Impact of Sucrose Addition on the Physiochemical Properties and Volatile Compounds of “Shuangyou” Red Wines

Table 3

Odour activity values (OAVs) of major volatile compounds in the initial musts (day 0) and wines added with sucrose and controls (day 18).

Volatile compounds	Initial musts (day 0)		Wines (day 18)
			Controls (no sucrose added)		20 g/L sucrose		60 g/L sucrose		100 g/L sucrose
Esters
Ethyl acetate	0.563 ± 0.062		2.166 ± 0.186		2.156 ± 0.104		1.203 ± 0.176		1.560 ± 0.097
Ethyl butyrate	17.159 ± 0.600		5.892 ± 1.600		5.822 ± 0.550		11.226 ± 1.150		27.189 ± 0.900
3-Methylbutyl acetate	50.361 ± 2.700		58.976 ± 2.419		78.097 ± 6.381		84.246 ± 2.156		137.281 ± 11.713
Ethyl hexanoate	222.528 ± 13.038		67.631 ± 8.475		40.705 ± 3.425		149.664 ± 4.313		323.604 ± 13.175
Hexyl acetate	3.556 ± 0.084		0.270 ± 0.021		0.524 ± 0.051		0.385 ± 0.039		0.652 ± 0.028
Methyl octanoate	1.249 ± 0.035		0.759 ± 0.060		0.672 ± 0.045		1.469 ± 0.155		3.697 ± 0.175
Ethyl octanoate	27.076 ± 1.859		17.467 ± 1.914		12.654 ± 1.686		49.317 ± 2.319		126.921 ± 6.150
Ethyl 2-phenylacetate	0.000 ± 0.002		0.071 ± 0.006		0.079 ± 0.008		0.123 ± 0.005		0.234 ± 0.014
2-Phenylethyl acetate	1.977 ± 0.048		2.197 ± 0.084		4.427 ± 0.224		4.897 ± 0.180		10.648 ± 0.844
Ethyl nonanoate	0.069 ± 0.003		0.081 ± 0.003		0.164 ± 0.007		0.364 ± 0.018		0.659 ± 0.047
Ethyl decanoate	12.480 ± 1.820		3.118 ± 0.060		2.893 ± 0.215		8.091 ± 1.780		23.569 ± 0.620
3-Methylbutyl octanoate	0.313 ± 0.008		0.412 ± 0.032		0.473 ± 0.016		1.033 ± 0.176		4.310 ± 0.432
Ethyl dodecanoate	0.146 ± 0.059		0.072 ± 0.008		0.060 ± 0.001		0.087 ± 0.003		0.203 ± 0.009
Alcohols
Isoamyl alcohol	0.488 ± 0.100		2.575 ± 0.270		2.949 ± 0.325		7.585 ± 0.859		13.350 ± 1.064
1-Hexanol	0.202 ± 0.015		0.533 ± 0.020		0.408 ± 0.053		1.120 ± 0.029		1.251 ± 0.122
1-Octen-3-ol	2.637 ± 0.150		4.857 ± 0.250		8.353 ± 0.450		29.000 ± 0.600		22.489 ± 1.600
1-Octanol	0.585 ± 0.043		2.021 ± 0.295		1.590 ± 0.098		3.506 ± 0.120		3.770 ± 0.248
2-Phenylethanol	0.141 ± 0.031		1.333 ± 0.076		1.410 ± 0.221		2.526 ± 0.356		3.886 ± 0.356
1-Nonanol	0.004 ± 0.000		0.025 ± 0.001		0.023 ± 0.002		0.042 ± 0.001		0.063 ± 0.007
Acids
Isovaleric acid	0.000 ± 0.000		0.054 ± 0.008		0.251 ± 0.011		0.048 ± 0.014		0.206 ± 0.018
Octanoic acid	3.509 ± 0.246		5.277 ± 0.330		3.188 ± 0.254		6.313 ± 0.642		9.144 ± 0.732
Hexanoic acid	0.890 ± 0.074		1.770 ± 0.160		1.487 ± 0.055		0.242 ± 0.183		2.601 ± 0.267
Decanoic acid	0.149 ± 0.0 21		0.044 ± 0.008		0.041 ± 0.002		0.040 ± 0.007		0.053 ± 0.002
Ketones
6-Methyl-5-hepten-2-one	1.64 ± 0.04		9.42 ± 0.16		8.42 ± 0.28		11.30 ± 0.32		22.98 ± 1.76
β-Damascenone	578.57 ± 14.23		5535.714 ± 330.454		9235.714 ± 123.876		8492.851 ± 165.232		21142.857 ± 465.759
Geranyl acetone	0.783 ± 0.083		1.567 ± 0.067		1.417 ± 0.033		2.150 ± 0.210		2.783 ± 0.183

Values = mean values ± standard deviation (SD).