| This essay is based on 6 representative levels of 78 sample of flue-cured tobacco ,namely the enriched flavour,clear flavour and midlle of 13 typical country (city) in Henan,Yunnan,Fujian,Guizhou provinces, and analysis, describe difference typical experiment of its calculation on routine chemical components,nonvolatile organic acid and flavor components, the main research conclusions are as followings:(1) According to routine chemical components, we get the conculsions: in Henan province the quantities of N, Cl, nicotine, total sugar, reducing sugar are within the high quality tobacco leaves, but K, K/Cl is lower than the average; the ratio of sugar to nicotine is higher than average, the Schmuck's value is a little higher too. In Yunnan province the average of TN,nicotine,Schmuck's value are all within the high quality tobacco leaves. K,Cl are a little lower, total sugar,reducing sugar,the ratio of sugar to nicotine are higher than the average. In Guizhou province TN,K,Cl,K/Cl,nicotine are within the high quality tobacco leaves, total sugar,reducing sugar,the ratio of sugar to nicotine and the Schmuck's value is higher than the high quality tobacco leaves. In Fujian province, TN, K, Cl, K/Cl and nicotine are within the high quality tobacco leaves, total sugar, reducing sugar, Schmuck's value and the ratio of sugar to nicotine are higher.(2) The significant differences in test results of routine chemical constituents showed that: quantities of total sugar, reducing sugar of flue-cured Tobacco in Yunnan, Guizhou, Fujian are higher than in Henan, and also higher than the high quality tobacco leaves. K in henan is lower than other three provinces, and Guizhou is the highest one in four provinces in protein and Schmuck's value,also above the upper limit of the high quality tobacco leaves. And there is great difference in nicotine and TN in henan among other three provinces.(3) The difference test of nonvolatile organic acid shows that the quantity of nonvolatile organic acid in henan is higher than other three provinces, and the difference is remarkable. There is the same disciplinarian in side effect between malic acid and citric acid, the quantity are higher than other three provinces. Quantity of oxalic acid in Henan is higher than Fujian provice, and the others'differences are not clear.(4) Analyzing on quantity of flavor components, the conclusions are as followings:The quantity of neophytadiene is the highest one in flavor components in Henan tobbaco, and then the sequence is oxidized Solanone, Solanone, 3-hydroxyl damascenone, 3- oxidized ionol, megastigmatrienone(D), and others are all lower. The quantity of neophytadiene is the highest one in flavor components in Yunnan tobacco, followed by oxidized Solanone, megastigmatrienone(D), megastigmatrien- one(B), 3-hydroxyldamascenone, Solanone, 3- oxidized ionol , others are lower too.(5) Flavor components content of the significant differences in test results showed that: Henan and Yunnan compared to carotenoids degradation products, the Malaysian-3-of Violet alcohol, acetone-Geranyl, 6-methyl-5-Heptene -2-one more difference between the total, and are lower than in Henan, Yunnan; Maillard reaction products, furfural, FA, 5 - methyl furfural and the total products have larger difference, furfural and 5-methyl furfural in Henan is less than Yunnan, and the contents of FA and Maillard reaction product in Henan are larger than in Yunnan, the remaining material in addition to methicillin-phenol, did not show significant differences. Henan and Guizhou compared Maillard reaction products, there are significant differences in FA, 5 - methyl furfural, acetyl-pyrrole, dihydro furanone, which Furfuralcohol in Henan is higher, and the other is lower than in Guizhou, but the total Maillard reaction product did not show significant differences. Remaining significant differences in the material is also available in geranylacetone, Solanone, phenylethyl alcohol and Methoxyphenol, the major category is also only the total category products degraded by cembrane significantly, and is higher in Henan than in Guizhou. |
