trategy for the cultivation of Chlorella vulgaris with high biomass production and biofuel potential in wastewater from the oil industr

Autor(es)

Silva, Danilo Alves ^[1] ; Cardoso, Lucas Guimaraes ^[2] ; de Jesus Silva, Jamilla Sueira ^[1] ; de Souza, Carolina Oliveira ^[1] ; Franca Lemos, Paulo Vitor ^[3] ; de Almeida, Paulo Fernando ^{[3, 4]} ; Ferreira, Ederlan de Souza ^[1] ; Lombardi, Ana Teresa ^[2] ; Druzian, Janice Izabel ^{[1, 3]}

Afiliação do(s) autor(es)

^[1] Univ Fed Bahia, Fac Pharm, Grad Program Food Sci, Salvador, BA - Brazil

^[2] Univ Fed Sao Carlos, Dept Bot, Lab Algae Biotechnol, Sao Paulo - Brazil

^[3] Univ Fed Bahia, Inst Hlth Sci, Northeast Biotechnol Network, Salvador, BA - Brazil

^[4] Univ Fed Bahia, Inst Hlth Sci, Lab Microbiol & Bioproc Moacyr Durham Moura Costa, Salvador, BA - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ENVIRONMENTAL TECHNOLOGY & INNOVATION; v. 25, FEB 2022.
• Citações Web of Science: 0

Resumo

This work aimed to provide a biochemical characterisation of Chlorella vulgaris biomass cultivated with daily supplementation of produced water. The simultaneous phytoremediation and production of biomolecules and bioproducts of commercial interest were analysed and discussed. Cultures were grown in laboratory scale photobioreactors for 26 days in 1.5 L of BG11 medium, with daily supplementation of 50 mL of non-autoclaved produced water (T-PW) or distilled water (T-DW). Biomass production differed among the control (3.86 g L-1), Tp w (1.69 g L-1), and lb w (1.82 g L-1). The Tp w -treated culture showed a high concentration of carbohydrates (40.19 %) with a bioethanol production of 18.22 mL 100 g(-1) of biomass. The content of carotenoids (2.4 mu g mL(-1)), protein (22.83 %), and lipids (21.53 %) were also determined. The lipid composition consisted mostly of palmitoleic (5.42 mg g(-1)), gamma-linolenic (3.02 mg g(-1), and linolelaidic (1.94 mg g(-1)) acids, which gave the oil the ideal properties for quality biodiesel. In addition, the high phytoremediation efficiency of heavy metals such as copper (70.00 %), manganese (76.89 %), and molybdenum (97.82 %), as well as total petroleum hydrocarbons (48.59 %), were also detected. Therefore, T-PW can be a promising alternative for phytoremediation of chemical compounds, while utilising effluent from the oil industry to produce a high content of valuable biomass, biomolecules, and biofuels. (C) 2021 The Author(s). Published by Elsevier B.V. (AU)

• Processo FAPESP: 19/26571-0 - Microalgas na energia renovável: produção de biodiesel e bioplástico na biorremediação de água da extração de petróleo
• Beneficiário: Ana Teresa Lombardi
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 20/15688-1 - Definindo os melhores sistemas de cultivo para o escalonamento das novas espécies de microalgas (espécies selecionadas nas etapas anteriores do projeto temático)
• Beneficiário: Lucas Guimarães Cardoso
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado