Effect of CO2 supply conditions on lipid production of Chlorella vulgaris from enzymatic hydrolysates of lipid-extracted microalgal biomass residues

Sequestration of CO2 by halotolerant algae

“…At both the concentrations, the growth increased steady with time till 11 days after which a sharp increase in growth was observed for high CO 2 concentration (1060 ppm) and stationery stage was reached after 14 days. Similar increase in Chlorella vulgaris growth with increasing CO 2 concentration has been reported by Zeng et al [8]. The lower growth rate of algae at low CO 2 concentration may be attributed to insufficient CO 2 supply.…”

Integrated Palm Oil Mill Effluent Treatment and CO2 Sequestration by Microalgae

“…The results obtained in this study shows that CO 2 concentration that exceed 5% corresponded to slightly low maximum specific growth rate only for C. vulgaris grew in both growth media. Similar results were obtained in previous study where C. vulgaris cultured in 15% CO 2 resulted in lower biomass productivity and maximum specific growth rate (Zheng et al 2012 Table 3 that the overall CO 2 capture rate (R CO2 ) for each species are not the same due to the types of microalgae, nutrient sources and CO 2 concentration. C. sorokiniana UKM 3 displayed the highest CO 2 capture rate (R CO2 ) followed by Chlorella spp.…”

CO2 utilization in the production of biomass and biocompounds by three different microalgae

“…The increase of specific growth rate (μ) with CO 2 enrichment is in agreement with Lam and Lee [26] who found that C. vulgaris biomass increased by 44.9%, from air (0.035%) to air enriched with 5% (v/v) CO 2 . This result is corroborated by Zheng et al [27] and Nayak et al [28] who also found a higher biomass productivity and lipid productivity. The decrease of the μ registered for C. vulgaris under 10% CO 2 concentration (μ = 0.41 d −1 ) could be explained by the CO 2 saturation present in the medium.…”