Table 5.
Alcohol component of the grape vinegar production by initial alcohol content

Initial alcohol content (%)	Acetaldehyde	Methyl alcohol	1-propanol	2-methyl-1-propanol	Iso-amyl alcohol	Eethyl alcohol
Alcohol component (ppm)
6	ND1)	27.2±2.32)b3)	TR4)	2.3±0.1NS	ND	364.6±12.9c
7	ND	46.5±2.7b	ND	2.3±1.3	ND	533.9±26.6b
8	ND	52.7±0.0b	ND	2.5±0.0	TR	581.0±32.0b
9	-	-	-	-	-	-

ND: not detected.
Values are mean±SD (n=3).
Means with different superscripts (a-c) in the same column are significantly different (p<0.05) by Duncan’s multiple range test.
TR, trace; NS, not significantly different.