# Analysis of the Aroma Chemical Composition of Commonly Planted Kiwifruit Cultivars in China
## 3 Results and Discussion
### HS-SPME-GC-MS Analysis
#### 3.1.2 HS-SPME-GC-MS Analysis of Volatile Components in Kiwifruit Samples
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**NO.** & **Compounds** & **RI a** & **CAS b** & **Concentration Range** & **Cultivars c** \\ \hline
105 & 7-Hexyleicosane & 2542 & 55333-99-8 & 0.00–7.23 & 1 \\
106 & Heneicosane & 2109 & 629-94-7 & 0.00–1.71 & 1 \\
107 & Eicosane & - & 112-95-8 & 0.00–1.27 & 1 \\ \hline _Alkenes_ & & & & & \\
108 & 1-Pentrene & 508 & 109-67-1 & 0.00–2.77 & 1 \\
109 & \(\beta\)-cis-Amylene & 516 & 627-20-3 & 0.00–1.49 & 1 \\
110 & 1,4-Pentadiene & 498 & 591-93-5 & 0.00–5.07 & 1 \\
111 & 13-Pentadiene & 516 & 504-60-9 & 0.00–1.93 & 1 \\
112 & (E)-1-Butoxy-2-methyl-2-butene & 977 & - & 0.00–4.57 & 1 S \\
113 & & & & & \\
114 & 3-Ethyl-1,5-ocatadiene & 949 & - & 0.00–25.25 & 6 S \\
115 & \(\alpha\)-thujene & 902 & 2867-05-2 & 0.00–3.96 & 6 \\
116 & \(\alpha\)-Pinene & 948 & 80-56-8 & 0.00–406.12 & 9 S \\
117 & Camphene & 943 & 79-92-5 & 0.00–22.85 & 1 S \\
118 & (1s)-(-)beta-pinene & 943 & 18172-67-3 & 0.00–543.45 & 3 S \\
119 & \(\beta\)-Myrence & 958 & 123-35-3 & 0.00–18.67 & 6 \\
120 & 1-Decene & 1005 & 872-05-9 & 0.00–4.12 & 17 H \\
121 & (+)-4-Carene & 919 & 29050-33-7 & 0.00–27.72 & 11 S \\
122 & D-Limonene & 1018 & 5989-27-5 & 1.55–201.63 & 23 S,AH \\
123 & \(\beta\)-Ocimene & 976 & 3779-61-1 & 0.00–2.03 & 1 \\
124 & \(\gamma\)-Terpinene & 998 & 99-85-4 & 0.00–58.33 & 14S \\
125 & \(\alpha\)-Isopropenyltoluene & 1073 & 7399-49-7 & 0.00–209.16 & 15 S \\
126 & 3-Isopropylidene-6-methyl-1-cyclohexene & 1023 & 586-63-0 & 0.00–724.50 & 21 S \\
127 & (E)-4-Undecene & 1123 & 693-62-9 & 0.00–5.05 & 13 H \\
128 & (E)-3-Terradecene & 1421 & 41446-68-8 & 0.00–2.92 & 1 \\
129 & 1,3,8-p-Mentatriene & 1029 & 18368-95-1 & 0.00–28.51 & 7 \\
130 & (E)-5-Methyl-4-decene & 1100 & 62338-51-6 & 0.00–1.63 & 1 \\
131 & (E)-5-Undecene & - & 764-97-6 & 0.00–1.06 & 1 \\
132 & \(p\)-Mentha-1,5,8-triene & - & 21195-59-5 & 0.00–13.70 & 10 \\
133 & (1R,5-cis,6-cis)-Bicyclol(3.2,2)non-8-en-6-ol & 1152 & - & 0.00–0.66 & 1 \\
134 & 1,7,7- trimethylbicyclo [2.2.1] hept-2-ene & 932 & 464-17-5 & 0.00–20.06 & 3 A,H \\
135 & \(\alpha\)-Cubebeene & 1344 & 17699-14-8 & 0.00–15.01 & 9 \\
136 & 1-Pentadecene & 1502 & 13360-61-7 & 0.00–6.81 & 2 \\
137 & (E)-9-octadececene & 1818 & 7206-25-9 & 0.00–7.96 & 2 \\
138 & \(\alpha\)-Copaene & 1221 & - & 0.00–3.62 & 1 \\
139 & 1-Tetradecene & 1403 & 1120-36-1 & 0.00–2.70 & 7 \\
140 & Germacrene D & 1515 & 23986-74-5 & 0.00–2.68 & 1 \\
141 & Isoledene & - & 95910-36-4 & 0.00–1.01 & 2 \\
142 & \(\alpha\)-Muurolene & 1440 & 10208-807- & 0.00–6.65 & 1 \\
143 & _cis_-Calamennene & - & 72937-55-4 & 0.00–52.90 & 9 \\
144 & \(\gamma\)-Muurolene & 1435 & 39029-41-9 & 0.00–1.48 & 1 \\
145 & \(\alpha\)-Calacorene & 1547 & 21391-99-1 & 0.00–5.33 & 1 \\
146 & \(\alpha\)-Corocalene & - & 20129-39-9 & 0.00–2.84 & 1 \\
147 & pristane & 1653 & 1921-70-6 & 0.00–20.11 & 1 \\ \hline _Aromatic_ & & & & & \\ _hydrocar-_ & & & & & \\ _bons and_ & & & & & \\ _their ho-_ & & & & & \\ _mologues_ & & & & & \\ 148 & Toluene & 794 & 108-88-3 & 0.00–38.54 & 19 S,AH \\
149 & \(\alpha\)-Xylene & 907 & 95-47-6 & 0.00–196.84 & 20 S,AH \\
150 & \(p\)-Xylene & 907 & 106-42-3 & 0.00–39.14 & 2 \\
151 & 2-Phenylpropene & 928 & 98-83-9 & 0.00–2.64 & 1 \\
152 & \(p\)-Cymene & 1042 & 99-87-6 & 0.00–47.77 & 19 S \\
153 & n-Butylbenzene & 1092 & 104-51-8 & 0.00–2.16 & 8 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: _Cont._Third, volatile substances contained in only one kiwifruit sample were defined as unique volatiles. There were 74 unique volatiles in 23 kiwifruit samples. Among the 23 kiwifruit cultivars in this study, there were 37 volatile components in Sungold, including 13 primary volatiles, 10 secondary volatiles, and 3 unique volatiles. There were 33 volatile components in Hayward, including 15 primary volatiles, 12 secondary volatiles, and no unique volatiles. Additionally, there were 32 volatile components in Hort16A, including 15 primary volatiles, 11 secondary volatiles, and one unique volatile.