宜宾烟区植烟土壤理化性状对烤烟美拉德反应产物的影响

Effects of Physical and Chemical Properties of Tobacco-Growing Soil in Yibin Tobacco-Growing Area on Maillard Reaction Products of Flue-Cured Tobacco

为探讨土壤理化性状与烤烟美拉德反应产物的关系,为增加烤烟中性香味物质成分,为改善烟叶品质、提高烟叶香气质、香气量提供理论依据,采集宜宾烟区土壤和烤烟样品各248份,测定土壤理化性状和烤烟美拉德反应产物含量,运用因子分析法对土壤理化性状指标进行代表因子提取,将因子分析提取出的土壤理化指标分别与糠醛、糠酮、2-乙酰基呋喃、5-甲基糠醛、3,4-二甲基-2,5-呋喃二酮和2-乙酰基吡咯6种美拉德反应产物。结果可知,土壤理化性状指标中多种因素均密切影响烤烟美拉德反应产物含量,调控土壤全钾、速效钾对烤烟美拉德反应产物含量的影响最明显,调控速效磷、Mn、Mg及碱解氮含量对烤烟美拉德反应产物含量的影响次之。

To explore the relationship between soil physical and chemical properties and Maillard reaction products of flue-cured tobacco, to increase neutral aroma components of flue-cured tobacco, and to provide theoretical basis for improving tobacco quality, aroma quality and aroma quantity, 248 samples of soil and flue-cured tobacco were collected from Yibin tobacco-growing areas, and the contents of Maillard reaction products of soil physical and chemical properties and flue-cured tobacco were determined. The representative factors of soil physical and chemical properties were extracted by factor analysis, and the soil physical and chemical indexes extracted by factor analysis were respectively related to six Maillard reaction products of furfural, furfurfurone, 2-acetyl furan, 5-methylfurfural, 3,4-dimethyl-2,5-furandione and 2-acetyl pyrrole. The results show that many factors in soil physical and chemical properties closely affect the content of Maillard reaction products of flue-cured tobacco, and the most obvious effect is to regulate soil total potassium and available potassium, and the second is to regulate the content of available phosphorus, Mn, Mg and alkali-hydrolyzable nitrogen.