Table 4 Volatile compounds detected in the dried pork loin (percentage of the total peak area) cured with PTW brine and the untreated brine.

Alcohols

3-methyl-Butanol

\

3.64 ± 0.11^a

2.05 ± 0.07^b

1.05 ± 0.06^c

1-Hexanol

\

2.35 ± 0.11^a

2.58 ± 0.05^a

2.61 ± 0.07^a

1-Heptanol

\

3.26 ± 0.21^a

1.21 ± 0.05^b

0.93 ± 0.03^c

1-Octen-3-ol

7.58 ± 0.42^a

6.26 ± 0.15^b

5.46 ± 0.31^c

3.60 ± 0.05^d

1-Pentanol

5.18 ± 0.35^a

\

\

0.91 ± 0.05^b

Aldehydes

Nonanal

9.13 ± 0.35^a

6.81 ± 0.31^b

5.03 ± 0.24^c

5.55 ± 0.15^c

Hexanal

\

2.08 ± 0.05^c

5.58 ± 0.45^a

3.51 ± 0.21^b

Heptanal

0.91 ± 0.03^a

0.99 ± 0.03^a

0.87 ± 0.05^b

0.76 ± 0.03^c

Decanal

0.20 ± 0.02^b

0.39 ± 0.05^a

\

\

3-methy-Butanal

3.82 ± 0.25^c

2.94 ± 0.75^d

4.85 ± 0.72^b

6.17 ± 0.86^a

Benzaldehyde

3.19 ± 0.75^a

2.19 ± 0.15^b

1.60 ± 0.25^c

1.57 ± 0.21^c

(Z)-2-Heptenal

\

1.55 ± 0.15^a

0.76 ± 0.05^b

0.48 ± 0.02^c

(E)-2-Octenal

\

1.49 ± 0.23^a

0.78 ± 0.03^b

0.54 ± 0.11^c

3-hydroxy-Butanal

3.63 ± 0.18

\

\

\

Benzeneacetaldehyde

\

0.59 ± 0.05^b

0.91 ± 0.03^a

0.42 ± 0.02^c

Ketones

2,3-Octanedione

\

9.65 ± 0.78^a

6.20 ± 0.45^c

8.01 ± 0.65^b

2,3-hydroxy-Butanone

\

7.98 ± 1.05^a

6.83 ± 0.72^b

8.15 ± 0.55^a

2-Heptanone

5.09 ± 0.25^b

\

1.99 ± 0.07^a

\

2-Nonanone

3.54 ± 0.28

\

\

\

2,3,3-trimethyl-Cyclobutanone

4.07 ± 0.55

\

\

\

3-Octen-2-one

2.76 ± 0.16^a

0.64 ± 0.03^b

0.62 ± 0.04^b

\

Esters

Oxalic acid, isobutyl nonyl ester

\

0.58 ± 0.05^a

0.34 ± 0.05^b

0.28 ± 0.03^b

Oxalic acid, bis(2-ethylhexyl) ester

2.53 ± 0.05^a

0.60 ± 0.02^d

1.42 ± 0.15^b

0.90 ± 0.07^c

Oxalic acid, 2-ethylhexyl isohexyl ester

1.24 ± 0.21^a

0.33 ± 0.03^c

0.65 ± 0.04^b

0.34 ± 0.05^c

n-Butyric acid, 2-ethylhexyl ester

1.25 ± 0.15^a

0.31 ± 0.03^c

0.46 ± 0.02^b

0.56 ± 0.04^b

Sulfurous acid, butyl decyl ester

\

\

\

0.54 ± 0.02

Acids

3-methyl-Butanoic acid

3.53 ± 0.45^a

2.42 ± 0.27^b

0.87 ± 0.04^d

1.66 ± 0.12^c

Hydrocarbons

D-limonene

1.71 ± 0.54^a

0.60 ± 0.07^b

0.54 ± 0.09^b

0.43 ± 0.08^bc

p-xylene

1.86 ± 0.07^a

0.21 ± 0.02^c

0.23 ± 0.04^c

0.39 ± 0.07^b

o-xylene

1.51 ± 0.07^a

0.45 ± 0.04^b

0.29 ± 0.01^c

0.18 ± 0.03^c

1,2,4-trimethyl-Benzene

2.52 ± 0.21^a

1.16 ± 0.04^b

1.15 ± 0.09^b

1.04 ± 0.11^b

2-pentyl-Furan

8.63 ± 0.65

\

\

\

2,6-dimethyl-Pyrazine

1.90 ± 0.02^a

1.10 ± 0.07^b

1.66 ± 0.25^a

0.84 ± 0.05^c

Tetramethyl-Pyrazine

1.88 ± 0.55^b

2.11 ± 0.15^b

3.81 ± 0.41^a

4.07 ± 0.34^a

2,4,4-Trimethyl-1-hexene

\

\

\

0.54 ± 0.02

Pentane, 2,3,3-trimethyl-

\

3.15 ± 0.22

\

\

Hexane, 3-ethyl-4-methyl-

\

0.57 ± 0.02^b

0.66 ± 0.03^b

2.77 ± 0.21^a

Heptane, 2,2,4,6,6-pentamethyl-

\

12.26 ± 0.72^c

16.34 ± 0.55^b

17.34 ± 0.85^a

Heptane, 2,4-dimethyl-

\

\

2.54 ± 0.24^a

2.68 ± 0.37^a

Octane

13.75 ± 0.95

\

\

\

Octane, 3,5-dimethyl-

\

1.63 ± 0.21^c

2.76 ± 0.31^a

2.40 ± 0.26^b

Octane, 4,5-dipropyl-

\

\

\

0.63 ± 0.29

Nonane, 4,5-dimethyl-

\

0.38 ± 0.05^b

\

1.80 ± 0.21^a

Decane

\

\

\

2.83 ± 0.75

Decane, 3,8-dimethyl-

\

6.73 ± 1.25^a

2.37 ± 0.11^c

3.46 ± 0.22^b

Decane, 2,5,6-trimethyl-

\

\

\

1.04 ± 0.23

Undecane, 3,6-methyl-

\

5.68 ± 0.35^b

9.07 ± 0.82^a

1.72 ± 0.23^c

Undecane

\

\

1.84 ± 0.12^a

1.14 ± 0.20^b

Dodecane

2.49 ± 0.25^a

1.41 ± 0.04^b

1.58 ± 0.05^b

2.59 ± 0.34^a

Dodecane, 2,6,10-trimethyl-

\

1.01 ± 0.05^a

0.63 ± 0.01^b

1.20 ± 0.02^a

Tridecane

2.82 ± 0.21^a

1.68 ± 0.05^b

1.47 ± 0.04^b

0.65 ± 0.03^c

1H-Indole, 5-methyl-2-phenyl-

\

1.49 ± 0.09^a

\

0.24 ± 0.02^b

2-Ethyl-acridine

3.21 ± 0.64

\

\

\

Butane, 1-methoxy-3-methyl-

\

1.42 ± 0.06^b

1.14 ± 0.06^c

2.23 ± 0.14^a