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Table 4 The sensory evaluation of fermented tobacco

From: Influence of microbiota and metabolites on the quality of tobacco during fermentation

Groups Aroma quality
9–0
Aroma quantity
9–0
Smoke density
9–0
Offensive odor
9–0
Physiological strength
9–0
Irritation
9–0
Aftertaste
9–0
Combustibility
9–0
Cigarette ash
9–0
Control 3.5 6.0 6.0 5.0 8.2 3.0 3.5 8.0 8.0
25 °C/ 2 weeks 4.5 6.2 6.0 5.3 8.0 3.8 4.0 8.0 8.0
25 °C/ 4 weeks 5.0 6.5 6.3 5.5 7.5 4.5 5.0 8.0 8.0
25 °C/ 6 weeks 5.7 6.8 6.5 5.7 7.3 5.3 5.3 8.0 8.0
35 °C/ 2 weeks 5.0 6.3 6.2 5.5 7.5 4.5 5.0 8.0 8.0
35 °C/ 4 weeks 5.5 6.6 6.3 5.7 7.3 5.0 5.3 8.0 8.0
35 °C/ 6 weeks 5.8 7.0 6.5 5.8 7.2 5.5 5.5 8.0 8.0
45 °C/ 2 weeks 4.7 6.5 6.3 5.5 8.0 4.0 5.0 8.0 8.0
45 °C/ 4 weeks 5.5 6.8 6.5 5.8 7.5 5.2 5.3 8.0 8.0
45 °C/ 6 weeks 6.0 7.2 6.8 6.0 7.3 5.8 5.8 8.0 8.0
  1. Aroma quality indicates the quality of aroma and higher scores represent better quality of aroma. Aroma quantity indicates the content of aroma and higher scores represent greater quantity of aroma. Smoke density indicates the concentration of aroma with higher scores representing higher concentration. Offensive odor indicates undesirable aromas produced by burning cigarettes, and higher scores represent less offensive odor. Physiological strength indicates the physical impact of smoke felt by smokers. The higher strength score means greater impact and stronger satisfaction. Irritation indicates slight and obvious sensory discomfort caused by smoke and higher scores represent less irritant gas. Aftertaste indicates the taste sensation after the smoke leaves the mouth and nasal cavity and higher scores mean greater aftertaste. Cigarette’s Combustibility refers to the combustion characteristics of tobacco products, which is an important physical characteristic of tobacco leaves, including smoldering, burning speed, burning uniformity, burning completeness, soot color as well as cohesion. Cigarette ash indicates the color of the remaining soot after burning tobacco leaves, white is the best, followed by gray