Bioremediation Using Microalgae and Cyanobacteria and Biomass Valorisation

Encarnação, Telma; Ramos, Pedro M.; Danouche, Mohammed; McDonald, Joe; Lizzul, Marco; Nicolau, N.; Campos, Maria da Graça; Sobral, A. J. F. N.

doi:10.1007/978-3-031-17226-7_2

Cited by 10 publications

(4 citation statements)

References 73 publications

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“…Also, the algal biomass obtained after the bioremediation can produce value-added products like fertilizers, feeds, pesticides, pigment extraction, biofuels, etc. [74,75]. Along with the treatment, it has also been observed that the treated effluent tends to have higher dissolved oxygen content while releasing into back into the environment [76].…”

Section: Phycoremediation As a New Age Eco-friendly Technology For Ap...mentioning

confidence: 99%

Phycoremediation of Synthetic Dyes Laden Textile Wastewater and Recovery of Bio-Based Pigments from Residual Biomass: An Approach towards Sustainable Wastewater Management

et al. 2023

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The textile industry is a growing sector worldwide and has immense opportunity in terms of providing employment and boosting a nation’s economy. However, there exist severe environmental risks associated with textile effluents that impact the surrounding ecosystem. This review offers an approach for sustainable water management using phycoremediation to treat dye-laden wastewater and recover bio-based pigments from the residual biomass. Microalgae such as Chlorella, Scenedesmus, Phormidium, and macroalgae like Sargassum, Enteromorpha, and Codium has been extensively used in several phycoremediation-based studies, and their residual biomass could be a potent source for extraction of bio-based pigments. This review also recommends studies involving the algal-bacterial consortia approach for treating dye-laden wastewater as an alternative to conventional, biobased methods. The outcome of this study will provide policymakers and researchers with new insight to manage water and wastewater resources sustainably. Furthermore, this review also enhances our understanding of nature-based decontamination approaches for treating dye-laden wastewater through algal-based technologies.

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Section: Phycoremediation As a New Age Eco-friendly Technology For Ap...mentioning

confidence: 99%

Phycoremediation of Synthetic Dyes Laden Textile Wastewater and Recovery of Bio-Based Pigments from Residual Biomass: An Approach towards Sustainable Wastewater Management

et al. 2023

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“…Their bioactive compounds also have potential for use in biotechnological and pharmaceutical applications, which could create jobs and protect marine biodiversity. Notwithstanding these opportunities, a comprehensive and longterm integration of cyanobacteria into the blue economy necessitates careful consideration of issues like scalability, harmful algal blooms and environmental impact assessments [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Cyanobacteria: Symbiosis with the Sea - A MiniReview on their Role in Advancing the Blue Economy

Anburaj

2024

SBB

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The concept of the Blue Economy, which emphasizes industries based on the ocean, has made cyanobacteria important players. The numerous ways that cyanobacteria contribute to the aquaculture, bioenergy, bioremediation and pharmaceutical industries are examined in this minireview. This article summarizes current developments and cyanobacteria research initiatives that are promoting economic growth, sustainability and innovation in the marine environment. Cyanobacteria are showing to play a significant role in determining the direction of the Blue Economy, both through their production of bioactive compounds and their role in sequestering carbon.

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“…The possible interference of relic DNA or fragmental cells has also been a challenging question raised with respect to the detection of resting cysts (spores and resting-stage cells) of microalgae, dinoflagellates in particular, from marine sediment using the metabarcoding approach. Microalgae not only act as some of the most important primary producers but also play vital roles in the bioremediation of anthropogenic pollutants from water [34]. Resting cysts, representing a dormant stage in the life history of microalgae, maintain viability from months to decades or even centuries [35][36][37][38] in sediment and play vital roles in the ecology of dinoflagellates and other microalgae, particularly in initiating and terminating harmful algal blooms (HABs) [35] and in expanding geographic distribution [39,40].…”

Section: Introductionmentioning

confidence: 99%

DNA and RNA Stability of Marine Microalgae in Cold-Stored Sediments and Its Implications in Metabarcoding Analyses

Chai,

Liu,

Jia

et al. 2024

IJMS

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The ever-increasing applications of metabarcoding analyses for environmental samples demand a well-designed assessment of the stability of DNA and RNA contained in cells that are deposited or buried in marine sediments. We thus conducted a qPCR quantification of the DNA and RNA in the vegetative cells of three microalgae entrapped in facsimile marine sediments and found that >90% of DNA and up to 99% of RNA for all microalgal species were degraded within 60 days at 4 °C. A further examination of the potential interference of the relic DNA of the vegetative cells with resting cyst detection in sediments was performed via a metabarcoding analysis in artificial marine sediments spiked with the vegetative cells of two Kareniaceae dinoflagellates and the resting cysts of another three dinoflagellates. The results demonstrated a dramatic decrease in the relative abundances of the two Kareniaceae dinoflagellates in 120 days, while those of the three resting cysts increased dramatically. Together, our results suggest that a positive detection of microalgae via metabarcoding analysis in DNA or RNA extracted from marine sediments strongly indicates the presence of intact or viable cysts or spores due to the rapid decay of relic DNA/RNA. This study provides a solid basis for the data interpretation of metabarcoding surveys, particularly in resting cyst detection.

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Bioremediation Using Microalgae and Cyanobacteria and Biomass Valorisation

Cited by 10 publications

References 73 publications

Phycoremediation of Synthetic Dyes Laden Textile Wastewater and Recovery of Bio-Based Pigments from Residual Biomass: An Approach towards Sustainable Wastewater Management

Phycoremediation of Synthetic Dyes Laden Textile Wastewater and Recovery of Bio-Based Pigments from Residual Biomass: An Approach towards Sustainable Wastewater Management

Cyanobacteria: Symbiosis with the Sea - A MiniReview on their Role in Advancing the Blue Economy

DNA and RNA Stability of Marine Microalgae in Cold-Stored Sediments and Its Implications in Metabarcoding Analyses

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