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

Table 10

Relative percentages of volatile compounds of interest in the headspace of the cysteine group.

Compounds	Soup					Coating
	Day 0	Day 5	Day 8	Day 11	Day 14	Day 5	Day 8	Day 11	Day 14
Sulfur
Hydrogen sulfide	18.7633 ± 3.966	26.1371 ± 2.120	13.8014 ± 0.385	11.9221 ± 1.799	13.4230 ± 1.565	0.0902 ± 0.0	0.0000	0.0000	0.0000
Dimethyl sulfide	78.7910 ± 4.921	69.1739 ± 4.541	83.0937 ± 2.474	84.6080 ± 4.094	83.3511 ± 11.527	38.3857 ± 2.980	43.6898 ± 1.896	45.0700 ± 2.823	61.6165 ± 5.259
Methyl mercaptan	1.5676 ± 0.086	3.3727 ± 0.258	2.0561 ± 0.0	1.9997 ± 0.263	1.5502 ± 0.0	0.0000	0.0000	0.0000	0.0000
Propyl mercaptan	0.1523 ± 0.027	0.2947 ± 0.002	0.2390 ± 0.040	0.3001 ± 0.035	0.2290 ± 0.070	5.1336 ± 1.591	8.7876 ± 1.659	12.9011 ± 1.558	6.5414 ± 1.909
Methional	0.4970 ± 0.127	0.5671 ± 0.026	0.5720 ± 0.016	0.7796 ± 0.034	0.7193 ± 0.240	2.6835 ± 0.817	5.1970 ± 0.207	7.4474 ± 1.248	4.5929 ± 2.068
Dimethyl trisulfide	0.2161 ± 0.049	0.4458 ± 0.002	0.2321 ± 0.038	0.3822 ± 0.029	0.7186 ± 0.461	53.4949 ± 6.756	41.8709 ± 3.443	34.3386 ± 3.82	26.5633 ± 1.978
2-Isobutylthiazole	0.0126 ± 0.004	0.0087 ± 0.003	0.0058 ± 0.002	0.0083 ± 0.002	0.0087 ± 0.021	0.2121 ± 0.191	0.4547 ± 0.201	0.2429 ± 0.243	0.6860 ± 0.457
Acid
Acetic acid	1.8988 ± 0.444	5.7033 ± 0.016	5.1748 ± 0.255	3.7842 ± 0.433	3.8064 ± 1.691	6.1574 ± 3.863	32.4146 ± 14.962	35.8380 ± 26.113	8.0670 ± 5.243
Propionic acid	7.1226 ± 1.391	27.7457 ± 2.261	20.0361 ± 1.767	29.3895 ± 1.610	30.1402 ± 17.433	55.7725 ± 6.072	38.5471 ± 4.508	41.5713 ± 7.905	58.3968 ± 12.261
Butyric acid	72.7024 ± 12.059	26.3920 ± 4.217	47.1877 ± 19.270	35.8582 ± 3.090	38.3897 ± 3.345	8.1956 ± 0.741	4.0752 ± 1.664	3.0134 ± 2.240	8.1515 ± 2.486
Isovaleric acid	17.3739 ± 3.627	16.8975 ± 2.276	15.3075 ± 2.311	15.8883 ± 3.535	15.3507 ± 4.572	16.6904 ± 4.076	15.8874 ± 3.081	13.1885 ± 12.083	15.1869 ± 0.592
2-Methylbutyric acid	0.9023 ± 0.275	23.2615 ± 3.254	12.2938 ± 1.830	15.0798 ± 2.032	12.3130 ± 4.666	13.1842 ± 0.855	9.0757 ± 0.315	6.3888 ± 2.182	10.1979 ± 7.543