Foundation and Application of Eight-point Curing Technology

To improve the bulk-cured tobacco quality, the eight-point curing technology was established after a series of studies. The new curing technology included 8 key temperature points (38, 40, 42, 45, 47, 50, 54 and 68℃) and the related parameters. When the technology was adopted, leaf yellowing was well harmonized with moisture loss during curing process, which favored the formation and accumulation of aroma substance as well as the degradation and transformation of pigments, starch and proteins, etc. As a result, the ratio of orange leaves, the ratio of high quality leaves, the average price and the smoking quality all increased, while the proportion of unfavorable leaves decreased. The preliminary application of the new curing technology has brought better economic and social benefits. This technology has high potential for wide application.