. 2022 Dec 6;9:1031594. doi: 10.3389/fnut.2022.1031594

TABLE 2.

Basic physical and chemical indicators of Petit Manseng grape juice and wine.

Detection indicator		Sterilization group				Natural group
	Grape juice	Control	YT13	H30 + EC1118	H30 + YT13	Control	YT13	H30 + EC1118	H30 + YT13
Fermentation days (days)	0	19	22	23	23	13	17	15	15
pH	3.1 ± 0.02	3.1 ± 0.05^a	3.2 ± 0.02^a	3.1 ± 0.05^a	3.2 ± 0.04^a	3.1 ± 0.04^a	3.2 ± 0.01^a	3.1 ± 0.03^a	3.1 ± 0.03^a
Sugar content (g/L)	230 ± 0.10	1.9 ± 0.02^a	2.3 ± 0.01^a	1.9 ± 0.07^a	2.0 ± 0.13^a	1.4 ± 0.01^d	1.7 ± 0.09^c	1.9 ± 0.12^b	2.3 ± 0.05^a
Total acid (g/L)	8.8 ± 0.04	9.4 ± 0.05^ab	9.6 ± 0.04^a	9.3 ± 0.05^b	9.3 ± 0.04^b	9.3 ± 0.03^a	9.3 ± 0.11^a	9.3 ± 0.10^a	9.3 ± 0.08^a
Alcohol (%Vol)	N.D.	13.2 ± 0.06^a	13 ± 0.10^a	13.2 ± 0.06^a	13.1 ± 0.09^a	13.1 ± 0.07^a	13 ± 0.10^a	13.3 ± 0.12^a	13.2 ± 0.01^a
Total phenol (mg/L)	N.D.	375.47 ± 10.67^b	372.17 ± 8.00^b	394.81 ± 1.33^a	387.74 ± 2.00a^b	340.33 ± 7.67^b	362.97 ± 11.01^a	354.24 ± 7.34a^b	295.99 ± 1.00^c

The control group was inoculated with commercial Saccharomyces cerevisiae EC1118 (EC1118), while the test groups are treated as follows: YT13 Saccharomyces cerevisiae fermentation (YT13); H30 fermentation for 3 days, followed by inoculation with EC1118 for sequential fermentation (H30 + EC1118); H30 fermentation for 3 days, followed by inoculation with YT13 for sequential fermentation (H30 + YT13). In the table, N.D. means not detected. Different letters indicate significant differences at p < 0.05.