## 3 Results
### Aroma-Active Compounds (AAC) in Peach-like Black Tea Samples Identified by GC-O
The capital letters and arcs divide the affiliation of the compounds. \begin{table}
\begin{tabular}{l l c c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Compounds**} & \multirow{2}{*}{**Aroma Character**} & \multicolumn{6}{c}{**Aroma Intensity**} & \multicolumn{2}{c}{**OT**} & \multicolumn{2}{c}{**OAV**} & \multicolumn{2}{c}{**ACI (\%)**} \\ \cline{3-14}  & & **JRT2** & **JRT3** & **JRT6** & **JRT5** & **JRT2** & **JRT3** & **JRT6** & **JRT5** & **JRT6** & **JRT7** & **JRT3** & **JRT6** & **JRT5** \\ \hline Alloccime 4E,6Z- & Orange, floral & 3 & 3 & 2 & 2 & NF & - & - & - & - & - & - & - & - \\ Hexenol, 3Z- & Green app-like & 4 & 3 & 2 & 4 & 70\({}^{\circ}\) & 0.123 & 0.167 & 0.121 & 0.221 & 0.46 & 1.47 & 0.53 & 1.07 \\ Hexenol, 2E- & Passon fruit-like & 4 & 2 & 4 & 3 & 20\({}^{\circ}\) & 0.077 & 0.159 & 0.172 & 0.158 & 0.29 & 1.39 & 0.76 & 0.76 \\ Hexenol, 2E- & Green app-like & - & 3 & - & 3 & 100\({}^{\circ}\) & - & 0.013 & - & 0.005 & - & 0.12 & - & 0.25 \\ Inalcoolode & Rose-like & 4 & - & 2 & 2 & 190\({}^{\circ}\) & 0.163 & - & 0.223 & 2.409 & 0.62 & 0.30 & 0.98 & 11.67 \\ Hepidanal, 2E- & Fruity & 4 & 4 & 2 & 3 & NF & - & - & - & - & - & - & - & - \\ Ostadine-2-, 2E,3E- & Watermeon-like & 3 & 4 & 3 & 3 & 3 & NF & - & - & - & - & - & - & - \\ Linabol & Foral, orange-like & 4 & 3 & 3 & 3 & 6\({}^{\circ}\) & 15.595 & 4.348 & 14.011 & 8.833 & 9.13 & 8.292 & 61.5 & 42.75 \\ Ostadine-2-one, 3E,5E- & Fruity & 3 & 3 & 3 & 3 & 3 & NF & - & - & - & - & - & - & - \\ Hottenen & Florai & 3 & 4 & 2 & 3 & 110\({}^{\circ}\) & 0.755 & 0.038 & 0.855 & 0.782 & 2.86 & 0.03 & 3.54 & 3.79 \\ Phenylacetaldehyde & Florai, hvactin-like & 4 & 3 & 4 & 3 & 4 & 18.893 & 3.912 & 2.066 & 1.344 & 0.29 & 34.45 & 0.08 & 6.51 \\ Y-Captolactone & Peak-like & 3 & 3 & 3 & 3 & 50\({}^{\circ}\) & 0.071 & 0.031 & 0.114 & 0.101 & 0.27 & 0.27 & 0.50 & 0.49 \\ \(\beta\)-Damascomo & Rose-like & - & - & - & - & 3 & NF & - & - & - & - & - & - & - \\ Phenylethyl isobutyrate & Florai, rose-like & - & 2 & 2 & 3 & NF & - & - & - & - & - & - & - \\ \(2\)-Phenylly alcohol & Florai, fruitty & 2 & - & 1 & 2 & 390\({}^{\circ}\) & 0.365 & - & 0.283 & 0.195 & 1.38 & - & 1.05 & 0.94 \\ Benzyl cyanide & Coocorult-like, woody & 3 & 3 & - & 4 & 4 & NF & - & - & - & - & - & - & - \\ \(8\)-Ctalactone & Peach-like,ccamy & 3 & 2 & 3 & 4 & 400\({}^{\circ}\) & 0.008 & 0.006 & 0.002 & 0.001 & 0.03 & 0.05 & 0.01 & 0.49 \\ Methylmethoxybenzoate & Rose-like & - & - & - & 3 & NF & - & - & - & - & - & - & - & - & - \\ Y-Decalactone & Peach-like & - & - & - & 3 & 11\({}^{\circ}\) & - & - & - & 0.062 & - & - & - & 0.29 \\ Transury-asaminactone & fruity & - & 3 & - & 2 & NF & - & - & - & - & - & - & - & - \\ \(8\)-Decalactone & Peak-like, osmathous flower-like & 3 & 2 & 2 & 4 & 140\({}^{\circ}\) & 14.76 & 14.48 & 1.049 & 1.499 & 5.99 & 12.72 & 4.80 & 7.25 \\ Methyl anthralate & Grape juice-like & 3 & 1 & 2 & 3 & 3 [32] & 0.061 & 0.353 & 0.206 & 0.626 & 0.23 & 3.11 & 0.90 & 3.03 \\ Jasminidstone & Creamy, closely peach-like & 3 & 2 & 3 & 4 & 200\({}^{\circ}\) & 0.001 & 0.265 & 0.802 & 0.004 & 0.002 & 2.34 & 3.52 & 0.02 \\ Methyl jasomeate & Florai & 4 & 2 & 2 & 2 & 3 [19] & 4.28 & 0.047 & 0.629 & 3.569 & 16.23 & 0.41 & 2.76 & 17.28 \\ Indole & Florai & 3 & 4 & 3 & 4 & 140\({}^{\circ}\) & 1.215 & 0.337 & 1.291 & 0.586 & 4.61 & 2.96 & 5.67 & 2.83 \\
2-Phenylly acetate & Florai & 3 & 2 & 3 & 2 & 249\({}^{\circ}\) [33] & 0.076 & 0.023 & 0.014 & 0.063 & 0.288 & 0.21 & 0.06 & 0.31 \\ \hline \hline \end{tabular}  
* NF means data were not found in the literature: \({}^{\circ}\) means compounds were not caught and distinguished; Odor Thresholds/OTS) accessed from: \({}^{\circ}\) The IRI and Color Database and rotated reference.  
\end{table} 
Table 5: The aroma character, OT value, OAV, and ACI values of related compounds in ]BT. In four JBT samples, the OAVs of linalool (floral), phenylacetaldehyde (floral), and \(\delta\)-decalactone (peach-like aroma) were higher than 1, which indicates that these compounds could be the AAC of JBT.