Biocatalytic degradation of selected tobacco chemicals from mainstream cigarette smoke using Croton megalocarpus seed husk biochar

Bulletin of the National Research Centre

Table 2 Percentage reduction of model tobacco toxins—benzene and phenol in cigarette smoke

Model smoke toxin		Benzene				Phenol
Residence time (s)		2	5	10	15	2	5	10	15
Model cigarette	Nature	Concentration \(\left(\upmu{\mathrm{g}}\,{\mathrm{g}}^{-1}\right)\)				Concentration \(\left(\upmu{\mathrm{g}}\,{\mathrm{g}}^{-1}\right)\)
MM-R cigarette	Untreated	10.43	7.88	6.38	6.26	1.89	1.53	0.81	0.51
	Treated	8.77	5.27	3.15	2.76	1.61	1.04	0.56	0.32
% Reduction		15.96	33.12	50.62	55.91	14.81	30.86	32.03	37.25
RR-M cigarette	Untreated	9.13	6.58	4.21	3.41	3.04	2.14	1.18	0.71
	Treated	7.04	5.43	3.54	2.65	2.01	1.23	0.56	0.24
% Reduction		15.91	17.47	22.28	22.89	33.88	42.52	52.54	66.19