摘要
为优化烟叶晾制光调控技术,采用紫外光、红外光、红光和白光4种光源,对上、中、下3个部位烟叶晾制过程的新鲜期、变黄期、变褐期及干筋期的颜色、多酚类物质、挥发性成分等关键指标进行对比分析,探究不同光源辐照对烟叶颜色及关键化学成分的影响。结果表明:经白光处理后,中部烟叶的颜色更鲜艳,而经红外光处理后,上部烟叶的颜色变暗;经红外光处理后,上部烟叶中的多酚类物质总量高于其他组;下部烟叶中检测到最多挥发性成分,且引起各个部位4个光源组挥发性成分产生差异的关键化学成分为烟碱和新植二烯;紫外光处理使烟叶中醛类物质含量上升,红外光处理使酯类物质含量上升,白光和红光处理使醇类物质含量上升,其中特征物质戊醛、苯甲酸乙酯和苯乙醇提升明显。因此,4种光源处理会对烟叶颜色和关键化学成分产生不同程度的影响,可为基于光技术调控烟叶品质提供参考。
To optimize the light-regulation technology for tobacco leaf curing,four types of light sources(ultraviolet,infrared,red,and white light)were used to comparatively analyze key indicators such as color,polyphenolic substances,and volatile components during the fresh,yellowing,browning,and dry-gluten stages of curing for tobacco leaves from the upper,middle,and lower positions.This study explored the effects of different light-source irradiation on the color and key chemical components of tobacco leaves.The results showed that after white light treatment,the color of middle-position tobacco leaves was brighter,while after infrared light treatment,the color of upper-position tobacco leaves became darker.The total content of polyphenolic substances in upper-position tobacco leaves after infrared light treatment was higher than the total content of polyphenolic substances in other groups.The lower-position tobacco leaves had the highest content of volatile components.The key substances causing differences in volatile components among the four light-source groups for each position were nicotine and neophytadiene.Ultraviolet light treatment increased the aldehydes content in tobacco leaves,infrared light treatment increased the esters content,and white light and red light treatments increased the alcohols content.Among them,the characteristic substances pentanal,ethyl benzoate,and phenethyl alcohol increased significantly.Therefore,the four types of light-source treatments have different degrees of influence on the color and key chemical components of tobacco leaves,providing a reference for regulating tobacco leaf quality based on light technology.
作者
王骏
蒋健
赵亮
徐建
胡安福
金一骁
丁宁
蔡铭
WANG Jun;JIANG Jian;ZHAO Liang;XU Jian;HU Anfu;JIN Yixiao;DING Ning;CAI Ming(China Tobacco Zhejiang Industrial Co.,Ltd.,Hangzhou 310000,China;College of Food Science and Engineering,Zhejiang University of Technology,Hangzhou 310000,China)
出处
《轻工学报》
北大核心
2025年第5期72-81,共10页
Journal of Light Industry
基金
浙江中烟工业有限责任公司科技项目(ZJZY2022B001)
浙江省“领雁”研发攻关计划项目(2023C04025)。
关键词
光源辐照
烟叶
颜色
晾制过程
多酚类物质
挥发性成分
light irradiation
tobacco leaves
color
curing process
polyphenol
volatile component
