48th TWC, Tob. Work. Conf., 2018, abstr. 16

Comparison of chemical compounds in upper leaves of flue-cured tobacco among different countries

WANG J.; ZHANG Y.; ZHOU H.; LIANG T.; GUO W.; ZHANG S.
Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China

By using 281 upper leaves samples of flue-cured tobacco harvested in 2016 from China, Zimbabwe, Zambia, Malawi and Tanzania as material, the contents of chemical compounds were compared among different countries. The results showed that: Significant differences were observed in the contents of total sugar, reducing sugar, total alkaloids, potassium and chlorine among the samples of five countries. Samples from China had higher total sugar (28.46%) and reducing sugar content (24.88%), while only 15.45% and 14.54%, respectively, in the samples from Tanzania. The contents of total alkaloids, potassium and chlorine of upper leaf samples from China were 2.91%, 1.80% and 0.29%, respectively, which were much lower than it in samples from other countries. Total nitrogen contents of the samples from China, Zimbabwe and Malawi were similar and less than those from Tanzania and Zambia. The average content of starch in upper leaves samples of five countries were 2.86%-5.43% with the highest in the samples from Zimbabwe, followed by those from China, Zambia, Malawi and Tanzania. (Reprinted with permission)