Table 4. Summary of carbon source consumption, alkali consumption, and lactate accumulation during fermentation at different pH

pH (condition)	C0 (g/L)	Cend (g/L)	Total carbon consumption (g/L)	Alk0 (mL)	Alkend (mL)	Total alkali consumption (mL)	Lac0 (g/L)	Lacend (g/L)	Total lactate accumulation (g/L)
6.0 (control)	60.00	4.28	55.72	1,200	200	1,000	0.00	14.36	14.36
5.5		11.92	48.08		500	700		10.24	10.24
6.5		0.56	59.44		100	1,100		13.56	13.56

C₀, carbon initial; C_end, carbon final; Alk₀, alkali initial; Alk_end, alkali final; Lac₀, lactate initial; Lac_end, lactate final.