Table 1.

Qualitative comparison of selected metabolites by cultivar and beverage type. +, metabolite present, ++ metabolite in high concentration, — metabolite undetectable, ± metabolite in low concentration. GABA, ɣ-ammino butyric acid. * only detected in the case of EC1118 Yeast.

Metabolite	Juice (Jolly Red)	Juice (Smith)	Wine (Jolly Red)	Wine (Smith)
Acetate	–	–	±	±
alanine	+	+	+	+
anthocyanins	±	±	–	–
arginine	±	±	±	±
asparagine	±	+	–	–
2,3-butanediol	–	–	±*	±*
citrate	+	++	++	++
ethanol	±	±	++	++
formate	+	+	+	–
fructose	+	+	+	+
GABA	±	±	–	–
gallate	±	–	+	++
glutamine	+	+	–	–
glycerol	–	–	+	+
iso-pentanol/iso-butanol	–	–	±	±
lactate	±	±	–	–
malate	±	±	±	±
phenylalanine	±	±	±	±
succinate	–	–	+	+
sucrose	+	+	–	–
trigonelline	±	±	±	±
valine	±	+	–	–
α-glucose	+	+	–	–
β-glucose	++	++	±	±