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Chinese Agricultural Science Bulletin ›› 2025, Vol. 41 ›› Issue (1): 148-153.doi: 10.11924/j.issn.1000-6850.casb2024-0467

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Relationship Between Appearance Quality and Physicochemical Indexes of Main Variety of Cigar Wrapper Leaves in Hubei Province

ZHANG Ting(), LI Jinhai, XIAO Shaohong, WANG Kang, LIU Jun(), LIAO Xiaoling(), CHEN Hui, YU Fei, PENG Longjun, YE Jiaojiao, MA Tong   

  1. Hubei Tobacco Quality Supervision & Test Station, Wuhan 430030
  • Received:2024-07-15 Revised:2024-11-13 Online:2025-01-05 Published:2025-01-01

Abstract:

In order to clarify the key physical and chemical indicators that affect the appearance quality of the main varieties ‘CX26’ and ‘CX80’ wrapper leaves in Hubei Province from 2020 to 2023, key physical and chemical indicators were measured. Through statistical analysis, key physical and chemical indicators, including chromatic aberration, thickness difference, elongation at break, nicotine, total sugar, total nitrogen, and appearance quality indicators of wrapper such as integrity, uniformity, body, vein, and oil were determined. The results of analysis of variance showed significant differences in chromatic aberration, total sugar, chlorine, nicotine, and appearance quality scores among different varieties of wrapper leaves. Descriptive statistical results showed that compared with ‘CX80’, ‘CX26’had lower chromatic aberration, thickness difference, total sugar content, higher elongation at break, nicotine content, chlorine content, potassium content, and the same total nitrogen content, with a higher sensory evaluation score. Elongation at break, total sugar, and chlorine were significantly and positively correlated with the appearance quality score, chromatic aberration and thickness difference were significantly and negatively correlated with the appearance quality score. The results of stepwise regression and path analysis showed that the key physical indicators affecting the appearance quality of the ‘CX26’ wrapper were elongation at break and chromatic aberration, while elongation at break, chromatic aberration, and thickness difference were key indicators for variety ‘CX80’. Established regression prediction model can be used to quickly and accurately determine the appearance quality of tobacco leaves. Therefore, to improve the appearance quality of Hubei tobacco wrapper leaves, attention should be given to the elongation at break, chromatic aberration, and thickness difference of tobacco which may affect elasticity and color of tobacco leaves.

Key words: Hubei, cigar tobacco leaves, wrapper, appearance quality, chromatic aberration, thickness difference, elongation at break, physical and chemical indicators, regression analysis, path analysis