Table 1.

List of metabolites in different maize.

No.	Retention time	Name	JY88	HN18	DM9
1	5.187	Propanoic acid	−	−	+
2	5.602	Unknown	+	+	+
3	5.674	Dodecane	−	+	−
4	5.685	Rhamnitol	+	−	+
5	7.338	Butane	−	+	+
6	8.794	Acetamide	−	−	+
7	8.817	Glycerol	−	+	−
8	10.095	Anethole	+	−	+
9	10.148	N-acetylindole	+	−	+
10	11.283	Tetraethylene glycol	−	−	+
11	14.056	Tagatofuranose	+	−	+
12	15.22	Arabinose	−	+	−
13	15.805	Erythritol	+	+	+
14	15.859	Phenylphosphonic acid	+	−	−
15	15.859	Unknown	−	−	+
16	16.458	Unknown	+	−	+
17	16.931	Acetin	−	+	+
18	17.116	Threose	+	−	+
19	17.719	Sorbose	+	+	+
20	17.789	Galactose	−	+	−
21	17.874	d-Xylose	+	+	−
22	17.874	d-Glucose	−	−	+
23	17.947	Tagatose	+	+	−
24	17.995	Unknown	+	−	−
25	18.125	Glucuronic acid	+	−	+
26	18.165	Fructose	+	+	+
27	18.509	Talose	+	+	+
28	18.756	Allose	+	+	−
29	18.867	Galactoside	+	+	+
30	18.944	Mannitol	−	+	−
31	19.205	Xylopyranose	−	−	+
32	19.026	d-Glucitol	−	+	+
33	19.066	Ribitol	+	−	+
34	19.31	Lyxofuranose	−	−	+
35	19.441	Ascorbic acid	+	+	+
36	19.574	Fucopyranose	−	+	−
37	19.825	Cyclopropanetetradecanoic acid, 2-Octyl-, methyl ester	−	−	+
38	20.462	Palmitic acid	+	+	+
39	20.975	Inositol	+	+	+
40	21.073	10,13-Octadecadienoic acid	+	+	+
41	21.154	7-Octadecenoic acid	+	+	+
42	21.465	Tetradecanoci acid	+	+	−
43	21.592	inoleic acid	+	+	+
44	21.648	Octadecanoic acid	+	+	+
45	22.502	13-Octadecenoic acid	+	−	−
46	23.212	α-Linolenate	+	−	+
47	23.676	Dichloroacetic acid	−	−	+
48	26.876	Sucrose	−	+	−
49	27.157	Mannobiose	+	+	+
50	27.45	Trehalose	−	−	+
51	28.158	Uridine	−	−	+
52	28.334	13-Docosenoamide	+	−	−
53	29.075	Maltose	−	+	−
54	32.465	5-Cholestene-3-ol, 24-methyl-	+	−	+
55	32.564	Campesterol	−	+	−
56	33.344	β-Sitosterol	+	+	+
57	32.46	Unknown	−	+	+
58	32.465	Stigmast-5-ene, 3β-	−	+	−
59	33.568	Ergostane	−	+	−

“Unknown” indicated the matching degree of material and database is very low.

“ + ”indicated the compound was detected. “−” indicated the compound wasn’t detected.