Effects of harvesting Spirulina platensis biomass using coagulants and electrocoagulation–flotation on enzymatic hydrolysis

Sossella, Francine de Souza; Rempel, Alan; Nunes, Janayna Monroe Araújo; Biolchi, Gabriele; Migliavaca, Regina; Antunes, Ana Carolina Farezin; Costa, Jorge Alberto Vieira; Hemkemeier, Marcelo; Colla, Luciane Maria

doi:10.1016/j.biortech.2020.123526

Cited by 10 publications

(1 citation statement)

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“…Chlorella vulgaris is a remarkable fast‐growing microalgae species which contains valuable amount of lipids with suitable profile of fatty acids applicable for biofuel production, food supplementary, feed for farm animals and birds, aquaculture, and so on (Maltsev & Maltseva, 2021). Although, using microalgae can be economically beneficial when large‐scale cultivation and harvesting systems are constructed (Aro, 2016; de Souza Sossella et al, 2020). One of the barriers impeding for commercial applications of microalgae is the low lipid productivity leading to high cultivation cost (Kim et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Optimization of Chlorella vulgaris cultivation grown in waste molasses syrup using mixture design

Mohammadi

Arabian

2022

J Americ Oil Chem Soc

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The aim of this study was to determine and optimize culture media for Chlorella vulgaris microalgae under mixotrophic conditions using waste molasses as a cheap carbon source containing both organic carbons and other nutrients. In the current study, at first the growth and lipid productivity of C. vulgaris were assessed in different culture media and the best media was selected for mixotrophic growth conditions. Significant medium ingredients were screened through Plackett-Burman design. Then ingredients with positive effect were considered as a mixture component and their combinations were evaluated on lipid productivity using mixture design. According to results, Zarrouk medium was considered as the base medium with the highest biomass and lipid productivity of 72 and 7.1 mg L À1 d À1 , respectively. Based on the Plackett-Burman design, out of 11 factors, molasses, NaNO 3 and K 2 HPO 4 demonstrated key roles in biomass and lipid productivity in mixotrophic conditions. Consequently, the selected three factors were investigated by mixture design. The results showed that high concentration of molasses causes decrease in biomass and lipid productivity due to high turbidity and a blend consisting of approximately 9.5 g L À1 molasses, 5 g L À1 NaNO 3 and 0.15 g L À1 K 2 HPO 4 was found as the optimum mixture with obtained lipid productivity of 115 mg L À1 d À1 . In conclusion, waste molasses can be used as a promising feedstock for cost effective cultivation of C. vulgaris.

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