# Internet of Food (IoF), Tailor-Made Metal Oxide Gas Sensors to Support Tea Supply Chain
## Appendix A
\begin{table}
\begin{tabular}{c c} \hline
**RT** & **Compound Name** & **Abundance Mean** \\ \hline
0.730 & Acetic acid, cyano- & 94,784 \\
0.815 & Propane & 115,993 \\
0.881 & N-(2-Methylacryloyl)imidazol & 114,248 \\
1.040 & Allyl acetate & 49,897 \\
1.081 & 2-Hexanone, 4-hydroxy-5-methyl-3-propyl- & 221,553 \\
1.425 & Pentan-2-ol, 1-tert-butylamino-4-methyl- & 37,600 \\
1.438 & Butanal, 2-methyl- & 100,607 \\
1.490 & Butanal, 3-methyl- & 84,716 \\
1.947 & 3-Aminopyrrolidine & 207,498 \\
1.951 & 1,3-Dioxane-4,6-dione, 2,2-dimethyl- & 225,463 \\
2.030 & Acetamide, N-[-2-(4-methylphenoxy)ethyl]- & 65,728 \\
2.045 & Azcyclodecan-5-ol & 45,434 \\
3.284 & Hexanal & 1,398,458.5 \\
3.655 & Triallyl phosphate & 23,541 \\
5.575 & Acetonitrile, brono- & 26,297 \\
5.675 & Propane, 2-(ethenyloxy)- & 24,723 \\
5.730 & 2,3-Anhydro-d-galactacosan & 30,652 \\
5.740 & Heptanal & 147,257 \\
5.765 & Butanal, 3-methyl- & 149,962 \\
5.953 & Tetrahydropyrrol[1,2-a]azetidin-2-one & 193,616 \\
5.957 & Mutexide & 90,456 \\
6.030 & 5-[2-Thienylhydantoin & 77,334 \\
6.702 & 2-Hexanal & 676,577 \\
6.985 & N-(Trifluoroacetyl)-N,O,O,O”-tetrakis(trimethylsilyl)norepinephrinephrine & 706,731 \\
8.505 & Dodecane, 4-methyl- & 90,410 \\
9.655 & Octanal & 66,979 \\
9.658 & 1,6-Anhydro-3,4-dideoxy-beta.-D-manno-hexapyranose & 54,785 \\
11.959 & 5-Hepten-2-one, 6-methyl- & 262,786 \\
14.740 & Nonanal & 373,934.5 \\
15.147 & Ethanol, 2-butoxy- & 138,163 \\
15.165 & 2,5-Dimethyl-1-hepten-4-ol & 121,419 \\
18.282 & Ammonium acetate & 2,141,214 \\
18.701 & Furfural & 1,136,801 \\
19.103 & Nonane, 5-(2-methylpropyl)- & 246,297 \\
20.714 & 1-Hexanol, 2-ethyl- & 75,528 \\
21.122 & Benzaldehyde & 4,085,838.5 \\
21.846 & Undecane, 3,7-dimethyl- & 316,312 \\
22.135 & Cycloheptano[d]imidazolidine, 1,3-dihydroxy-2-methyl- & 103,470 \\
23.290 & Propanoic acid & 200,796.5 \\
24.141 & 5-Hepten-1-ol, 2-ethenyl-6-methyl- & 197,773 \\
24.456 & 1H-Pyrazole, 1,3,5-trimethyl- & 783,099 \\
24.467 & 2-Furancarboxaldehyde, 5-methyl- & 686,396 \\
26.644 & Benzenemethanol, alpha.-(1-ethenylpentyl)-alpha.-methyl- & 96,576 \\
27.076 & Undecane, 2-methyl- & 255,153 \\
27.700 & Benzaldehyde, 2-methyl- & 129,230.5 \\
28.036 & Acetophenone & 69,030 \\
30.240 & Pent-3-en-2-one, 4-methyl-, oxime & 127,754 \\
30.255 & 4-Methoxy-2,3-dimethyl-2,3-dihydroazetere & 103,964 \\
30.487 & 2(3H)-Furanone, 5-ethyldihydro- & 554,528.5 \\
32.606 & 2,3-Dimethyldodecane & 55,910 \\
32.606 & Tetradecane, 2-methyl- & 71,677 \\
33.011 & Propanoic acid, 3-hydroxy-2-[-[[benzyloxy)carbonyl]amino]acetyl]amino & 43,642 \\
34.024 & Pentanoic acid & 72,953.5 \\
34.312 & Methyl salicylate & 34,235 \\
35.313 & 2(3H)-Furanone, dihydro-5-propyl- & 3,103,701.5 \\
36.641 & 1-Octadecanesulphonyl chloride & 85,226.5 \\ \hline \end{tabular}
\end{table} 
Table 5: Results for the TBV sample fingerprint determination with indication of the retention time (RT) and abundance mean for every identified compound. \begin{table}
\begin{tabular}{c c c} \hline
**RT** & **Compound Name** & **Abundance Mean** \\ \hline
0.189 & Carbamic acid, (cyanoacetyl)-, ethyl ester & 40,219 \\
0.690 & Acetic acid, cyano- & 71,328 \\
0.859 & 4-Heptanone, dimethylhydrazzone & 68,187 \\
0.931 & 1-(4-Acetamidoanilino)-3,7-dimethylbenzo[4,5]imidazo[1,2-a]pyridine-4-carbonitrile & 42,303 \\
0.980 & Sulfide, methyl 1-methyl-2-butenyl & 44,455 \\
1.390 & 4H,8H-[1,2,4]Triazin[3,4-b][1,3,4]thiazol-4-one,7-amino-3-methyl- & 48,156 \\
1.430 & Butanal, 3-methyl- & 54,247 \\
1.504 & Acetic acid, cyano- & 24,296 \\
1.547 & 4-Pententen-2-ol, 4-methyl- & 36,478 \\
1.719 & 2-Butyne-1,4-diol bis(beta.-hydroxyethyl ether) & 29,900 \\
2.525 & 3-Hexenoic acid, ethyl ester, (Z)- & 21,487 \\
2.599 & dl-Ormithine & 27,137 \\ \hline \end{tabular}
\end{table} 
Table 6: Results for the EBP sample fingerprint determination with indication of the retention time (RT) and abundance mean for every identified compound.