2022
DOI: 10.3389/fmicb.2022.820907
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Acid Tolerant and Acidophilic Microalgae: An Underexplored World of Biotechnological Opportunities

Abstract: Despite their large number and diversity, microalgae from only four genera are currently cultivated at large-scale. Three of those share common characteristics: they are cultivated mainly autotrophically and are extremophiles or tolerate “extreme conditions.” Extreme growth conditions aid in preventing contamination and predation of microalgae, therefore facilitating outdoor cultivation. In search for new extremophilic algae suitable for large-scale production, we investigated six microalgal strains able to gr… Show more

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Cited by 17 publications
(9 citation statements)
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“…Additionally, the apoprotein from aPC is believed to possess an antioxidative character (Eriksen, 2008). Moreover, PC is the only approved blue coloring food within the European Union with some others currently pending approval (Abiusi et al, 2022). Coloring foods provide an excellent solution for appealing colors while meeting customer demands for natural products and they are generally defined as purely physically and nonselctively extracted coloring additives from foodstuff (Carle and Schweiggert, 2016).…”
Section: Introductionmentioning
confidence: 99%
“…Additionally, the apoprotein from aPC is believed to possess an antioxidative character (Eriksen, 2008). Moreover, PC is the only approved blue coloring food within the European Union with some others currently pending approval (Abiusi et al, 2022). Coloring foods provide an excellent solution for appealing colors while meeting customer demands for natural products and they are generally defined as purely physically and nonselctively extracted coloring additives from foodstuff (Carle and Schweiggert, 2016).…”
Section: Introductionmentioning
confidence: 99%
“…These unique characteristics also make Galdieria spp. suitable for biotechnological uses, including the efficient production of biomass, biocrude oil, and benecial compounds such as phycocyanin and oridosides, 13,[16][17][18] as well as efficient wastewater treatment 16,19 and metal recovery. [20][21][22][23][24] Our previous study comparing G. sulphuraria to the green alga Chlorella vulgaris has demonstrated the highly efficient recovery of Au and Pd from acidic solutions.…”
Section: Introductionmentioning
confidence: 99%
“…These unique characteristics also make Galdieria spp. suitable for biotechnological uses, including the efficient production of biomass, biocrude oil, and beneficial compounds such as phycocyanin and floridosides, 13,16–18 as well as efficient wastewater treatment 16,19 and metal recovery. 20–24…”
Section: Introductionmentioning
confidence: 99%
“…Galdieria sulphuraria is a polyextremophile unicellular microalga able to grow at temperatures up to 56°C and at a pH between 0.5 and 4. Additionally, G. sulphuraria presents a versatile metabolism, growing autotrophically, heterotrophically or mixotrophically (Abiusi et al 2022b).…”
Section: Introductionmentioning
confidence: 99%
“…However, contamination by bacteria and fungi is a notable issue when the medium contains sources of organic carbon. The cultivation of extremophilic microalgae is a strategy that can prevent the growth of bacteria or other predators, improving the e cacy of microalgae-based treatment (Abiusi et al 2022b).…”
Section: Introductionmentioning
confidence: 99%