人工陈化过程中烤烟烟丝理化性质的变化  

Changes in the Physical and Chemical Properties of Tobacco during the Artificial Aging Process

作　　者：陈斌[1] 徐玮杰 汤朝起[1] 丁冉 李强[2] 张鑫[1] 黄慧 杨凯[1] CHEN Bin;XU Weijie;TANG Zhaoqi;DING Ran;LI Qiang;ZHANG Xin;HUANG Hui;YANG Kai(Technical Center,Shanghai Tobacco Group Co.,Ltd.,Shanghai 201315,China;Store&Transport Co.of Shanghai Tobacco Group Co.,Ltd.,Shanghai 200439,China)

机构地区：[1]上海烟草集团有限责任公司技术中心,上海201315 [2]上海烟草集团有限责任公司上海烟草储运公司,上海200439

出　　处：《中国烟草科学》2025年第1期64-69,共6页Chinese Tobacco Science

基　　金：上海烟草集团有限责任公司科技项目(K2022-1-044P)。

摘　　要：通过考察烟丝陈化过程中各项理化指标的变化规律,为烟叶陈化程度量化评价方法的开发提供参考。以不同产地、不同部位的5种烟叶为试验对象,将其切成烟丝,在30℃、相对湿度60%的条件下陈化385 d并定期取样,测定烟丝颜色值(h、s、v、R、G、B、L、a、b)、常规化学成分(总糖、还原糖、总氮、烟碱、两糖比、氮碱比)、挥发酸、多酚、类胡萝卜素含量及吸光度值、pH,分析陈化过程中各指标变化规律。结果表明:(1)类胡萝卜素、挥发酸、吸光度、颜色值G和颜色值L在30℃、60%湿度的条件下陈化385 d(按积温计算,相当于自然陈化3~4年)分别变化了−54%、+43%、+28%、−29%和−25%,变化幅度相对较大;(2)各指标中,除颜色值a外,其余指标与陈化时间的线性回归方程均达到极显著水平(p<0.01),与陈化程度呈较好的线性关系。综上,类胡萝卜素、挥发酸、吸光度、颜色值G和颜色值L适合作为烟叶陈化程度量化评价指标。This study was conducted to investigate the changes in various physical and chemical indicators during the aging process of tobacco,and provide reference for the development of quantitative evaluation methods for the degree of tobacco aging.Five types of tobacco leaves from different production area and stalk position were used as experimental objects,which were cut into tobacco shreds and aged for 385 days at 30℃and 60%relative humidity with regular sampling.The color value(h,s,v,R,G,B,L,a,b),conventional chemical components(total sugar,reducing sugar,total nitrogen,nicotine,the ratio of reducing sugar to total sugar,the ratio of total nitrogen to nicotine),volatile acid,polyphenols,carotenoid content,absorbance values and pH of the tobacco leaves were measured,and the changes of each indicators during the aging process were analyzed.The results showed that as the follows.(1)Carotenoids,volatile acids,absorbance,color value G,and color value L changed by−54%,+43%,+28%,−29%,and−25%,respectively after aging for 385 days at 30℃ and 60% humidity(equivalent to 3-4 years of natural aging based on accumulated temperature),indicating a relatively large range of changes.(2)Among the indicators,except for the color indicator a,the linear regression equations of the remaining indicators with aging time reached a highly significant level(p<0.01),showing a good linear relationship with the tobacco aging degree.In conclusion,carotenoids,volatile acids,absorbance,color value G,and color value L are suitable as quantitative evaluation indicators for the aging degree of tobacco leaves.

关 键 词：烤烟 陈化 颜色值 化学成分 吸光度 pH 

分 类 号：TS441[农业科学—烟草工业]