A heated air circulation standard curing barn was used for baking tobacco leaves, and the effects of different yellowing conditions during the baking process on contents of neutral aroma components and smoking quality...A heated air circulation standard curing barn was used for baking tobacco leaves, and the effects of different yellowing conditions during the baking process on contents of neutral aroma components and smoking quality of upper leaves were studied by setting different yellowing time and color-fixing time. The results showed that during the baking process, only by prolonging the yellowing time by 24 h on the basis of control, the content of every kind of neutral aroma components in- creased obviously and the content of solanone increased by nearly 2.20 times. It was unfavorable for the degradation and accumulation of aroma components when only prolonging color-fixing time by 24 h. Prolonging both yellowing time and color- fixing time by 24 h mainly promoted the accumulation of chlorophyll degradation product neophytadiene, which increased by 33.24%, while the degradation and ac- cumulation of some aroma components were inhibited, indicating that only prolonging the yellowing time by 24 h could promote the accumulation of various kinds of neu- tral aroma components and improve the quality of tobacco leaves. The regression models were established of neutral aroma components in the first and second prin- cipal components to total aroma content, which were y=x+0.053 47 (R^2=0.919 7) and y=x+0.147 5 (R^2=0.698 4), respectively, and they were verified to be feasible.展开更多
Objective] This research aimed to investigate the effects of bio-bacterial fertilizer on quality of flue-curved tobacco. [Method] The various concentrations of bio-bacterial fertilizer were applied to flue-cured tobac...Objective] This research aimed to investigate the effects of bio-bacterial fertilizer on quality of flue-curved tobacco. [Method] The various concentrations of bio-bacterial fertilizer were applied to flue-cured tobacco as leaf fertilizer and base fertilizer respectively. [Result] The effect of bio-bacterial fertilizer on flue-cured tobac-co differed among different treatments. Compared with the control, the bio-bacterial fertilizer significantly affected the quality of flue-cured tobacco. Among al the treat-ments, Treatment 3(leaf fertilizer) showed the best treatment effect, and it significant-ly improved the quality of flue-cured tobacco. [Conclusion] The bio-bacterial fertilizer showed significant improving effect on quality of flue-cured tobacco if spayed as leaf fertilizer.展开更多
基金Supported by Major Special Project of Strong-flavor Characteristic High-quality Tobacco Development of China National Tobacco Company(110201101001 TS-01)China Tobacco Project of Jilin Province(JY2013001)~~
文摘A heated air circulation standard curing barn was used for baking tobacco leaves, and the effects of different yellowing conditions during the baking process on contents of neutral aroma components and smoking quality of upper leaves were studied by setting different yellowing time and color-fixing time. The results showed that during the baking process, only by prolonging the yellowing time by 24 h on the basis of control, the content of every kind of neutral aroma components in- creased obviously and the content of solanone increased by nearly 2.20 times. It was unfavorable for the degradation and accumulation of aroma components when only prolonging color-fixing time by 24 h. Prolonging both yellowing time and color- fixing time by 24 h mainly promoted the accumulation of chlorophyll degradation product neophytadiene, which increased by 33.24%, while the degradation and ac- cumulation of some aroma components were inhibited, indicating that only prolonging the yellowing time by 24 h could promote the accumulation of various kinds of neu- tral aroma components and improve the quality of tobacco leaves. The regression models were established of neutral aroma components in the first and second prin- cipal components to total aroma content, which were y=x+0.053 47 (R^2=0.919 7) and y=x+0.147 5 (R^2=0.698 4), respectively, and they were verified to be feasible.
基金Supported by Funding Projects of Henan Provincial Tobacco Company(HYKJM201203,HYKJ201305)~~
文摘Objective] This research aimed to investigate the effects of bio-bacterial fertilizer on quality of flue-curved tobacco. [Method] The various concentrations of bio-bacterial fertilizer were applied to flue-cured tobacco as leaf fertilizer and base fertilizer respectively. [Result] The effect of bio-bacterial fertilizer on flue-cured tobac-co differed among different treatments. Compared with the control, the bio-bacterial fertilizer significantly affected the quality of flue-cured tobacco. Among al the treat-ments, Treatment 3(leaf fertilizer) showed the best treatment effect, and it significant-ly improved the quality of flue-cured tobacco. [Conclusion] The bio-bacterial fertilizer showed significant improving effect on quality of flue-cured tobacco if spayed as leaf fertilizer.
文摘【目的】探明烟草源微生物发酵对雪茄烟叶品质和挥发性致香成分的影响,为人工接菌发酵雪茄烟叶工业化生产提供菌种资源和理论依据。【方法】利用从进口雪茄烟中筛选的1株地衣芽孢杆菌(Bacillus licheniformis)FZ1发酵雪茄烟叶,对其进行感官评价,通过GC-MS检测烟叶中性致香成分,利用SIMCA进行主成分分析(PCA)和正交偏最小二乘分析(OPLS-DA),使用变量投影重要度(Variable Importance in Projection,VIP)>1和独立t检验中P<0.05筛选差异致香成分,并结合感官评分进行相关性分析与ROAV值变化,明确地衣芽孢杆菌(B.licheniformis)FZ1提升雪茄烟叶感官品质的关键致香成分及其对香气的贡献。【结果】雪茄烟叶经FZ1发酵后香气明显提升、刺激性减少;香气总量提高18.84%,以烯烃类、酮类和醇类增加为主;共筛选出15种差异中性致香成分,其中,11种差异致香成分显著上调,新植二烯、金合欢基丙酮、茄酮、香叶基丙酮、2,4-二叔丁基苯酚和植物醇6种与雪茄烟叶香气呈显著正相关关系,是FZ1发酵雪茄烟叶的关键差异致香成分;另有正十五烷、邻苯二甲酸二丁酯、苯乙醛和2,4-二叔丁基-6-硝基苯酚共4种差异致香成分显著下调,其中,2,4-二叔丁基-6-硝基苯酚和苯乙醛与雪茄烟叶的刺激性呈显著正相关关系;茄酮、香叶基丙酮、巨豆三烯酮A、巨豆三烯酮B和植物醇对香气的贡献增大。【结论】FZ1发酵雪茄烟叶可明显改善香气品质,增加关键差异致香成分。