## Appendix A  
Table A1. Identification of constituents (>0.1%) present in the volatile fractions by SDE of the raw milk and suero costeno samples from eight locations of Cordoba (Colombia). Table A2. Identification of constituents (>0.1%) present in the volatile fractions by HS-SPME of the raw milk and suero costeno samples from eight locations of Cordoba (Colombia). \begin{table}
\begin{tabular}{c c c c c c c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Peak**} & \multirow{2}{*}{**Constituents**} & \multirow{2}{*}{**R\({}_{\text{total}}\)**} & \multirow{2}{*}{**R\({}_{\text{init}}\)**} & \multicolumn{6}{c}{**Raw Milk \({}^{\ddagger}\)**} & \multicolumn{6}{c}{**Suero Costenko \({}^{\ddagger}\)**} \\ \cline{3-14}  & & & & **L1** & **L3** & **L4** & **L7** & \({}^{\ddagger}\)** & **L1** & \({}^{\ddagger}\)** & **L2** & \({}^{\ddagger}\)** & **L3** & \({}^{\ddagger}\)** & **L4** & \({}^{\ddagger}\)** & **L5** & \({}^{\ddagger}\)** & **L6** & \({}^{\ddagger}\)** & **L7** & \({}^{\ddagger}\)** & **L8** \\ \hline
1 & 3-Furammethanol & 843 & 835 & --- & --- & --- & --- & --- & --- & 0.1 & --- & --- & --- & --- & --- \\ \hline
2 & Isovaleric acid—C50 & 849 & 851 & --- & 0.9 & --- & --- & 0.4 & 0.2 & 0.09 & 0.1 & 0.2 & 4.2 & 0.08 & 0.3 \\ \hline
3 & 2-Furammethanol & 852 & 849 & --- & --- & --- & --- & --- & --- & 0.1 & --- & --- & --- & --- & 0.04 \\ \hline
4 & 2-Methylbutanoic acid—C50 & 860 & 861 & --- & 0.6 & --- & --- & 0.5 & 0.4 & --- & 0.4 & 0.6 & 0.4 & 0.4 \\ \hline
5 & Xilene \({}^{\ddagger}\) & 869 & 865 & --- & --- & --- & --- & --- & --- & 0.1 & --- & --- & --- & --- & --- \\ \hline
6 & 5-Methyl-2-hexanone & 870 & 865 & 0.4 & 0.6 & --- & 0.2 & 0.2 & 0.2 & 0.1 & 0.5 & 0.2 & 1.5 & 0.2 & 0.6 \\ \hline
7 & Valeric acid \({}^{\dagger}\)—C50 & 870 & 880 & --- & 0.5 & --- & --- & 0.3 & 0.3 & 0.2 & --- & 0.5 & 0.8 & 0.3 & 0.6 \\ \hline
8 & 2-Heptanone & 877 & 880 & 0.4 & 0.6 & --- & 0.2 & 0.6 & 0.1 & 0.1 & 1.1 & 0.2 & 1.8 & 0.3 & 1.2 \\ \hline
9 & Surfury1 ethyl ether derivative \({}^{\star}\) & 893 & --- & --- & --- & --- & --- & 0.6 & 0.2 & 0.1 & 0.6 & --- & 0.1 \\ \hline
10 & Furfuryl ethyl ether derivative \({}^{\star}\) & 893 & --- & --- & --- & --- & --- & 0.2 & 0.1 & --- & --- & --- & --- & --- \\ \hline
11 & Tricylene & 919 & 920 & --- & --- & --- & --- & --- & --- & 0.2 & 0.2 & --- & 0.08 & 0.2 \\ \hline
12 & \(\alpha\)-Pinene \({}^{\ddagger}\) & 931 & 930 & --- & --- & --- & --- & 0.03 & 0.1 & 02 & 0.06 & --- & 0.2 & 0.3 \\ \hline
13 & Fenchene & 940 & 942 & --- & --- & --- & 0.07 & trace & 0.04 & 0.1 & 0.2 & 0.1 & --- & 0.2 & 0.3 \\ \hline
14 & Camphene & 945 & 947 & --- & --- & --- & 0.2 & trace & 0.05 & 0.2 & 0.2 & 0.3 & --- & 0.2 & 0.6 \\ \hline
15 & Caprotic acid—C60 & 981 & 983 & 9.0 & 13.3 & 5.9 & 0.8 & 8.8 & 6.2 & 4.2 & 1.4 & 27.3 & 2.0 & 5.6 & 10.9 \\ \hline
16 & Ethyl caproate & 987 & 985 & --- & --- & --- & --- & 0.7 & 0.4 & 1.2 & --- & --- & 1.2 & 0.7 \\ \hline
17 & Decane \({}^{\ddagger}\) & 1000 & 1000 & --- & 0.1 & 0.07 & --- & --- & --- & 0.09 & 0.02 & --- & --- & --- \\ \hline
18 & \(p\)-Cymene & 1016 & 1015 & --- & --- & --- & --- & --- & 0.1 & --- & --- & --- & 0.3 & --- & 0.3 \\ \hline
19 & Limonene \({}^{\ddagger}\) & 1020 & 1022 & --- & 1.5 & 0.3 & 0.1 & --- & 0.1 & 0.1 & --- & 0.3 & --- & 0.4 \\ \hline
20 & 2-Glimethynonane & 1024 & 1025 & 0.3 & 1.0 & 0.4 & 0.2 & --- & 0.04 & 0.1 & 0.3 & --- & 0.1 & --- \\ \hline
21 & \(m\)-Tolualdehyde & 1053 & 1056 & 0.6 & --- & --- & --- & 0.05 & 0.1 & 0.07 & --- & 0.4 & 0.1 & 0.1 \\ \hline
22 & 2-Methyl-decane & 1064 & 1065 & 1.4 & 1.6 & 1.2 & 0.6 & --- & 0.1 & 0.2 & 0.6 & 0.09 & --- & 0.4 & 0.08 \\ \hline
23 & 4-Methylbleanoic acid & 1065 & --- & --- & --- & --- & --- & --- & --- & --- & 0.1 & --- & --- & --- \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Identification of constituents (0-0.1%) present in the volatile fractions by SDE of the raw milk and suero costenko samples from eight locations of Cordoba (Colombia).