Molecular and Technological Characterization of Saccharomyces cerevisiae Strains Isolated from Natural Fermentation of Susumaniello Grape Must in Apulia, Southern Italy

Table 3

Concentration of major chemical compounds in fermented musts obtained with fifteen autochthonous S. cerevisiae and one commercial starter (CM).

ID	Ethanol (%v/v)	Sugars; (g/L)	Total acidity (g/L)	Volatile acidity (g/L)	pH	Malic acid (g/L)	Lactic acid (g/L)	Tartaric acid (g/L)	Glycerol; (g/L)	Polyphenols (mg/L)
S5	10.97±0.00^a,b	2.70±0.05^a,b	5.06±0.01^a	0.37±0.01^a,b	3.33±0.01^a,b	2.94±0.01^a,b	n.d.	2.69±0.00^b,c	3.92±0.06^a,d	1075±7^e,f,g
S6	11.59±0.23^a,b	2.74±0.01^a,b	5.97±0.26^a	0.31±0.01^b	3.29±0.00^a,b	2.89±0.11^a,b	n.d.	3.20±0.12^a,b	5.52±0.20^a,c	1615±58^c,d
S7	11.93±0.00^a,b	2.35±0.04^a,b	6.40±0.01^a	0.26±0.01^b,c	3.41±0.00^a,b	2.78±0.01^a,b	0.18±0.02^b	2.81±0.02^b	3.68±0.07^b,c,d	1120±0.1^e,f
S8	12.60±0.01^a	1.98±0.08^a,b	6.59±0.01^a	0.14±0.01^c	3.22±0.01^a	2.87±0.00^a,b	n.d.	3.40±0.03^a	5.81±0.11^a,b	1749±14^b,c
S9	11.84±0.00^a,b	2.57±0.11^a,b	5.97±0.01^a	0.32±0.01^b	3.33±0.00^a,b	2.93±0.06^a,b	n.d.	2.77±0.05^b	4.15±0.04^a,c	1150±25^e
S12	11.58±0.12^a,b	2.64±0.07^a,b	5.95±0.07^a	0.27±0.01^b	3.34±0.01^a,b	2.99±0.03^a	n.d.	2.75±0.03^b	4.20±0.08^a,c	1212±10^e
S16	11.34±0.07^a,b	2.67±0.00^a,b	5.68±0.04^a	0.31±0.01^b	3.32±0.00^a,b	2.89±0.02^a,b	n.d.	3.09±0.03^a,b	5.14±0.07^a,c	1501±12^d
S21	10.65±0.00^a,b	2.94±0.05^a,b	5.32±0.01^a	0.24±0.01^b,c	3.30±0.10^a,b	2.82±0.30^a,b	n.d.	3.08±0.03^a,b	4.58±0.21^a,c	1250±10^e
S24	11.04±0.00^a,b	3.15±0.00^a	5.82±0.02^a	0.34±0.00^b	3.41±0.00^a,b	2.68±0.02^a,b	0.29±0.06^b	2.38±0.01^c	3.15±0.01^c,d	932±23^g
S39	12.24±0.04^a	2.25±0.03^a,b	6.68±0.01^a	0.24±0.00^b,c	3.28±0.00^a	2.92±0.00^a,b	n.d.	3.18±0.03^a,b	6.84±0.07^a	1765±4^b,c
S40	12.16±0.00^a	2.18±0.00^a,b	6.65±0.67^a	0.26±0.01^b,c	3.32±0.01^a,b	2.86±0.00^a,b	n.d.	2.07±0.01^d	6.51±0.25^a	1763±36^b,c
S41	11.51±0.03^a,b	2.65±0.05^a,b	6.94±0.07^a	0.21±0.01^b,c	3.27±0.01^a	3.00±0.01^a	n.d.	3.32±0.03^a	7.02±0.01^a	1841±17^b
S47	10.88±0.00^a,b	3.00±0.00^a	6.25±0.01^a	0.30±0.01^b	3.37±0.01^a,b	2.75±0.00^a,b	0.25±0.00^b	2.35±0.00^c	3.55±0.00^c,d	990±6^f,g
S52	10.46±0.72^b	2.82±0.78^a,b	6.77±0.40^a	0.23±0.01^b,c	3.41±0.02^b	2.45±0.16^b	0.43±0.05^a	2.27±0.12^c,d	2.18±0.60^d	770±34^h
S71	12.53±0.05^a	1.47±0.01^b	6.84±0.01^a	0.23±0.02^b,c	3.29±0.00^a	2.97±0.05^a	n.d.	3.22±0.03^a,b	7.21±0.00^a	1943±5^a
CM	11.23±0.24^a,b	2.90±0.17^a,b	6.61±0.11^a	0.46±0.02^a	3.33±0.02^a,b	2.88±0.06^a,b	n.d.	2.95±0.01^bs	6.69±0.39^a	1872±23^a,b

Values are the mean of two injections of each replicate (𝑛=6); the standard deviation values (±) are indicated. Different letters indicate means that differ significantly (𝛼=0.05). n.d.: not detectable.