Research on tobacco composition analysis and ratio optimization strategy using data mining technology

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Chemical composition of tobacco tobacco

	PC1	PC2	PC3	F
a	-1.107	7.974	-6.422	0.883
b	-1.644	7.71	-6.57	0.516
c	-1.32	8.651	-6.281	1.02
d	-1.069	8.09	-6.163	0.981
e	-1.285	7.363	-6.007	0.682
f	-1.52	8.417	-6.178	0.864
g	-1.785	8.587	-6.298	0.771
h	-2.161	9.382	-6.926	0.746
i	-2.428	11.858	-6.711	1.434

The eigenvectors in the top five main components

Index Thickness	Principal component
	1	2	3	4	5
Blade density	0.81	0.047	0.303	0.033	0.206
Single leaf mass	0.851	0.003	0.116	0.224	0.24
Balanced moisture content	0.769	−0.102	0.033	−0.096	−0.173
Pull	0.154	0.319	−0.676	0.608	0.075
Elongation	0.028	0.818	0.182	−0.214	0.322
Fill value	−0.197	0.84	0.039	−0.065	−0.259
Stemmatation	−0.3	0.085	0.674	0.62	−0.174
Index	−0.732	−0.183	0.078	0.093	0.505

Principal component factor load matrix

Constituent	Main component factor load
	1	2	3
Total nitrogen / %	0.922	0.079	−0.097
Chlorine / %	0.848	−0.092	−0.257
Total sugar	0.859	0.499	0.21
Reduced sugar / %	0.781	0.235	0.593
Potassium chlorbium	−0.761	0.378	0.497
Potassium / %	−0.746	0.586	0.265
Nicotine / %	0.197	1.004	−0.312
Glycosoda ratio	0.472	0.881	−0.094
Nitrogen base ratio	−0.621	0.764	−0.116
Bisugar ratio	0.387	−0.169	0.943
Characteristic root	4.624	3.1	1.69
The percentage of variance / %	46.319	30.937	16.644
Cumulative contribution rate	46.319	77.256	93.900

The test of the best formula for the best raw material of tobacco

Serial Number	Odor	Tune	Volume Of Aroma	Aroma Quality	Offensive Odor	Aftertaste	Irritating	Total Score
1	4	19	8	7	19.5	15	16	86
2	4	17.5	9.5	7	18.5	15	16	85.5
3	4	16.5	10.5	7	17	15	16	82.5
Average								84.5

Standardized concentration

Sample	Total Sugar	Reduction Sugar	Total Nitrogen	Total Vegetable Base	Total Vegetable Base	Chloride Ion
Conventional Tobacco	9.25	7.84	1.54	1.15	2.54	0.88
Ours	7.88	7.65	0.33	0.15	0.75	0.36

Descriptive analysis of chemical constituents in different producing areas

Index		a	b	c	d	e
Soluble sugar	M ± SD	30.54±1.89	32.72±4.96	31.73±4.43	30.38±2.79	33.62±2.03
	CV	12.34	18.35	34.57	9.47	28.29
Reduction sugar	M ± SD	26.65±4.86	28.34±4.03	26.74±3.87	26.3±0.92	30.64±4.77
	CV	17.6	21.18	17.14	11.54	11.97
Total nitrogen	M ± SD	1.93±1.79	1.88±0.17	1.5±0.24	1.68±0.55	1.79±3.36
	CV	0.06	0.16	0.05	0.01	0.05
Ncotine	M ± SD	1.8±1.47	2.51±1.33	2.81±3.38	2.74±3.36	2.04±3.34
	CV	0.14	0.38	0.22	0.05	0.16
Potassium	M ± SD	1.92±2.2	2.36±2.85	2.4±0.17	2.29±3.45	2.79±3.31
	CV	0.61	0.15	0.23	0.2	0.28
Clorine	M ± SD	0.37±4.76	0.4±4.81	0.22±2.35	0.23±0.6	0.61±4.66
	CV	0.04	0.04	0.01	0.07	0.05
Sarch	M ± SD	3.33±1.3	2.53±0.55	4.42±2.43	2.75±2.12	3.93±1.37
	CV	0.22	0.4	1.17	0.76	0.42
Glycosoda ratio	M ± SD	14.69±4.98	15.3±0.27	13.66±4.09	12.53±3.98	14.62±4.61
	CV	24.04	33.89	21.59	6.33	17.09
Nitrogen base ratio	M ± SD	1.33±4.98	1.15±1.45	0.68±3.79	1.07±1.01	1.07±0.78
	CV	0.03	0.08	0.04	0.01	0.09
Potassium chlorbium	M ± SD	5.53±2.58	10.01±4.8	8.33±1.79	7.56±3.69	9.97±4.36
	CV	3.26	23.08	50.78	14.56	13.19

Correlation coefficients between chemical indexes

Index	1	2	3	4	5	6	7	8	9	10
1. Total sugar	1
2. Reduction sugar	0.707	1
3. Total nitrogen	−0.168	−0.312	1
4. Nicotine	−0.499	−0.452	0.343	1
5. Potassium	0.367	−0.01	0.395	−0.292	1
6. Chlorine	−0.157	−0.079	0.298	−0.073	0.13	1
7. Starch	−0.101	−0.038	−0.242	0.11	−0.28	−0.054	1
8. Glycosoda ratio	0.779	0.641	−0.272	−0.859	0.334	0.029	−0.128	1
9. Nitrogen base ratio	0.377	0.239	0.306	−0.789	0.533	0.213	−0.265	0.747	1
10. Potassium chlorbium	0.273	−0.027	0.063	−0.135	0.418	−0.666	−0.088	0.16	0.142	1

The correlation coefficient matrix of each index of different natural properties

Index	Thickness	Blade density	Single leaf mass	Balanced moisture content	Pull	Elongation	Fill value	Stemmatation
Thickness	1	0.682**	0.494**	−0.023	0.062	−0.054	−0.068	−0.441**
Blade density	0.685	1	0.524**	0.144*	0.031	−0.165*	−0.102	−0.488**
Single leaf mass	0.506**	0.502**	1	0.032	−0.041	−0.169*	−0.206*	−0.461**
Balanced moisture content	−0.024	0.166*	0.044	1	0.053	0.144	−0.123	−0.131
Pull	0.078	0.042	−0.042	0.051	1	0.453**	0.035	−0.085
Elongation	−0.074	−0.161*	−0.162*	0.134	0.463**	1	0.086	−0.021
Fill value	−0.082	−0.116	−0.202*	−0.116	0.025	0.098	1	0.194*
Stemmatation	−0.439**	−0.489**	−0.449**	−0.123	−0.113	−0.024	0.207*	1

The eigenvalues and contribution rate of each main component

Principal component	eigenvalue	Contribution rate	Cumulative contribution rate
1	2.608	32.60%	32.60%
2	1.572	19.65%	52.25%
3	1.175	14.69%	66.94%
4	0.894	11.18%	78.12%
5	0.579	7.24%	85.36%
6	0.416	5.20%	90.56%
7	0.41	5.13%	95.69%
8	0.346	4.31%	100%

The harmful content of mainstream smoke

Sample	Carbon monoxide	Hydrocyanic acid	benzpyrene	Crodal aldehyde	phenol	Ammonia gas	NNK	Hazard index
Conventional Tobacco	12.2	95	4.21	18.65	3.08	3.9	7.05	6.65
Ours	10.5	16	5	2.1	3.27	3.2	9.45	5.21