Table 1.

Metabolite profile of S. cerevisiae in control, phenolics-free yeast minimal mineral medium control medium in comparison with S. cerevisiae presence of each of 1.1 mM coniferyl aldehyde, 1.8 mM ferulic acid and 9.7 mM p-coumaric acid

	Titre at the end of cultivation (g/l)	Titre at the end of respirofermentative phase (g/l)	Yield (g/g)	µmax (h−1)	Respirofermentative	Respiratory
					q (gg−1 h−1)	q (gg−1 h−1)
Yeast minimal mineral medium
Glucose		0.01 ± 0.005	1	0.37 ± 0.02	3.94 ± 0.04
Ethanol		6.87 ± 0.1	0.39 ± 0.011		1.53 ± 0.02
Biomass	10.24 ± 0.03	2.13 ± 0.07	0.11 ± 0.019		0.37 ± 0.02	0.08 ± 0.001
Glycerol	0.06 ± 0.06	1.52 ± 0.1	0.08 ± 0.006		0.30 ± 0.05
Acetate		0.37 ± 0.02	0.01 ± 0.001		0.03 ± 0.005
CO2	15.18 ± 0.03	2.99 ± 0.1	0.30 ± 0.012		1.56 ± 0.12
Coniferyl aldehyde
Glucose		0.04 ± 0.005	1	0.41 ± 0.07	4.68 ± 0.10
Ethanol		5.73 ± 0.06	0.40 ± 0.01		1.87 ± 0.10
Biomass	13.44 ± 0.06	1.39 ± 0.03	0.08 ± 0.009		0.35 ± 0.01	0.09 ± 0.005
Glycerol		1.18 ± 0.02	0.08 ± 0.006		0.37 ± 0.04
Acetate		0.09 ± 0.04	0.01 ± 0.001		0.03 ± 0.002
CO2	16.25 ± 0.07	4.72 ± 0.03	0.34 ± 0.005		1.59 ± 0.12
Ferulic acid
Glucose		0.01 ± 0.005	1	0.35 ± 0.02	6.82 ± 0.08
Ethanol	0.08 ± 0.02	6.57 ± 0.001	0.36 ± 0.005		2.44 ± 0.02
Biomass	9.41 ± 0.05	1.35 ± 0.014	0.06 ± 0.008		0.41 ± 0.04	0.11 ± 0.006
Glycerol	0.18 ± 0.00	1.35 ± 0.05	0.08 ± 0.002		0.51 ± 0.04
Acetate		0.12 ± 0.006	0.01 ± 0.001		0.05 ± 0.002
CO2	20.05 ± 0.1	3.34 ± 0.006	0.29 ± 0.01		2.29 ±  0.1
p-Coumaric acid
Glucose		0.02 ± 0.02	1	0.29 ± 0.02	2.95 ± 0.07
Ethanol	0.02 ± 0.02	5.4 ± 0.05	0.37 ± 0.011		1.11 ± 0.05
Biomass	8.19 ± 0.02	1.93 ± 0.05	0.14 ± 0.07		0.29 ± 0.02	0.09 ± 0.003
Glycerol	0.07 ± 0.03	1.32 ± 0.02	0.12 ± 0.002		0.31 ± 0.04
Acetate		0.08 ± 0.01	0.01 ± 0.001		0.02 ± 0.008
CO2	12.23 ± 0.13	1.54 ± 0.0	0.03 ± 0.005		0.07 ± 0.004