改良热泵密集烤房烘烤工艺及其效果分析OACSTPCD

In order to make further use of the advantage of heat pump dense curing barn and solve the problems such as mismatch between heat pump dense curing barn and existing technology,and the improvement of chemical composition of first-cured tobacco leaves,the traditional three-stage curing process was improved.The main chemical components,petro-leum ether extracts,polyphenols,aroma metabolites and smoking quality of the first flue-cured tobacco leaves were ana-lyzed.The results showed that compared with the traditional three-stage curing process,the chemical composition assign-ment of the first flue-cured tobacco leaves with the improved three-stage curing process increased by 8.9%,the starch content decreased by 20%,and the content of neutral aroma substances and polyphenols increased by 0.7%and 49.4%,respectively,and the smoking score increased by 6.2%.The results showed that the improved three-stage curing process could promote the accumulation of aroma metabolites and the improvement of chemical quality and smoking quality of tobac-co leaves.Comprehensive analysis shows that the improved three-stage curing process can effectively improve the quality of flue-cured tobacco in dense heat pump curing room and has good practical value.