Acta Agriculturae Zhejiangensis ›› 2025, Vol. 37 ›› Issue (9): 1969-1980.DOI: 10.3969/j.issn.1004-1524.20241019

• Food Science • Previous Articles     Next Articles

Influence of Bacillus methylotrophicus on contents and coordination of chemical composition based on the primary-cured greenish tobacco

WANG Ting1(), FAN Yuxin1, WANG Hui2, DU Jingshan1, SHI Qiuhuan2, WANG Yujie2,*(), SHEN Hongtao3,*(), WANG Yanfang1, XI Jiaqin4, LIU Ling1   

  1. 1 College of Agriculture, Henan University of Science and Technology, Luoyang 471023, Henan, China
    2 Luoyang Branch of Henan Provincial Tobacco Corporation, Luoyang 471023, Henan, China
    3 Technology Center, China Tobacco Henan Industrial Limited Company, Zhengzhou 450016, China
    4 Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
  • Received:2024-11-22 Online:2025-09-25 Published:2025-10-15
  • Contact: WANG Yujie,SHEN Hongtao

Abstract:

In order to improve the intrinsic quality of Luoyang primary flue-cured tobacco and enhance its industrial utilization value, the B2V and C3V grade tobacco leaves of Luoyang LY1306 were used as test materials. Bacillus methylotrophicus (JLZY-5) was sprayed with four concentration gradients of CK (0%), S1 (12%), S2 (24%) and S3 (36%) on the upper (B2V) and middle (C3V) parts of the primary-cured greenish tobacco, respectively. The effects of microorganisms on sensory evaluation quality, chemical composition contents and coordination of primary-cured greenish tobacco were measured, and the feasibility of using microorganisms to regulate the aging process of primary cured tobacco was discussed. The results showed that the aroma quality, aroma quantity, aftertaste, offensive odor, irritancy and total score of sensory evaluation of tobacco leaves increased with the extension of aging time. Spraying Bacillus methylotrophicus could effectively increase the total score of sensory evaluation of the primary-cured greenish tobacco and improve quality of tobacco leaves. Bacillus methylotrophicus with S2 treatment had the best effect during the aging process. The contents of total alkaloids, total nitrogen and starch in the upper and middle greenish tobacco were reduced by the effects of Bacillus methylotrophicus spraying (except the total alkaloids contents in the middle tobacco S1 and S3 treatments), the contents of reducing sugars and total sugars were increased(except in the middle tobacco S1 treatment) by the effects of bacterial spraying, while the contents of potassium and chlorine were almost not affected. As a whole, the chemical composition coordination of the primary-cured greenish tobacco was improved, and the optimal concentration of Bacillus methylotrophicus was 24%, which improved the quality of tobacco and expanded its application scope of primary-cured greenish tobacco.

Key words: primary-cured greenish tobacco, Bacillus methylotrophicus, chemical composition, coordination, aging

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