我国八大香型生态区域烤烟游离氨基酸含量与烟叶品质的关系分析  

Analysis on the Relationship between Contents of Free Amino Acids and the Quality of Flue-Cured Tobacco in Eight Flavor Ecological Regions of China

作　　者：贾国涛 王晓瑜[2] 孙溢明 聂聪[2] 何静宇 冯颖杰 马胜涛 崔廷 程东旭 姚倩 李悦 张子颖 王宝林 刘惠民[2] Jia Guotao;Wang Xiaoyu;Sun Yiming;Nie Cong;He Jingyu;Feng Yingjie;Ma Shengtao;Cui Ting;Cheng Dongxu;Yao Qian;Li Yue;Zhang Ziying;Wang Baolin;Liu Huimin(China Tobacco Henan Industry Co.,Ltd.,Zhengzhou 450000,Henan,China;Zhengzhou Tobacco Research of CNTC,Zhengzhou 450001,Henan,China)

机构地区：[1]河南中烟工业有限责任公司,河南郑州450000 [2]中国烟草总公司郑州烟草研究院,河南郑州450001

出　　处：《作物杂志》2023年第3期195-199,共5页Crops

基　　金：国家烟草专卖局科技重点研发项目“烤烟烟叶风格与质量的化学表征组学研究”(110202002003)和河南中烟工业有限责任公司项目“中国(河南)浓香烟叶关键成分及代谢组学解析”(2019410001340052)。

摘　　要：为分析不同生态区域烤烟游离氨基酸的含量差异性及其相关性,以及与化学品质指标的内在关系,以8个不同香型风格烤烟生态区249份烟叶样品为研究对象进行研究。结果表明,全国烤烟游离氨基酸总量整体表现为上部叶>中部叶>下部叶,脯氨酸(Pro)含量最高,其次为Asn,Met含量最低。其中,烤烟游离氨基酸Asn、Glu、Gln、Gly、Ala、Lys、His和Trp含量表现为上部叶>下部叶>中部叶。烤烟游离氨基酸主要以正相关为主。基于热图分析结果,不同生态区域烤烟游离氨基酸总量整体表现为Ⅳ>Ⅶ>Ⅰ>Ⅱ>Ⅲ>Ⅷ>Ⅴ>Ⅵ。全国优质烟叶生产区Ⅰ、Ⅱ和Ⅲ的Ser含量高,游离氨基酸总量处于中等水平。不同生态区域总糖、还原糖、钾含量和糖碱比与大部分游离氨基酸存在负相关关系。In order to analyze the content difference and correlation of free amino acids in flue-cured tobacco in different ecological regions,as well as the relationship with chemical quality indicators,249 tobacco leaf samples from eight different flavor style flue-cured tobacco ecological regions were taken as the research objects.The results showed the total amount of free amino acids in flue-cured tobacco was upper leaves>middle leaves>lower leaves,with the highest content of Pro,followed by Asn,and the content of Met was the lowest.The contents of Asn,Glu,Gln,Gly,Ala,Lys,His and Trp in flue-cured tobacco were upper leaves>lower leaves>middle leaves.The free amino acids in flue-cured tobacco were mainly positively correlated.Based on the heat map analysis,the total amount of free amino acids in flue-cured tobacco in different ecological regions was IV>VII>I>II>III>VIII>V>VI.The Ser contents in the national high-quality tobacco production areas I,II and III were high,and the total amount of amino acids were at a medium level.The total sugar,reducing sugar,potassium and sugar base ratio in different ecological regions were negatively correlated with most free amino acids.

关 键 词：烤烟 游离氨基酸 生态区域 品质 相关性 

分 类 号：TS411[农业科学—烟草工业]