정선록색，살청간조후적연협정황갈색，냉동간조후적연협체적（동양중량）시살청법간조후적연협적3.25배；（2）살청간조적과정중，유우외계온도교고급연협내수분적모산，조성연협중다분화류호라복소적강해전화，검측출미랍덕반응산물9충화류호라복소강해산물8충，동시손실료9충저분자향기물질，여：3-갑기정순、2-무희순화3-무희철등，총체조성간물질함량강저（여냉동법상차4.37백분점）。냉동간조방식보지료고연연협적고유색택、결구화내함물，시일충괄합우화학성분준학검측적양품간조방식。
Effects of drying methods on tobacco leaf morphology and chemical composition were investigated by half leaf method. Results showed that leaves obtained by freeze-drying were green, while that by de-enzyme torrefaction were yellow brown. Bulk size of the former is 3.25 times larger than that of the latter with the same weight. Polyphenols and carotenoids were degraded because of external high temperature stress and body water dissipation in the process of de-enzyme torrefaction. Nine Maillard reaction products and 8 carotenoid degradation products were detected, while 9 small molecular aromatic components disappeared, such as 3-methyl-butanol, 2-pentyl alcohol, 3-pentenal. Overall, dry matter loss during de-enzyme torrefaction processes showed 4.37% difference with that treated by freeze-drying. It was concluded that freeze-drying was a better sample drying method which could keep fresh leaf's color and structure.