Identification of Corrosive Volatile Compounds Found in the Headspace of Chicken Noodle Soup Retorted in Metal Cans

Table 3

Relative percentages of volatile compounds of interest in the headspace of the chicken noodle soup sample packaged in glass jars (control).

Compounds	Day 0	Day 20	Day 25	Day 30	Day 35
Sulfur
Hydrogen sulfide	0.6396 ± 0.1599	0.0362 ± 0.0031	0.0309 ± 0.0231	0.0471 ± 0.0139	0.0627 ± 0.0108
Dimethyl sulfide	95.9230 ± 7.9261	97.7833 ± 4.3666	97.4147 ± 7.8457	96.9527 ± 9.7869	97.1554 ± 9.4590
Methyl mercaptan	1.3854 ± 0.3864	0.0030 ± 0.0021	0.0380 ± 0.0139	0.0444 ± 0.0165	0.1048 ± 0.0212
Propyl mercaptan	0.4131 ± 0.1228	0.3257 ± .0905	0.3776 ± 0.0855	0.4247 ± 0.0826	0.3975 ± 0.0881
Methional	1.3431 ± 0.4445	1.4026 ± 0.2209	1.7730 ± 0.3649	2.1043 ± 0.5908	1.7852 ± .6061
Dimethyl trisulfide	0.2787 ± 0.0923	0.4269 ± 0.0449	0.3527 ± 0.0816	0.4010 ± 0.0760	0.4685 ± 0.0905
2-Isobutylthiazole	0.0171 ± 0.0106	0.0224 ± 0.0026	0.0131 ± 0.0062	0.0258 ± 0.0097	0.0258 ± 0.0085
Acid
Acetic acid	2.50879 ± 0.6760	3.68494 ± 0.7097	2.99828 ± 0.5800	5.38308 ± 1.0911	12.01428 ± 5.1678
Propionic acid	13.70257 ± 5.6199	18.48934 ± 2.451	28.44945 ± 5.7305	28.27723 ± 7.6008	24.49685 ± 7.7459
Butyric acid	54.51725 ± 16.677	50.97640 ± 10.485	43.38789 ± 9.5930	39.37725 ± 1.0658	40.96370 ± 12.8063
Isovaleric acid	28.35359 ± 11.478	25.92176 ± 6.9173	24.11544 ± 6.0728	25.88972 ± 8.1664	21.20475 ± 6.2528
2-Methylbutyric acid	0.91781 ± 0.5654	0.92756 ± 0.2038	1.04895 ± 0.2700	1.07272 ± 0.2822	1.32042 ± 0.3838