Multivariate Analysis of Major Components and Free Nicotine Content in Oral Tobacco

doi:10.11923/j.issn.2095-4050.cjas20190500020

Abstract

Abstract:

To investigate the effect of major components of oral tobacco on free nicotine content, 41 Moist Snuff oral smokeless tobacco products were investigated by the correlation analysis, regression analysis and path analysis. (1) The correlation analysis results showed that the pH value and nicotine content were positively correlated with free nicotine content and their correlation coefficient was at 1% significant level and 5% level respectively, while the water content had no significant correlation with free nicotine content. (2) The multivariate linear regression equation reached an extremely significant level, indicating that there was a strong correlation between the water content, pH value, nicotine content and free nicotine content. (3) The path analysis results showed that the degree of direct influence on the free nicotine content was in the order as the nicotine content > pH value> water content, the pH value and nicotine content were positively correlated with free nicotine content, while the water content was negatively correlated with free nicotine content. (4) The water content and nicotine content had large indirect effects on free nicotine content through pH value, and they had positive and negative effects on the free nicotine content respectively. (5) The pH value had a large indirect and negative effect on free nicotine through nicotine. So, the content of free nicotine could be increased by increasing the content of nicotine or increasing the pH value of oral smokeless tobacco products.

Key words: Oral Smokeless Tobacco Product, Water Content, pH Value, Nicotine, Free Nicotine, Correlation Analysis, Path Analysis

CLC Number:

TS411.1

Zhang Pingquan, Xu Aifei. Multivariate Analysis of Major Components and Free Nicotine Content in Oral Tobacco[J]. Journal of Agriculture, 2021, 11(1): 67-70.

Figures/Tables 6

References 26

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序号	x₁含水率/%	x₂pH值	x₃烟碱/(mg/g)	y游离烟碱/(mg/g)
1	47.75	7.70	9.51	4.00
2	29.69	7.09	19.66	5.56
3	30.99	7.04	14.58	3.98
4	43.77	7.12	21.91	6.33
5	50.21	7.58	9.95	3.90
6	54.51	7.72	9.52	4.05
7	43.73	7.12	8.28	2.39
8	24.45	7.05	19.93	5.48
9	54.22	7.74	10.12	4.36
10	42.34	6.64	27.68	5.56
……	……	……	……	……
32	17.04	7.16	14.52	4.32
33	41.15	7.00	13.82	3.66
34	27.00	5.80	15.37	1.51
35	51.61	6.55	17.02	3.18
36	43.60	6.82	14.83	3.43
37	52.16	6.64	18.66	3.75
38	30.10	6.76	10.99	2.43
39	48.59	7.51	11.45	4.30
40	51.99	7.56	9.00	3.48
41	50.80	7.56	10.86	4.20

序号	x₁含水率/%	x₂pH值	x₃烟碱/(mg/g)	y游离烟碱/(mg/g)
1	47.75	7.70	9.51	4.00
2	29.69	7.09	19.66	5.56
3	30.99	7.04	14.58	3.98
4	43.77	7.12	21.91	6.33
5	50.21	7.58	9.95	3.90
6	54.51	7.72	9.52	4.05
7	43.73	7.12	8.28	2.39
8	24.45	7.05	19.93	5.48
9	54.22	7.74	10.12	4.36
10	42.34	6.64	27.68	5.56
……	……	……	……	……
32	17.04	7.16	14.52	4.32
33	41.15	7.00	13.82	3.66
34	27.00	5.80	15.37	1.51
35	51.61	6.55	17.02	3.18
36	43.60	6.82	14.83	3.43
37	52.16	6.64	18.66	3.75
38	30.10	6.76	10.99	2.43
39	48.59	7.51	11.45	4.30
40	51.99	7.56	9.00	3.48
41	50.80	7.56	10.86	4.20

项目	x₁含水率/%	x₂pH值	x₃烟碱/(mg/g)	y游离烟碱/(mg/g)
最小值	17.04	5.80	8.28	1.51
最大值	55.58	7.96	27.68	6.72
平均值	44.64	7.16	14.75	4.22
标准差	9.70	0.46	5.04	1.15
峰度值	0.62	0.22	-0.74	0.24
偏度值	-1.18	-0.32	0.47	-0.05

项目	x₁含水率/%	x₂pH值	x₃烟碱/(mg/g)	y游离烟碱/(mg/g)
最小值	17.04	5.80	8.28	1.51
最大值	55.58	7.96	27.68	6.72
平均值	44.64	7.16	14.75	4.22
标准差	9.70	0.46	5.04	1.15
峰度值	0.62	0.22	-0.74	0.24
偏度值	-1.18	-0.32	0.47	-0.05

项目	Kolmogorov-Smirnov(a)			Shapiro-Wilk
项目	统计量	自由度	显著性水平	统计量	自由度	显著性水平
游离烟碱(y)	0.1052	41	0.2	0.9755	41	0.5117