Effects of Different Storage Environment on the Aging Quality of Primary Flue-cured Tobacco Leaves of Longjiang 911 Variety

DU Jingshan; LIU Qian; E Zhiying; QU Xianglin; LUAN Li; LIU Yu; SHEN Hongtao; WANG Yanfang; LIU Ling

doi:10.15933/j.cnki.1004-3268.2025.11.017

Abstract：To explore the influence of different storage environments on the aging quality of primary flue-cured tobacco leaves,the C2L and C3V grades of primary flue-cured tobacco leaves of the Longjiang 911 variety,which was mainly cultivated in Heilongjiang Province,were used as experimental materials.They were respectively placed in the aging warehouses in Boli County of Heilongjiang Province,Xinzheng City of Henan Province,and Kunming City of Yunnan Province for natural aging,and the differences in sensory quality and chemical components of the tobacco leaves under different storage environments were systematically compared.The results showed that with the increase of aging time,the total sugar content,reducing sugar content,ratio of total sugar to nicotine and ratio of reducing sugar to total sugar of C2L and C3V grade tobacco leaves in each warehouse overall increased significantly,while the total nitrogen content,total alkaloid content,starch content,total polyphenol content and free amino acid content decreased significantly.At 18 months of natural aging,compared with those in the Boli County warehouse,the contents of starch,total polyphenols,and free amino acids in C2L tobacco leaves stored in the Xinzheng City warehouse decreased by 5.86%,4.30%,and 6.77%,respectively;for C3V tobacco leaves,these three indicators decreased by 2.35%,1.86%,and 7.92%,respectively.The three indicators of C2L tobacco leaves in the aging warehouse in Kunming City decreased by 9.30%,4.77%and 11.11%respectively,and the C3V tobacco leaves decreased by 3.85%,2.87%and 17.12%respectively.At the same time,the contents of total sugar and reducing sugar of C2L tobacco leaves in the aging warehouse in Xinzheng City increased by 2.10%and 3.72%respectively.The C3V tobacco leaves increased by 6.09%and 5.40%respectively.The C2L tobacco leaves in the aging warehouse in Kunming City increased by 2.74%and 7.58%respectively,and the C3V tobacco leaves increased by 8.43%and 10.92%respectively.The sensory quality scores of tobacco leaves in different aging warehouses all showed a trend of first increasing and then stabilizing.The sensory quality of C2L and C3V tobacco leaves in the Kunming aging warehouse and C2L tobacco leaves in Xinzheng City aging warehouse had the highest sensory quality scores in the 12th month of aging,which was three months earlier than that of the aging warehouse in Boli County.Throughout the entire aging cycle,the sensory quality of the two grades of tobacco leaves was shown as follows:Kunming City>Xinzheng City>Boli County.In conclusion,compared with the aging warehouse in Boli County,Heilongjiang Province,the aging warehouses in Kunming City,Yunnan Province and Xinzheng City,Henan Province could significantly accelerate the aging process of tobacco leaves and improve the aging quality of tobacco leaves.Among them,the promoting effect of the aging environment in Kunming City was the most significant,with the fastest aging speed and the highest sensory score.