Study on Cut Tobacco Drying Process Based on HS-GC/MS: Principal Component Analysis, Similarity Analysis, Drying Conditions, and Drying Mechanism

Table 1

Data of HS-GC/MS results of various drying parameters.

Compound name	Content (μg/kg)
	CK	90°C	100°C	115°C	120°C
Cyclopentane, methyl-	0	0	56.64	0	0
Isovaleraldehyde	2.49	2.79	2.48	3.98	0.8
Butanal, 2-methyl- + acetol	1.26	3.1	3.59	20.22	5.44
Propanoic acid	0.77	1.53	1.2	2.12	0.53
1-Penten-3-one	0.37	0.5	1.39	0.06	0.03
2,3-Pentanedione	0.69	1.07	0	6.82	1.89
2-Butanone, 3-hydroxy-	0.44	0.43	0.5	2.64	0.64
2,3-Butanediol (Z)	0.32	1.23	0.82	1.33	0.3
2,3-Butanediol (E)	0.39	2.09	1.72	1.49	0.33
Hexanal	0.45	0.34	0.32	0.42	0.1
3(2H)-Furanone, dihydro-2-methyl-	0.52	0.74	0.93	6.57	1.35
Furfural	1.91	3.46	5.11	22.04	9.44
Furfuryl alcohol	1.13	2.18	3.31	24.15	7.93
2-Propanone, 1-(acetyloxy)-	0.12	0.19	0.43	2.51	0.72
2-Cyclopentene-1,4-dione	0.16	0.49	0.65	2.92	1.08
2-Acetylfuran	0.11	0.14	0.27	2.42	0.91
γ-Butyrolactone	0.13	0.33	0.39	1.75	0.53
2-Furanmethanol, 5-methyl-	0.14	0.18	0.27	1.41	0.28
Benzaldehyde	0.2	0.15	0.13	2.7	1.05
Furfural, 5-methyl-	0.06	0.14	0.22	2.7	1.05
2,4-Dihydroxy-2,5-dimethyl-3(2H)-furan-3-one	0.27	0.73	0.84	3.54	1.16
5-Hepten-2-one, 6-methyl-	0.33	0.4	0.38	0.85	0.24
Benzyl alcohol	0.35	0.36	0.23	2.51	0.17
Benzeneacetaldehyde	0.48	0.57	0.52	0.55	0.22
2-Acetylpyrrole	0.26	0.38	0.37	0.97	0.23
Pentanoic acid, 2-methyl-, anhydride	0.1	0.33	0.19	0.25	0.09
Undecane	0	0.28	0.26	0.2	0.11
2-Decene, 5-methyl-	0.09	0.14	0.12	0.1	0.05
Phenylethyl alcohol	0.13	0.17	0.17	0.28	0.02
4H-Pyran-4-one, 2,3-dihydro-3,5-dihydroxy-6-methyl-	5.45	8.75	9.42	48.52	18.21
Dodecane	0	0.6	0.52	0.57	0.36
Hexadecane	0	0.19	0.17	7.01	0.16
Nicotine	132.3	239.7	188.2	204.7	81.6
Solanone	1.04	1.46	1.69	4.03	1.06
Actinidiolide, dihydro-	0.08	0.14	0.08	0.14	0.03
Maltolazine	1.34	2.61	1.61	7.1	0.4
Neophytadiene	2.49	47.82	39.28	30.18	16.27