# Variation in Volatile Flavor Compounds of Cooked Mutton Meathalls during Storage
## 3 Results
### Comparison of SPME and SAFE Extraction Methods
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline \multicolumn{1}{c}{No} & \multicolumn{1}{c}{**RI**} & \multicolumn{1}{c}{**CAS No**} & \multicolumn{1}{c}{**Compounds**} & \multicolumn{1}{c}{**Perception**} & \multicolumn{1}{c}{**Identification**} & \multicolumn{3}{c}{**Relative Content (ug/kg)**} & \\ \cline{4-11}  & & & & & & & **Method** & **0 d** & **30 d** & **60 d** & **90 d** \\ \hline
1 & 1392  
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{2}{*}{**N0**} & \multirow{2}{*}{**RI**} & \multirow{2}{*}{**CAS No**} & \multirow{2}{*}{**Compounds**} & \multirow{2}{*}{**Perception**} & \multicolumn{2}{c}{**Identification**} & \multicolumn{2}{c}{**Relative Content (ng/kg)**} \\ \cline{6-9}  & & & & & **Method** & **0 d** & **30 d** & **60 d** & **90 d** \\ \hline \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\  & & & & & & & & & \\ \hline \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\
23 & 1141 & 123-35-3 & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\  & & & & & & & & \\ \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\
24 & 1158 & 98-96-5 & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\
25 & 1188 & 958-10-2 & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\
26 & 1214 & 3779-61-1 & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\  & & & & & & & & & \\ \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\
27 & 1223 & 3338-85 & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\  & & & & & & & & & \\ \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\
28 & 1244 & 100-42-5 & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\  & & & & & & & & & & \\ \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\  & & & & & & & & & & \\ \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{9}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\
29 & 1418 & 18368-95-1 & \multicolumn{1}{c}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} \\  & & & & & & & & & & & \\ \multicolumn{9}{c}{}{} & \multicolumn{9}{c}{}{} & \multicolumn{9}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{} \\
30 & 1428 & 1195-32-0 & \multicolumn{1}{c}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\
31 & 1540 & 13744-15-5 &  
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline \multirow{2}{*}{**N\({}^{\text{o}}\)**} & \multirow{2}{*}{**RI**} & \multirow{2}{*}{**CAS No**} & \multirow{2}{*}{**Compounds**} & \multirow{2}{*}{**Perception**} & \multirow{2}{*}{**Identification**} & \multicolumn{4}{c}{**Relative Content (ng/kg)**} \\ \cline{5-10}  & & & & & & **Method** & **0 d** & **30 d** & **60 d** & **90 d** \\ \hline
49 & 13  
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline
**No** & **RI** & **CAS No** & **Compounds** & **Perception** & **Identification** & \multicolumn{3}{c}{**Relative Content (ug/g)**} \\ \cline{6-9}  & & & & & & **0 d** & **30 d** & **60 d** & **90 d** \\ \hline
1 & 1462 & 3391-86-4 & 1-Octen-3 ol & mushroom & MS/RI & ND\({}^{\rm\,b}\) & ND\({}^{\rm\,b}\) & \(0.37\pm 0.16^{\rm\,a}\) & ND\({}^{\rm\,b}\) \\
2 & 1554 & 89-79-2 & Isoquelogol & minity, cooling & MS/RI & ND\({}^{\rm\,c}\) & \(0.24\pm 0.09^{\rm\,b}\) & \(0.07\pm 0.02^{\rm\,a}\) & \(0.33\pm 0.13^{\rm\,b}\) \\
3 & 1559 & 78-70-6 & Linalool & citrus floral, rose & MS/RI/O/ & \(0.40\pm 0.02^{\rm\,a}\) & \(1.52\pm 0.19^{\rm\,b}\) & \(1.22\pm 0.31^{\rm\,a}\) & \(3.81\pm 0.28^{\rm\,c}\) \\
4 & 1629 & 562-74-3 & Terpine-t-cl & pepper, woody, earth, & MS/RI & \(3.13\pm 0.12^{\rm\,a}\) & \(2.53\pm 0.40^{\rm\,b}\) & \(8.93\pm 19.7^{\rm\,c}\) & \(15.11\pm 1.19^{\rm\,d}\) \\
5 & 1721 & 98-55-5 & p-menth-1-en-8 & col & citrus & MS/RI/O/ & \(0.33\pm 0.02^{\rm\,a}\) & \(1.61\pm 0.38^{\rm\,b}\) & \(1.61\pm 0.38^{\rm\,b}\) & \(13.26\pm 0.39^{\rm\,c}\) \\
6 & 1729 & 507-70-7 & ((IS)-endo-(r)-bound) & camphor & MS/RI/O/ & \(0.10\pm 0.06^{\rm\,a}\) & \(3.54\pm 0.46^{\rm\,b}\) & \(0.55\pm 0.15^{\rm\,a}\) & \(3.32\pm 0.12^{\rm\,b}\) \\
7 & 1778 & 617-94-7 & 2-Phenyl-1-propanol & green, earthy & MS/RI/O/ & \(0.70\pm 0.06^{\rm\,a}\) & \(7.13\pm 4.24^{\rm\,a}\) & \(1.48\pm 1.05^{\rm\,b}\) & \(11.32\pm 1.26^{\rm\,a}\) \\
8 & 1864 & 106-241 & Gemanol & rose, way, citrus & MS/RI/O/ & \(0.91\pm 0.32^{\rm\,a}\) & \(1.03\pm 0.84^{\rm\,a}\) & \(0.20\pm 0.04^{\rm\,a}\) & \(1.23\pm 0.06^{\rm\,a}\) \\