| In order to study the effect of different intensive baking conditions on the quality of flue-cured tobacco in.The experiment was carried out in the town of Hengshan Township,Maocao Township,Xichang County,Liangshan County.The flue-cured tobacco varieties were the main cultivars of Honghuadajinyuan.The experiment was carried out by designing the baking treatment at different temperature and temperature.The results showed that the water content,SPAD value and chromaticity of flue-cured tobacco leaves were changed during the natural yellowing of flue-cured tobacco leaves.The results showed that the flue-cured tobacco The results showed that the moisture content,SPAD value and chromaticity value of tobacco were analyzed.Then the appearance quality,chemical composition,chroma,evaluation quality and economic traits were studied.The main findings are as follows:(1)In the natural yellowing experiment of the flue-cured tobacco leaves of Honghuadajinyuan,the water content of the lower leaves of the flue-cured tobacco varieties was the highest,the lower leaves were the second,the lower leaves were the lowest,and the lower leaves in the natural yellowing process The fastest,the upper leaves followed,the middle of the slowest leaves.The SPAD of the leaves of the lower leaves was the highest and the degradation rate was the fastest and the rate was stable.The SPAD of the leaves of the middle leaves was the highest,the upper leaves were the lowest,and the SPAD values in the middle leaves of the late yellowing were the fastest,and the middle leaves and the upper leaves SPAD values are approximately equal and significantly higher than the lower leaves.In terms of chromaticity,L value,a * value,b * value and C * value showed an increasing trend,the growth rate of the lower leaf was the fastest and the growth rate was the most stable,and the a * value was the highest,In the middle of the leaves,the upper leaves were the lowest and the a * values were higher than the upper leaves and the upper leaves were higher than the middle leaves.(2)The SPAD values of the upper leaves of Honghuadajinyuan rhododendron varieties were declining during the baking process,and the values were reduced to zero at the end of baking until 42 ?.38 ? at the end of the control treatment CK(dry bulb temperature 38 ?,steady temperature baking 22h;dry bulb temperature 42 ?,steady temperature baking 14h;dry bulb temperature 45 ?,steady temperature baking 20h;dry bulb temperature 54 ?,the temperature was baked for 18h),the highest SPAD value,T1(38 ? steady temperature 24 h,42 ? temperature 12 h,45 ? temperature 18 h,54 ? steady temperature 12h)treatment value was significantly lower than other treatments,the maximum And the minimum difference of 5.80.Baking to 40 ? at the end of the treatment of SPAD values were degraded to 5.00 below.The results showed that fast baking at 38 ? and prolonging the temperature stability could contribute to the degradation of chlorophyll in the upper leaves.The trend of the middle leaves was the same as that of the upper leaves,but there was a difference in the value.At the end of the treatment,CK and the lowest T1 treatment at 37 ? were 9.00.40 ?.T1 and T2 at 38 ?,42 ? steady temperature 16 h,45 ? steady temperature 18 h,54 ? temperature 16h)treatment SPAD value down to 1.00 below,indicating that the temperature stabilization time at 38 ? to promote Honghuadajinyuan varieties of central leaf chlorophyll degradation.(3)The effect of different baking conditions on the appearance of the quality of the baked tobacco leaves was higher than that of the middle leaves.The baking treatment was T3 and T4,and the corresponding baking treatments were T3: 38 ? 30 ?,42 ? steady temperature 12 h,45 ? temperature 22 h,54 ? steady temperature 12h;T4: 38 ? steady temperature 30 h,42 ? steady temperature 16 h,45 ? steady temperature 22 h,54 ? steady temperature 16h;142.31 points,139.79 points.In the comprehensive evaluation of the upper baked tobacco,the evaluation score was higher than that of the baking treatment T3 and CKB.The corresponding baking treatments were T3: 38 ? steady temperature 30 h,42 ? steady temperature 12 h,45 ? steady temperature 22 h,54 ? C5: dry bulb temperature 38 ?,steady temperature baking 22h;dry bulb temperature 42 ?,steady temperature baking 14h;dry bulb temperature 48 ?,steady temperature baking 20h;dry bulb temperature 54 ?,The steady temperature baking 18h;the corresponding evaluation scores were 143.27 points,141.16 points.(4)The total sugar content of tobacco leaves in the middle leaves was higher than that in the conventional baking and roasting,and the contents of total sugar in the tobacco leaves were all within the range of the total sugar content of the tobacco leaves under different baking conditions.The content of total sugar in the treated sugar was 22.85%,26.40%,23.64%,24.43% and 22.65% respectively.The content of reducing sugar was higher in the reducing sugar,and the content of reducing sugar was higher in the range of high quality flue-cured tobacco,The value of 20.44%,respectively,18.82%;sugar than conventional baking treatment is low,sugar than conventional baking treatment content is high.The content of total sugar in the upper leaves was 26.23%,27.59% and 28.73%,respectively.The content of reducing sugar in T2 and T3 was moderate,and the content of total sugar was higher Respectively,20.00% and 20.21%,respectively.In the two treatments,the content of sugar in T1 treatment was higher than that of other treatments,the value was 0.94;T2 treatment was relatively low,0.83.(5)In the non-baking conditions,the economic traits of Honghuadajinyuan from the upper proportion of flue-cured tobacco and baking in kg dry coal consumption,kg dry smoke consumption on the comparative analysis shows that the central and The quality of the upper baked tobacco was treated with baking T3(38 ? steady temperature 30 h,42 ? steady temperature 12 h,45 ? temperature 22 h,54 ? steady temperature 12h)the best,The consumption of kg dry tobacco and the power consumption of kg dry tobacco were 79.52%,21.48%,2.66 kg and 0.68 k W · h-1,respectively.The proportion of medium flue-cured tobacco on the upper Kg of dry coal consumption,kg of smoke consumption were 51.31%,44.04%,0.79 kg,0.40 k W · h-1.(6)The total score of sensory quality in the middle and middle leaves of Honghuadajinyuan was higher than that of the upper leaves,and the total weight of the sensory quality(38 ? steady temperature 30 h,42 ? steady temperature 12 h,45 ? temperature 22 h,54 ? steady temperature 12h)the highest score,respectively,the middle leaves 66.2 points and 62.8 points. |
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