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

Table 4

Relative percentages of volatile compounds of interest in the headspace of the chicken noodle soup sample packaged in metal cans.

Compounds	Soup					Coating
	Day 0	Day 20	Day 25	Day 30	Day 35	Day 20	Day 25	Day 30	Day 35
Sulfur
Hydrogen sulfide	0.63964 ± 0.301	0.03332 ± 0.013	0.04461 ± 0.016	0.04881 ± 0.025	0.12810 ± 0.026	0.00000	0.00000	0.00000	0.00000
Dimethyl sulfide	95.92298 ± 7.9326	97.74751 ± 5.087	98.37237 ± 10.951	98.12923 ± 13.440	96.53006 ± 9.734	62.50000 ± 8.945	56.80120 ± 0.766	64.42742+6.777	72.99125 ± 1.173
Methyl mercaptan	1.38542 ± 0.386	0.00208 ± 0.0	0.01371 ± 0.009	0.01836 ± 0.007	0.06934 ± 0.043	4.56647 ± 1.604	9.28625 ± 0.785	5.55883 ± 2.082	3.83850 ± 1.114
Propyl mercaptan	0.41307 ± 0.123	0.31977 ± 0.0	0.12318 ± 0.064	0.18966 ± 0.041	0.45311 ± 0.079	3.22254 ± 0.014	7.10015 ± 0.019	4.61599 ± 0.020	4.67383 ± 0.020
Methional	1.34315 ± 0.445	1.35907 ± 0.0	1.05745 ± 0.095	1.33713 ± 0.271	2.39046 ± 0.740	5.99711 ± 1.040	6.03513 ± 1.485	4.61599	6.14558
Dimethyl trisulfide	0.27866 ± 0.092	0.52424 ± 0.054	0.37824 ± 0.105	0.26705 ± 0.053	0.40635 ± 0.114	23.59827 ± 2.298	20.77728 ± 5.624	20.78177 ± 1.827	12.29117 ± 3.262
2-Isobutylthiazole	0.01708 ± 0.011	0.01401 ± 0.005	0.01045 ± 0.003	0.00976 ± 0.053	0.02258 ± 0.009	0.11561 ± 0.072	0.00000	0.00000	0.05967 ± 0.040
Acid
Acetic acid	2.5088 ± 0.676	7.7631 ± 0.342	4.5618 ± 1.005	11.5821 ± 4.013	5.8529 ± 0.531	36.6343 ± 16.068	35.5883+14.484	19.6629 ± 3.820	13.9519 ± 2.069
Propionic acid	13.7026 ± 5.620	47.9120 ± 3.378	44.9045 ± 4.831	50.0424 ± 9.343	51.8469 ± 8.470	27.8294 ± 13.746	26.5973+5.435	49.4382 ± 12.416	55.2069 ± 16.756
Butyric acid	54.5173 ± 16.678	17.9939 ± 8.506	32.3091 ± 5.486	24.2675 ± 5.876	24.9993 ± 0.904	10.6630 ± 5.659	11.3617+5.840	5.5056 ± 3.483	6.5421 ± 0.601
Isovaleric acid	28.3536 ± 11.478	23.2917 ± 7.657	14.3447 ± 3.503	11.7923 ± 2.348	15.5468 ± 5.062	14.0836 ± 3.354	13.0963+3.354	15.9551 ± 1.112	11.2150 ± 4.606
2-Methylbutyric acid	0.9178 ± 0.118	3.0393 ± 0.801	3.8800 ± 0.982	2.3156 ± 0.537	1.7541 ± 0.432	10.7897 ± 4.857	13.3565+4.857	9.4382 ± 5.899	13.0841 ± 8.278