## 3 Results and Discussion
### Microbial Count and Spoilage Indication  
Standard plate count (SPC) and TPC of pasteurized milk was significantly influenced, while total coliform count (TCC) was insignificantly affected by both storage period and temperature, and even their interaction (\(p\) < 0.05). At 0 day, the mean values of TCC, SPC and TPC were, respectively, (Log\({}_{10}\) CFU 0.83 \(\pm\) 0.14 mL\({}^{-1}\), 0.83 \(\pm\) 0.14 mL\({}^{-1}\) and 0.83 \(\pm\) 0.14 mL\({}^{-1}\)) at 4 \({}^{\circ}\)C; (Log\({}_{10}\) CFU 3.14 \(\pm\) 0.03 mL\({}^{-1}\), 3.14 \(\pm\) 0.03 mL\({}^{-1}\) and 3.14 \(\pm\) 0.03 mL\({}^{-1}\)) at 7 \({}^{\circ}\)C; and (Log\({}_{10}\) CFU 2.24 \(\pm\) 0.02 mL\({}^{-1}\), 2.24 \(\pm\) 0.02 mL\({}^{-1}\) and 2.24 \(\pm\) 0.02 mL\({}^{-1}\)) at 10 \({}^{\circ}\)C. \begin{table}
\begin{tabular}{l c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Volatile Compounds**} & \multicolumn{8}{c}{**Storage Days**} \\ \cline{2-11}  & **0** & **1** & **5** & **9** & **12** & **14** & **16** & **17** & **18** & **19** \\ \hline
**Acetine** & \(75.6\pm 1.13\) & \(77.4\pm 2.65\) & \(78.7\pm 1.53\) & \(82.6\pm 2.08\) & \(79.5\pm 3.01\) & \(84.9\pm 1.27\) & \(85.6\pm 2.05\) & \(87.4\pm 1.14\) & \(93.2\pm 1.07\) & \(93.3\pm 2.14\) \\
**Butanone** & \(8.06\pm 0.8\) & \(8.36\pm 0.0\) & \(8.68\pm 0.01\) & \(8.99\pm 1.04\) & \(9.99\pm 0.9\) & \(9.31\pm 1.02\) & \(9.42\pm 0.02\) & \(9.64\pm 2.06\) & \(9.86\pm 1.52\) & \(10.23\pm 2\) \\
**Ethanol** & \(0.01\pm 0.01\) & \(16.6\pm 0.1\) & \(1.07\pm 0.4\) & \(1.23\pm 0.45\) & \(1.67\pm 0.06\) & \(1.52\pm 0.52\) & \(1.54\pm 1.03\) & \(1.77\pm 1.24\) & \(1.83\pm 1.48\) & \(1.99\pm 1.1\) \\
**Pentral** & \(1.21\pm 0.04\) & \(1.33\pm 0.06\) & \(1.89\pm 0.08\) & \(2.57\pm 0.02\) & \(31.55\pm 0.54\) & \(3.94\pm 0.73\) & \(4.82\pm 0.08\) & \(5.40\pm 0.65\) & \(6.15\pm 1.08\) & \(7.83\pm 1.14\) \\
**1-butanol** & \(0.02\pm 0.0\) & \(0.01\pm 0.0\) & \(0.01\pm 0.0\) & \(0.02\pm 0.03\) & \(0.03\pm 0.02\) & \(0.02\pm 0.0\) & \(0.03\pm 0.02\) & \(0.07\pm 0.01\) & \(0.13\pm 0.01\) & \(0.41\pm 0.02\) \\
**3-Methyl-Butanol** & ND & ND & ND & ND & ND & ND & ND & \(0.02\pm 0.01\) & \(0.09\pm 0.01\) \\
**Heppanal** & \(0.01\pm 0.0\) & \(0.02\pm 0.02\) & \(0.03\pm 0.01\) & \(0.07\pm 0.04\) & \(0.06\pm 0.02\) & \(0.13\pm 0.05\) & \(0.27\pm 0.10\) & \(0.45\pm 0.13\) & \(0.957\pm 0.0\) \\
**2-Mutanediol** & ND & ND & ND & ND & ND & ND & ND & ND & \(0.06\pm 0.0\) & \(0.07\pm 0.0\) \\
**1-Hexanol** & ND & ND & ND & ND & ND & ND & ND & ND & \(0.02\pm 0.0\) & \(0.002\pm 0.0\) \\
**2-Ethanol** & ND & ND & ND & ND & ND & ND & ND & ND & \(0.002\pm 0.0\) & \(0.003\pm 0.0\) \\
**1-Pentanol** & ND & ND & ND & ND & ND & ND & ND & \(0.59\pm 0.13\) & \(0.84\pm 0.2\) & \(0.95\pm 0.01\) \\
**Hexanone** & ND & ND & ND & ND & ND & ND & ND & \(0.065\pm 0.0\) & \(0.077\pm 0.0\) & \(0.088\pm 0.0\) \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Means values and standard deviation of volatile compounds (\(\rm{g}/{\rm L}\)) of pasteurized milk stored at 4 °C. \begin{table}
\begin{tabular}{l c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Volatile Compounds**} & \multicolumn{8}{c}{**Storage Days**} \\ \cline{2-11}  & **0** & **1** & **5** & **9** & **12** & **14** & **16** & **17** & **18** & **19** \\ \hline
**Acetine** & ND & ND & ND & ND & ND & ND & ND & \(4.53\pm 0.64\) & \(834\pm 0.16\) & \(13.07\pm 0.07\) \\
**Acetine** & \(72.3\pm 1.12\) & \(74.3\pm 1.05\) & \(76.8\pm 2.03