| In order to seek the most appropriate harvest maturity and the most optimized flue-curing process of Nanjiang 3, different appearance mature features and different temperature and humidity at the yellowing and leaf drying stage were set up; then the relationship among the quality level, the chemical components, their coordination and the sensory quality of flue-cured tobacco leaves were studied.1、In order to seek the most appropriate harvest maturity of Nanjiang 3, four processing depending on the changing of leaf and vein were set up. The results showed that: the first-class tobacco rate and average price of lower leaves maturity II are 29.99%, 18.95Yuan/㎏, and2.09~7.31% and 0.33~1.07 Yuan/㎏ respectively, which are higher than corresponding data of other treatments. Except for total nitrogen content lower than treatments I, the other chemical ingredients are superior to other treatments. Aroma quality and aroma volume scored extra 0.84~ 0.48 and 0.08~0.28 points than other treatments, and smoking remaining indicators are better than other treatments. The first-class tobacco rate and average price of central leaves maturity III are 70.64%, 23.27Yuan/ ㎏, 2.25~12.93% and 0.22~1.15 Yuan/ ㎏respectively, which are also better other treatments. Except for nicotine content lower than treatments I, the other chemical ingredients are superior to other treatments, Except for offensive odor and irritation lower than maturity II,the other smoking quality are superior to other treatments. The smoking score of maturity III are as same as maturity IV.The first-class tobacco rate, average price and smoking score of upper leaves maturity III are 46.42%, 21.82Yuan/㎏ and 62.50,1.61~14.73%, 0.16~1.03 Yuan/㎏, 0.4~1.06 respectively. Except for nicotine content lower than the standard of high quality tobacco, the other chemical ingredients are superior to other treatments.2、The flue-cured quality of different parts of leaves of Nanjiang 3 with pole were researched by setting 4 yellowing temperature and humidity processes. The results showed that: XGY1, CGY3, BGY4 treatments average price are 18.80 Yuan/㎏, 22.95 Yuan/㎏, 21.09 Yuan/㎏, 0.17~0.43 Yuan/㎏, 0.09~0.53 Yuan/㎏, 0.17~0.57 Yuan/㎏ higher than other treatments respectively. XGY1, CGY3, BGY4 treatments smoking score are 64.40, 65.34, 64.13, 0.44~2.49, 0.52~1.65 and 0.42~1.73 higher than other treatments respectively. Except for nicotine cotent and total nitrogen lower than the standard of high quality tobacco, the other chemical ingredients are superior to other treatments.The flue-cured quality of different leaves of Nanjiang 3 with pole were researched by setting 4 color fixing temperature and humidity. The results showed that: the average price of XGD3, CGD3, BGD4 treatments are 18.04 Yuan/㎏, 21.84 Yuan/㎏, 20.15 Yuan/ ㎏, 0.09~0.39yuan/ ㎏, 0.25~0.40Yuan/ ㎏, 0.19~0.43Yuan/ ㎏respectively, higher than other treatments. XGD3, CGD3, BGD4 treatments smoking score are 62.94, 63.68, 62.62, 0.16~1.46, 0.18~1.82 and 0.18~1.15 respectively, higher than other treatments. For XGD3, CGD3, BGD4 treatments, aroma, taste, offensive ordor and irritation are superior to other treatments.3、The flue-cured quality of different leaves of Nanjiang 3 with loose leaf were studied by setting 4 yellowing temperature and humidity treatments. The results showed that: their average price of XSY1, XSY3, BSY4 treatments are 17.25 Yuan/㎏, 20.81 Yuan/㎏, 20.19 Yuan/㎏, 0.13~0.53yuan/㎏, 0.23~0.52Yuan/㎏, 0.20~0.58Yuan/㎏ respectively, higher than other treatments. As for XSY1, XSY3, BSY4 treatments, smoking score are 58.02, 58.52, 57.80, 0.26~0.88, 0.44~1.72 and 0.32~2.12 respectively, higher than other treatments. XSY1, XSY3, BSY4 harmony of chemical components is good.The quality of flue-cured leaves in different parts of Nanjiang 3 with loose leaf were studied by setting 4 color fixing temperature and humidity. The results showed that: average price for XSD3, CSD3, BSD4 treatments are 17.79 Yuan/㎏, 20.96 Yuan/㎏, 20.09Yuan/㎏, 0.18~0.58yuan/㎏, 0.15~0.45Yuan/㎏, 0.24~0.57Yuan/㎏respectively, higher than other treatments. XSD3, CSD3 and BSD4 treatments smoking score are 57.12, 57.70, 56.44, 0.16~1.46, 0.18~1.82 and 0.18~1.15 higher than other treatments respectively. For XSD3, CSD3 and BSD4, harmony of chemical components is good.4、In conclusion, to make sure the best quality of flue-cured tobacco, we suggest that lower leaves of Nanjiang3 should be harvested Mature2,the middle and upper leaves with Mature3.With pole leaves flue-cured, the lower tobacco leaves the constant temperature and humidity temperature which is the main body became yellow is 36℃/ 35℃, the corresponding data of middle leaves and upper leaves are38℃/35℃and 38℃/36℃. The color fixing temperature and humidity temperature of the lower, middle and upper tobacco leaves are 48℃/37℃, 48℃/37℃, 48℃/38℃.With loose leaves flue-cured, the lower tobacco leaves the constant temperature and humidity temperature which is the main body became yellow is 36℃/ 34℃, the corresponding data of middle leaves and upper leaves are38℃/34℃and 38℃/35℃. The color fixing temperature and humidity temperature of the lower, middle and upper tobacco leaves are 48℃/34℃, 48℃/34℃, 48℃/35℃. |
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