Autofermentation of alkaline cyanobacterial biomass to enable biorefinery approach

Table 1 Carbon balance for the autofermentation of highly alkaline cyanobacterial biomass at different temperatures

	Carbon recovery (mg C/g initial AFDM)^a
	21 °C	30 °C	37 °C
Initial total carbon in biomass	500.95	507.81	508.27
Final total carbon in biomass	231.01	258.38	251.61
Total carbon in organic acids	35.62	98.99	55.22
Acetate carbon	3.67	21.74	12.95
Succinate carbon	4.54	3.64	23.17
Formate carbon	1.22	n.d	n.d
Butyrate carbon	7.83	n.d	n.d
Propionate carbon	11.76	66.95	5.99
Lactate carbon	6.60	6.66	13.12
Total sugar carbon	5.73	3.73	9.22
Total protein carbon	98.71	81.79	46.63

^a Carbon distribution results are reported after 8 days under dark anaerobic conditions

ISSN: 2731-3654