TABLE 1.

The representation of matrix (Vitis vinifera) matched calibration for each compound and their limit of detection (LOD) and limit of quantification (LOQ) from SPME‐GC‐TQ/MS.

Compounds	Linear range (ng/g)	Calibration curve		LOD (ng/g)	LOQ (ng/g)
		Equation	R 2
Hexanal	0.5–150	1.5845x + 0.1654	0.9997	0.014	0.027
Heptanal	0.5–150	1.1041x + 0.1659	0.9992	0.018	0.054
Pentanal	0.5–100	1.3567x + 0.1458	0.9992	0.023	0.068
Nonanal	0.5–150	0.1658x + 0.1367	0.9991	0.032	0.096
Furan	0.5–250	0.1098x − 0.1348	0.9998	0.012	0.036
Furfural	0.5–250	0.1673x + 0.1135	0.9991	0.125	0.375
Furan 2‐ethyl‐5 methyl	0.5–150	0.1355x + 0.1287	0.9996	0.109	0.327
Furan 2‐Propyl	0.5–100	0.1983x + 0.1087	0.9994	0.142	0.426
3‐Furaldehyde	0.5–150	0.1983x + 0.1398	0.9990	0.105	0.315
5‐Hydroxymethylfurfural	0.5–250	0.1902x + 0.1148	0.9994	1.056	3.168
1‐pentanone 2‐furanyl	0.5–100	0.0583x − 0.1198	0.9997	1.095	3.275
2‐Pentylfuran	0.5–350	0.1329x + 0.1653	0.9992	1.560	4.680

Note: LOD = 3*σ/m, LOQ = 10*σ/m where m refers to calibration curve slope and σ refers to standard deviation of y‐intercept.