Korean Journal of Breeding Science

Table. 4.

Volatile compounds identified by GC/MS in the new fragrant pear ‘Jinhyang’ and ‘Niitaka’ using SPME as extraction method.

No.	Compounds	RT^Z (min)	Jinhyang (ppb)	Niitaka (ppb)	p-value^y
1	ethyl acetate	6.464	25.84	0.11	0.00^***
2	acetic acid	7.345	-^x	0.05	0.00^***
3	ethyl propanoate	9.282	5.15	-	0.00^***
4	ethyl 2-methyl propanoate	11.144	1.29	-	0.03^*
5	hexanal	12.969	-	1.95	0.04^*
6	ethyl butanoate	12.998	102.02	-	0.00^***
7	butyl acetate	13.572	1.11	0.12	0.03^*
8	ethyl 2-methyl bytanoate	15.200	10.12	0.01	0.02^*
9	(E)-2-hexenal	15.387	2.31	1.17	0.15^ns
10	3-heptanone	16.872	0.37	0.42	0.82^ns
11	3-heptanol	17.400	0.10	0.97	0.37^ns
12	ethyl pentanoate	17.536	6.44	0.01	0.36^ns
13	pentyl acetate	18.124	0.10	0.02	0.07^ns
14	ethyl 3-methyl 2-batenoate	18.622	0.18	-	0.02^*
15	ethyl 3-hydroxy batanoate	19.123	1.71	-	0.03^*
16	2-heptenal	20.176	0.11	0.04	0.17^ns
17	ethyl hexanoate	21.998	139.82	0.22	0.03^*
18	octanal	22.230	0.35	0.15	0.15^ns
19	hexyl acetate	22.496	1.53	0.27	0.01^**
20	ethyl 2-hexenoate	23.869	1.28	-	0.01^*
21	(E)-2-octenal	24.551	0.08	0.03	0.12^ns
22	ethyl 2,4-hexadienoate	25.896	9.21	0.01	0.01^**
23	nonanal	26.426	1.16	0.39	0.10^ns
24	heptyl acetate	26.598	0.03	0.02	0.19^ns
25	methyl octanoate	27.107	-	-	-
26	ethyl 3-hydroxy hexanoate	27.336	0.71	-	0.01^*
27	2-nonenal	28.633	0.29	0.09	0.06^ns
28	2-decanone	29.788	0.13	0.04	0.23^ns
29	ethyl octanoate	29.905	2.81	0.00	0.02^*
30	decanal	30.360	0.19	0.05	0.06^ns
31	ethyl 2-octanoate	31.791	0.87	-	0.01^**
32	(E)-2-decenal	32.459	0.90	0.27	0.10^ns
33	methyl 4-decenoate	34.002	-	-	-
34	methyl decenoate	34.505	-	-	-
35	ethyl 3-hydorxyl octanoate	34.794	18.18	0.01	0.05^ns
36	2-undecenal	36.029	0.69	0.18	0.12^ns
37	methyl 2,4-decadienoate	37.026	-	0.04	0.21^ns
38	methyl 2,4-decadienoate	38.109	-	0.00	0.37^ns
39	6,10- dimethyl-5,9-undecadien-2-one	38.748	0.49	0.15	0.00^**
40	ethyl 2,4-decadienoate	39.379	5.32	0.03	0.02^*
41	2-farnesene	40.546	8.28	0.04	0.02^*
Total			349.16	6.85	-

^zRT, retention time.

^yns, non-significant; *, significant at p<0.05; **, significant at p<0.01; ***, significant at p<0.001, respectively.

^xNot detected.

Korean J. Breed. Sci. 2024;56:160-8 https://doi.org/10.9787/KJBS.2024.56.2.161