为探究不同成熟度鲜烟叶素质指标对烤后烟叶品质的影响,以‘渝金香1号’为试验材料,对植株中部尚熟、适熟和过熟烟叶的色素含量、组织结构、生化成分等鲜烟素质指标进行测定,并通过偏最小二乘法—判别分析(partial least squares discri...为探究不同成熟度鲜烟叶素质指标对烤后烟叶品质的影响,以‘渝金香1号’为试验材料,对植株中部尚熟、适熟和过熟烟叶的色素含量、组织结构、生化成分等鲜烟素质指标进行测定,并通过偏最小二乘法—判别分析(partial least squares discriminant analysis,PLS-DA)研究鲜烟素质指标对烤后烟叶品质影响的贡献度。结果表明,不同成熟度鲜烟叶的色素含量、组织结构及生化成分含量等存在显著差异。鲜烟素质指标对烤后烟叶品质影响显著,其中,上表皮和下表皮厚度、栅栏组织厚度、组织比及类叶比对烤后烟叶品质影响较大。下表皮厚度、组织比与烤后烟叶外观质量和感官质量呈负相关;上表皮厚度、栅栏组织厚度与烤后烟叶外观质量和感官质量呈正相关;类叶比与外观质量呈正相关,与感官质量呈负相关。综上所述,不同成熟度鲜烟叶素质指标与烤后烟叶品质之间关系密切,为烟叶成熟度判断标准的选择和烤后烟叶品质的提升提供了理论依据。展开更多
[Objective]The aim was to explore effects of curing technique parameters on chemical components and aromatic material accumulation to formulate a suitable curing technique and for and to achieve tobacco scalding, dryi...[Objective]The aim was to explore effects of curing technique parameters on chemical components and aromatic material accumulation to formulate a suitable curing technique and for and to achieve tobacco scalding, drying and giving aromat- ic flavor. [Method] With tobacco variety KRK 26 as test materials, the test involved parameters of three curing-techniques in down, middle and upper parts of flue-cured tobaccos in an oven to measure chemical components and aromatic substances in tobaccos. [Result] The effects of curing techniques on total sugar and reducing sug- ar differed upon temperature and humidity. The contents of chemical components, such as total alkaloid, total N and the ratio of sugar/ alkali by moderate temperature and high humidity technique were of significant differences with those by moderate temperature and moderate humidity technique and with low temperature and low hu- midity technique; the chemical components by moderate temperature and moderate humidity were of insignificant differences with the treatment by low temperature and low humidity technique. Total amount of aroma components by different curing tech- niques from high to low was the treatment by low temperature and low humidity technique （461.72 μg/g）, the treatment by moderate temperature and moderate hu- midity technique （450.06μg/g） and the treatment by moderate temperature and high humidity technique （385.12μg/g）, suggesting the content of aromatic substances is high at low temperature and low humidity. [Conclusion] Moderate temperature and high humidity curing technique has significant effects on total alkaloid, total N and the ratio of sugar/ alkali of tobaccos and different curing techniques also affect the total amount of aromatic substances of flue-cured tobaccos.展开更多
文摘为探究不同成熟度鲜烟叶素质指标对烤后烟叶品质的影响,以‘渝金香1号’为试验材料,对植株中部尚熟、适熟和过熟烟叶的色素含量、组织结构、生化成分等鲜烟素质指标进行测定,并通过偏最小二乘法—判别分析(partial least squares discriminant analysis,PLS-DA)研究鲜烟素质指标对烤后烟叶品质影响的贡献度。结果表明,不同成熟度鲜烟叶的色素含量、组织结构及生化成分含量等存在显著差异。鲜烟素质指标对烤后烟叶品质影响显著,其中,上表皮和下表皮厚度、栅栏组织厚度、组织比及类叶比对烤后烟叶品质影响较大。下表皮厚度、组织比与烤后烟叶外观质量和感官质量呈负相关;上表皮厚度、栅栏组织厚度与烤后烟叶外观质量和感官质量呈正相关;类叶比与外观质量呈正相关,与感官质量呈负相关。综上所述,不同成熟度鲜烟叶素质指标与烤后烟叶品质之间关系密切,为烟叶成熟度判断标准的选择和烤后烟叶品质的提升提供了理论依据。
基金Supported by China National Tobacco Corporation General Project(〔2012〕122)Chongqing Branch Company S&T Project of China National Tobacco Corporation(NY20110601070010)~~
文摘[Objective]The aim was to explore effects of curing technique parameters on chemical components and aromatic material accumulation to formulate a suitable curing technique and for and to achieve tobacco scalding, drying and giving aromat- ic flavor. [Method] With tobacco variety KRK 26 as test materials, the test involved parameters of three curing-techniques in down, middle and upper parts of flue-cured tobaccos in an oven to measure chemical components and aromatic substances in tobaccos. [Result] The effects of curing techniques on total sugar and reducing sug- ar differed upon temperature and humidity. The contents of chemical components, such as total alkaloid, total N and the ratio of sugar/ alkali by moderate temperature and high humidity technique were of significant differences with those by moderate temperature and moderate humidity technique and with low temperature and low hu- midity technique; the chemical components by moderate temperature and moderate humidity were of insignificant differences with the treatment by low temperature and low humidity technique. Total amount of aroma components by different curing tech- niques from high to low was the treatment by low temperature and low humidity technique （461.72 μg/g）, the treatment by moderate temperature and moderate hu- midity technique （450.06μg/g） and the treatment by moderate temperature and high humidity technique （385.12μg/g）, suggesting the content of aromatic substances is high at low temperature and low humidity. [Conclusion] Moderate temperature and high humidity curing technique has significant effects on total alkaloid, total N and the ratio of sugar/ alkali of tobaccos and different curing techniques also affect the total amount of aromatic substances of flue-cured tobaccos.
