# Volatile Metabolome and Aroma Differences of Six Cultivars of _Prunus mume_ Blossoms
## 2 Results and Discussion
### Analysis of P. mume Blossom Volatile Metabolites by HS-SPME-GC-MS
\begin{table}
\begin{tabular}{c c c c c c} \hline
**No.** & **Compound Name** & **CAS Number** & **Measured RI** & **Reference RI** & **Identification** \\ \hline \multicolumn{6}{c}{**Phenylpropanols/Benzenes**} \\
1 & o-Xylene & 108-38-3 & 1158.18 \(\pm\) 0.59 & 1158 & MS, RI \\
2 & Styrene & 100-42-5 & 1269.78 \(\pm\) 0.32 & 1263 & MS, RI \\
3 & Benzaldehyde & 100-52-7 & 1536.47 \(\pm\) 1.03 & 1529 & MS, RI, Std \\
4 & Methyl benzoate & 93-58-3 & 1649.52 \(\pm\) 1.06 & 1641 & MS, RI, Std \\
5 & Ethyl benzoate & 93-89-0 & 1691.64 \(\pm\) 0.61 & 1681 & MS, RI, Std \\
6 & Benzyl formate & 104-57-4 & 1700.61 \(\pm\) 1.34 & 1705 & MS, RI \\
7 & 4-Allylanisole & 140-67-0 & 1700.61 \(\pm\) 1.34 & 1687 & MS, RI \\
8 & Benzyl acetate & 140-11-4 & 1747.71 \(\pm\) 0.45 & 1746 & MS, RI, Std \\
9 & Methyl salicate & 119-36-8 & 1802.31 \(\pm\) 0.52 & 1798 & MS, RI \\
10 & 3,4-Dimethoxyltoluene * & 944-99-5 & 1828.76 \(\pm\) 0.42 & - & MS \\
11 & Benzyl alcohol & 100-51-6 & 1886.60 \(\pm\) 0.78 & 1878 & MS, RI, Std \\
12 & butyl benzoate & 136-60-7 & 1901.17 \(\pm\) 1.62 & 1882 & MS, RI \\
13 & (Z)-Cinnamaldehyde & 57194-69-1 & 1912.02 \(\pm\) 0.42 & 1884 & MS \\
14 & Phenylethyl Alcohol & 60-12-8 & 1915.72 \(\pm\) 0.31 & 1931 & MS, RI \\
15 & Isoamyl benzoate & 94-46-2 & 1944.08 \(\pm\) 1.33 & 1937 & MS, RI \\
16 & Phenylpropyl acetate & 122-72-5 & 1957.25 \(\pm\) 0.48 & 1965 & MS, RI \\
17 & Creosol & 93-51-6 & 1957.36 \(\pm\) 0.89 & 1952 & MS, RI \\
18 & Pentyl benzoate & 2049-96-9 & 2004.46 \(\pm\) 0.22 & 2017 & MS, RI \\
19 & Methylbeingenol & 93-15-2 & 2052.82 \(\pm\) 0.54 & 2030 & MS, RI, Std \\
20 & (E)-Cinnamaldehyde & 14371-10-9 & 2060.17 \(\pm\) 0.59 & 2063 & MS, RI, Std \\
21 & 3-Phenyl-1-propanol & 122-97-4 & 2060.17 \(\pm\) 0.59 & 2049 & MS, RI \\
22 & (E)-Methyl cinnamate & 1754-62-7 & 2099.75 \(\pm\) 0.69 & 2096 & MS, RI \\
23 & Cinnamyl formate * & 104-65-4 & 2122.36 \(\pm\) 0.58 & 2094 & MS \\
24 & Hexyl benzoate * & 6789-88-4 & 2122.36 \(\pm\) 0.58 & 2096 & MS \\
25 & 3-Buten-2-one, +phenyl.* & 1896-62-4 & 2137.34 \(\pm\) 1.32 & 2103 & MS \\
26 & 3-Hexen-1-ol, benzoate, (Z)- & 25152-85-6 & 2166.68 \(\pm\) 0.67 & 2148 & MS, RI \\
27 & (E)-Cinnamyl acetate & 21040-45-9 & 2175.61 \(\pm\) 0.89 & 2182 & MS, RI, Std \\
28 & Eugenol & 97-53-0 & 2180.34 \(\pm\) 1.15 & 2186 & MS, RI, Std \\
29 & (E)-Methyl isoughened & 6379-72-2 & 2027.29 \(\pm\) 0.40 & 2209 & MS, RI, Std \\
30 & cis-Isoeugenol & 5912-86-7 & 2285.01 \(\pm\) 0.74 & 2288 & MS, RI \\
31 & (E)-Cinnamic alcohol & 4407-36-7 & 2312.04 \(\pm\) 1.41 & 2294 & MS, RI, Std \\
32 & 4-allylphenol & 501-92-8 & 2371.78 \(\pm\) 1.24 & 2358 & MS, RI, Std \\
33 & trans-Isoeugenol & 5932-68-3 & 2394.44 \(\pm\) 0.99 & 2383 & MS, RI, Std \\
34 & Benzyl ether * & 103-50-4 & 2455.79 \(\pm\) 1.57 & 2356 & MS \\
35 & 5-Indanol * & 1470-94-6 & 2505.96 \(\pm\) 1.62 & & MS \\
36 & 2-Allylphenol * & 1745-81-9 & 2560.28 \(\pm\) 1.86 & 2132 & MS \\
37 & Benzyl benzoate & 120-51-4 & 2642.06 \(\pm\) 1.70 & 2655 & MS, RI, Std \\
**Fatty acid derivatives** & & & & & \\
38 & Acetic acid, methyl ester & 79-20-9 & 867.67 \(\pm\) 0.51 & 856 & MS, RI \\
39 & Hexanal & 66-25-1 & 1092.36 \(\pm\) 1.21 & 1093 & MS, RI \\
40 & 2-Hexenal, (E)- & 6728-26-3 & 1226.28 \(\pm\) 0.32 & 1232 & MS, RI, Std \\
41 & 1-Hexanol & 111-27-3 & 1385.07 \(\pm\) 0.64 & 1360 & MS, RI \\
42 & 3-Hexen-1-ol * & 544-12-7 & 1387.03 \(\pm\) 0.43 & 1388 & MS, RI \\
43 & 2-Hexen-1-ol(E) & 928-95-0 & 1409.33 \(\pm\) 0.39 & 1415 & MS, RI \\
44 & Nonanal & 124-19-6 & 1424.66 \(\pm\) 0.50 & 1406 & MS, RI \\ \hline \end{tabular}
\end{table} 
Table 1: Identification of volatile compounds in _P. mume_ blossoms.