Table 3.

Concentration of 11 odor-active compounds in fruit extracts

No.	Compound	KIa	Concentration (ppm)b ± standard error
			‘Kosui’	‘Nijisseiki’	‘Niitaka’	‘Yakumo’	‘Kaori’	‘Ya li’	‘La France’
1	ethyl 2-methypropanoate	943	0.002 ± 0.001	ndc	0.002 ± 0.002	ndc	0.035 ± 0.002	0.054 ± 0.008	ndc
2	methyl 2-methylbutanoate	1008	0.016 ± 0.001	<0.001	<0.001	ndc	0.002	0.001 ± 0.001	ndc
3	ethyl butanoate	1033	0.013 ± 0.009	0.006 ± 0.003	0.039 ± 0.035	0.062 ± 0.021	4.190 ± 0.725	4.117 ± 0.482	0.140 ± 0.021
4	ethyl 2-methylbutanoate	1047	0.001 ± 0.001	ndc	0.001 ± 0.001	ndc	0.069 ± 0.011	0.126 ± 0.019	ndc
5	butyl acetate	1065	0.008 ± 0.001	0.011 ± 0.001	0.009 ± 0.001	0.006 ± 0.001	0.017 ± 0.002	0.120 ± 0.008	30.722 ± 3.660
6	hexanal	1072	0.217 ± 0.008	0.145 ± 0.024	0.228 ± 0.067	0.236 ± 0.059	0.406 ± 0.088	1.194 ± 0.126	0.360 ± 0.056
7	ethyl pentanoate	1127	0.003	<0.001	<0.001	0.003 ± 0.001	0.028 ± 0.001	0.027 ± 0.002	0.009 ± 0.001
8	pentyl acetate	1170	ndc	ndc	ndc	ndc	<0.001	0.001	0.346 ± 0.057
9	trans-2-hexenal	1212	0.151 ± 0.014	0.025 ± 0.004	0.099 ± 0.024	0.038 ± 0.014	0.112 ± 0.022	0.170 ± 0.009	0.341 ± 0.073
10	ethyl hexanoate	1234	0.004 ± 0.002	0.002	0.007 ± 0.006	0.001 ± 0.001	0.165 ± 0.034	0.495 ± 0.090	0.002 ± 0.002
11	hexyl acetate	1273	0.025 ± 0.012	ndc	ndc	ndc	0.029 ± 0.002	0.034 ± 0.005	16.797 ± 3.826
No.	Concentration (ppm)b ± standard error
	‘Fuji’	i0009	i1302	i01701	‘Sanenashi’	i0187	i0193	i0218	i0471
1	0.001 ± 0.001	0.113 ± 0.022	0.011 ± 0.003	0.150 ± 0.026	0.006 ± 0.003	ndc	0.029 ± 0.001	0.001 ± 0.001	ndc
2	0.001 ± 0.001	0.016 ± 0.004	0.003	0.034 ± 0.011	0.017 ± 0.003	0.008	0.008 ± 0.002	0.001 ± 0.001	0.007
3	0.174 ± 0.014	4.006 ± 0.623	0.989 ± 0.357	4.015 ± 0.189	1.112 ± 0.359	0.029 ± 0.004	1.862 ± 0.763	0.119 ± 0.012	0.256 ± 0.125
4	0.001 ± 0.001	0.472 ± 0.095	0.043 ± 0.008	0.601 ± 0.124	0.025 ± 0.013	0.005 ± 0.002	0.179 ± 0.010	0.001 ± 0.001	0.033 ± 0.021
5	0.215 ± 0.006	0.287 ± 0.031	0.248 ± 0.029	0.134 ± 0.014	1.621 ± 0.408	0.033 ± 0.002	0.017 ± 0.009	0.055 ± 0.025	0.028 ± 0.014
6	0.014 ± 0.001	0.256 ± 0.009	0.397 ± 0.034	0.817 ± 0.091	0.955 ± 0.157	2.195 ± 0.230	1.149 ± 0.338	0.871 ± 0.114	1.440 ± 0.188
7	0.011 ± 0.001	0.033 ± 0.002	0.038 ± 0.011	0.039 ± 0.001	0.019 ± 0.003	0.003	0.004 ± 0.002	0.022 ± 0.002	ndc
8	0.007 ± 0.001	0.008 ± 0.001	0.004 ± 0.001	0.005 ± 0.002	0.012 ± 0.005	0.001 ± 0.001	<0.001	ndc	ndc
9	0.468 ± 0.043	0.718 ± 0.089	0.803 ± 0.100	2.126 ± 0.011	2.171 ± 0.383	2.846 ± 0.217	1.669 ± 0.047	1.052 ± 0.505	0.905 ± 0.085
10	0.003 ± 0.002	2.730 ± 0.521	0.606 ± 0.224	1.673 ± 0.203	0.136 ± 0.071	0.008 ± 0.005	0.262 ± 0.052	0.002 ± 0.002	0.035 ± 0.025
11	0.038 ± 0.001	0.254 ± 0.019	0.078 ± 0.027	0.263 ± 0.021	0.177 ± 0.052	0.003 ± 0.003	0.046 ± 0.020	0.011 ± 0.006	0.026 ± 0.003
No.	Concentration (ppm)b ± standard error
	i0605	i0830	i0868	i0959	i0981	i1003	i1104	i1115
1	0.063 ± 0.010	ndc	0.031 ± 0.005	0.004	0.021	0.106 ± 0.007	0.022	0.007 ± 0.001
2	0.022 ± 0.002	0.002 ± 0.001	0.039 ± 0.008	ndc	0.001 ± 0.001	0.018 ± 0.003	0.004	ndc
3	3.660 ± 0.617	0.341 ± 0.066	1.332 ± 0.015	0.198 ± 0.038	0.921 ± 0.064	3.782 ± 0.583	0.568 ± 0.102	0.740 ± 0.007
4	0.477 ± 0.058	0.027 ± 0.008	0.215 ± 0.009	0.012 ± 0.001	0.089 ± 0.005	0.259 ± 0.065	0.065 ± 0.011	0.024 ± 0.005
5	3.171 ± 0.644	1.840 ± 0.022	0.323 ± 0.065	0.133 ± 0.030	0.949 ± 0.019	3.480 ± 0.413	0.015 ± 0.001	0.631 ± 0.055
6	0.001	0.066 ± 0.021	0.201 ± 0.033	0.342 ± 0.076	0.787 ± 0.315	1.041 ± 0.576	1.603 ± 0.432	1.599 ± 0.081
7	ndc	ndc	0.028 ± 0.003	0.001 ± 0.001	0.021 ± 0.001	0.043 ± 0.006	0.003 ± 0.001	0.008 ± 0.001
8	0.034 ± 0.005	0.020 ± 0.002	0.009 ± 0.001	0.002 ± 0.001	0.007 ± 0.006	0.079 ± 0.008	ndc	0.006 ± 0.001
9	0.216 ± 0.096	0.664 ± 0.089	1.791 ± 0.395	0.560 ± 0.178	0.950 ± 0.067	1.795 ± 0.701	2.474 ± 0.752	1.870 ± 0.011
10	3.105 ± 0.543	0.087 ± 0.023	0.545 ± 0.019	0.064 ± 0.011	0.395 ± 0.080	1.304 ± 0.220	0.124 ± 0.003	0.229 ± 0.015
11	0.982 ± 0.143	0.723 ± 0.087	0.107 ± 0.014	0.026 ± 0.007	0.129 ± 0.005	3.292 ± 1.376	0.004 ± 0.001	0.253 ± 0.040

^aKI means Kovats Index calculated for the DB-Wax capillary column (60 m × 0.25 mm i.d.).

^bMean values (±SE) obtained from experiments performed twice in duplicate were calculated.

^cnd: not detected due to too low peak or no peak.