摘要
以B2F等级烤烟为研究材料,通过相关性分析和OPLS回归分析等方法,对选自西南烟区的凉山、红河、曲靖和普洱共44份烤烟样本的外观质量与化学成分之间的关系进行了研究。结果表明:烤烟外观质量特征主要表现为颜色橘黄、烟叶成熟、色度强、油分有、结构尚疏松、身份稍薄,各指标的变异程度较小、一致性强;烤烟化学成分中,咖啡酸、莨菪亭、槲皮素和乳酸等指标的变异程度较大;烤烟外观质量与化学成分存在一定的相关关系,其中还原糖、总酚、绿原酸和类胡萝卜素与颜色指标呈极显著正相关关系,还原糖、绿原酸、芸香叶苷和总酚与成熟度指标呈极显著正相关关系,钾含量与叶片结构指标呈极显著正相关关系,淀粉含量与色度指标呈极显著负相关关系;通过OPLS模型回归得到的拟合方程表明,烤烟两糖比、类胡萝卜素、还原糖、绿原酸、苹果酸和总氮对外观质量有较大的正向影响,柠檬酸对外观质量具有负向作用。综上所述,通过提升烤烟的类胡萝卜素、还原糖、绿原酸、苹果酸、总氮含量以及两糖比有利于烟叶外观质量的提升。
B2F grade flue-cured tobacco was used as the research material,and the relationship between appearance quality and chemical composition of 44 flue-cured tobacco samples from Liangshan,Honghe,Qujing and Pu’er in southwest tobacco area was studied by correlation analysis and OPLS regression analysis.The results showed that appearance quality characteristics of flue-cured tobacco were mainly characterized by orange color,mature tobacco leaves,strong chroma,good oil content,loose structure,slightly thin identity,small variation degree of each index and strong consistency of each index.Among the chemical components of flue-cured tobacco,caffeic acid,scopolamine,quercetin and lactic acid showed great variation.There is a certain correlation between the appearance quality of flue-cured tobacco and chemical components,and the total phenols,chlorogenic acid and carotenoid has a very significant positive correlation with the color score.The reducing sugar content has a very significant positive correlation with maturity.Potassium content has a very significant positive correlation with leaf structure score.Starch content has a very significant negative correlation with chroma.The fitting equations obtained by OPLS regression showed that the ratio of two sugars,carotenoids,reducing sugars,chlorogenic acid,malic acid and total nitrogen had a greater positive effect on the appearance quality,while citric acid had a negative effect on the appearance quality.Improving the content of carotenoids,reducing sugar,chlorogenic acid,malic acid,total nitrogen and the ratio of two sugars is beneficial to the improvement of appearance quality.
作者
袁文彬
陈桢禄
严锦申
杨天旭
王文辉
谢丹凤
周伟
石文才
王维
YUAN Wen-bin;CHEN Zhen-lu;YAN Jin-shen;YANG Tian-xu;WANG Wen-hui;XIE Dan-feng;ZHOU Wei;SHI Wen-cai;WANG Wei(China Tobacco Guangdong Industrial Co.,Ltd.,Guangzhou 510610,China;Guangdong Tobacco Monopoly Bureau(Company),Guangzhou 510610,China;South China Agricultural University,Guangzhou 510642,China;Liangshan Tobacco Company of Sichuan Province,Xichang 615000,China)
出处
《江西农业学报》
CAS
2023年第1期28-35,共8页
Acta Agriculturae Jiangxi
基金
广东中烟工业有限责任公司科技计划项目(2021440000300035、2020440000340035)。
关键词
烤烟
清甜香型
化学成分
外观质量
OLPS回归
Flue-cured tobacco
Fresh-sweetness flavor type
Chemical composition
Appearance quality
OLPS regression