Screening for heterotrophy in microalgae of various taxonomic positions and potential of mixotrophy for production of high-value compounds

Přibyl, Pavel; Cepák, Vladislav

doi:10.1007/s10811-019-1738-9

Cited by 16 publications

(3 citation statements)

References 41 publications

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“…In turn, in the study conducted by Přibyl and Cepák (2019), EPS production by Dictyosphaerium chlorelloides did not differ between the mixotrophic and photoautotrophic modes [76]. The highest level of algal organic matter (which is closely related to EPS) produced by Scenedesmus obliquus in photoautotrophic conditions was reported by Choi et al (2019) [77].…”

Section: Carbonmentioning

confidence: 83%

Extracellular Polymeric Substances (EPS) as Microalgal Bioproducts: A Review of Factors Affecting EPS Synthesis and Application in Flocculation Processes

Babiak

Krzemińska

2021

Energies

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Microalgae are natural resources of intracellular compounds with a wide spectrum of applications in, e.g., the food industry, pharmacy, and biofuel production. The extracellular polymeric substances (EPS) released by microalgal cells are a valuable bioproduct. Polysaccharides, protein, lipids, and DNA are the main constituents of EPS. This review presents the recent advances in the field of the determinants of the synthesis of extracellular polymeric substances by microalgal cells and the EPS structure. Physical and chemical culture conditions have been analyzed to achieve useful insights into the development of a strategy optimizing EPS production by microalgal cells. The application of microalgal EPS for flocculation and mechanisms involved in this process are also discussed in terms of biomass harvesting. Additionally, the ability of EPS to remove toxic heavy metals has been analyzed. With their flocculation and sorption properties, microalgal EPS are a promising bioproduct that can potentially be used in harvesting algal biomass and wastewater management.

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Section: Carbonmentioning

confidence: 83%

Extracellular Polymeric Substances (EPS) as Microalgal Bioproducts: A Review of Factors Affecting EPS Synthesis and Application in Flocculation Processes

Babiak

Krzemińska

2021

Energies

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“…Investigation for heterotrophic growth among the strains was carried out on a D-glucose (20g/L)—supplemented BG11 medium [ 20 ]. Cultures were wrapped in aluminum foil and incubated in the dark at ambient conditions for 4 weeks and strains that grew under this condition were deemed as mixotrophs.…”

Section: Methodsmentioning

confidence: 99%

Novel microalgae strains from selected lower Himalayan aquatic habitats as potential sources of green products

et al. 2022

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Microalgal biomass provides a renewable source of biofuels and other green products. However, in order to realize economically viable microalgal biorefinery, strategic identification and utilization of suitable microalgal feedstock is fundamental. Here, a multi-step suboptimal screening strategy was used to target promising microalgae strains from selected freshwaters of the study area. The resulting strains were found to be affiliated to seven closely-related genera of the family Scenedesmaceae, as revealed by both morphologic and molecular characterization. Following initial screening under upper psychrophilic to optimum mesophilic (irregular temperature of 14.1 to 35.9°C) cultivation conditions, superior strains were chosen for further studies. Further cultivation of the selected strains under moderate to extreme mesophilic cultivation conditions (irregular temperature of 25.7 to 42.2°C), yielded up to 74.12 mgL-1day-1, 19.96 mgL-1day-1, 48.56%, 3.34 μg/mL and 1.20 μg/mL, for biomass productivity, lipid productivity, carbohydrate content, pigments content and carotenoids content respectively. These performances were deemed promising compared with some previous, optimum conditions-based reports. Interestingly, the fatty acids profile and the high carotenoids content of the studied strains revealed possible tolerance to the stress caused by the changing suboptimal cultivation conditions. Overall, strains AY1, CM6, LY2 and KL10 were exceptional and may present sustainable, promising feedstock for utilization in large-scale generation of green products, including biodiesel, bioethanol, pigments and dietary supplements. The findings of this study, which exposed promising, eurythermal strains, would expand the current knowledge on the search for promising microalgae strains capable of performing under the largely uncontrolled large-scale cultivation settings.

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“…For heterotrophy culture, microalgae absorb external organic carbon to synthesize biomass and reproduce under dark conditions ( Pribyl and Cepak, 2019 ). Heterotrophs do not rely on external inorganic carbon sources and light energy.…”

Section: Application Of Different Microalga Cultivation Modes In Aqua...mentioning

confidence: 99%

The role of microalgae culture modes in aquaculture: a brief opinion

Cheng

Shan

Zhu³

et al. 2023

Front. Bioeng. Biotechnol.

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Screening for heterotrophy in microalgae of various taxonomic positions and potential of mixotrophy for production of high-value compounds

Cited by 16 publications

References 41 publications

Extracellular Polymeric Substances (EPS) as Microalgal Bioproducts: A Review of Factors Affecting EPS Synthesis and Application in Flocculation Processes

Extracellular Polymeric Substances (EPS) as Microalgal Bioproducts: A Review of Factors Affecting EPS Synthesis and Application in Flocculation Processes

Novel microalgae strains from selected lower Himalayan aquatic habitats as potential sources of green products

The role of microalgae culture modes in aquaculture: a brief opinion

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