Table 5.

Volatile compounds (VOCs) detected in C₇ and C₁₂₀ cheese samples obtained from control and experimental group

Items	VOC	C71)			C1201)
		CG	ZG	p value	CG	ZG	p value
Methyl ketones	2-pentanone	0.46±0.05	1.16±0.09	**	0.34±0.04	0.09±0.01	**
	2-heptanone	18.73±1.22	21.80±1.83	ns	44.66±3.56	7.05±0.59	**
	2-octanone	0.56±0.06	0.49±0.05	ns	2.73±0.23	0.32±0.03	**
	2-nonan-2-one	nd	nd	ns	2.33±0.19	0.29±0.03	**
	2-nonanone	6.66±0.54	7.60±0.63	ns	29.46±1.91	10.89±0.87	**
	2-decanone	nd	nd	ns	nd	nd	ns
	2-undecanone	1.66±0.14	2.37±0.20	*	nd	nd	ns
	2-tridecanone	0.39±0.04	0.45±0.05	ns	nd	nd	ns
Methyl esters	methyl butanoate	0.23±0.03	0.54±0.05	**	nd	nd	ns
	methyl hexanoate	0.29±0.03	0.42±0.04	*	0.33±0.03	0.22±0.02	**
	methyl octanoate	0.18±0.02	0.18±0.01	ns	0.04±0.00	0.12±0.01	**
Ethyl esters	ethyl butanoate	2.18±0.17	1.34±0.12	**	2.77±0.21	8.47±0.76	**
	ethyl hexanoate	1.25±0.10	0.69±0.06	**	8.58±0.69	29.09±2.11	**
	ethyl octanoate	0.65±0.07	0.47±0.05	*	1.89±0.16	15.22±1.12	**
	ethyl nonanoate	nd	nd	ns	0.05±0.00	0.44±0.04	**
	ethyl decanoate	0.37±0.04	0.41±0.04	ns	0.79±0.08	10.11±0.89	**
	ethyl dodecanoate	0.10±0.01	0.08±0.01	ns	0.12±0.01	2.37±0.18	**
	ethyl tetradecanoate	nd	nd	ns	nd	0.51±0.05	**
	ethyl hexadecanoate	nd	nd	ns	nd	0.15±0.02	**
Lactones	cis-γ-dodec-6-enolactone	nd	nd	ns	0.09±0.01	0.29±0.03	**
	γ-nonalactone	nd	nd	ns	0.08±0.01	0.16±0.02	**
	γ-dodecalactone	0.67±0.07	0.83±0.08	ns	0.30±0.03	0.99±0.01	**
	δ-octalactone	4.91±0.36	2.56±0.22	**	nd	nd	ns
	δ-nonalactone	nd	nd	ns	0.65±0.06	0.73±0.07	ns
	δ-decalactone	14.54±1.03	16.26±1.44	ns	2.33±0.19	5.53±0.37	**
	δ-dodecalactone	2.37±0.19	2.72±0.25	ns	0.51±0.05	1.58±0.14	**
	δ-tetralactone	0.19±0.02	0.21±0.02	ns	0.04±0.00	0.15±0.01	**
Aldehydes	hexanal	33.86±2.87	27.20±2.24	*	nd	nd	ns
	heptanal	2.78±0.24	3.17±0.26	ns	0.55±0.06	0.63±0.06	ns
	octanal	0.59±0.06	0.72±0.07	ns	0.12±0.01	0.14±0.01	ns
	nonanal	2.22±0.18	3.71±0.31	**	0.44±0.04	0.74±0.07	**
	decanal	0.54±0.05	1.12±0.10	**	0.11±0.01	0.22±0.02	**
Alcohols	1-hexanol	2.74±0.23	2.54±0.21	ns	0.67±0.07	3.49±0.24	**
	1-octanl	0.90±0.09	0.96±0.09	ns	nd	nd	ns

VOCs, volatile compounds; ns, not significant; nd, not detectable.

¹⁾CG, control group; ZG, zinc group.

^*p<0.05;

^**p<0.01.