Magnetic particles in algae biotechnology: recent updates

Šafařı́k, Ivo; Baldíková, Eva; Procházková, Jitka; Pospíšková, Kristýna

doi:10.1007/s10811-020-02109-0

Cited by 10 publications

(2 citation statements)

References 75 publications

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“…The magnetically modification of microalgae with magnetic nano- and micro particles have been used in a variety of algae biotechnology research areas, including the removal of HMs ions ( Safarik et al., 2020 ). According to Lalhmunsiama et al.…”

Section: Future Outlook For Enhancing the Phycoremediation Processmentioning

confidence: 99%

Phycoremediation mechanisms of heavy metals using living green microalgae: physicochemical and molecular approaches for enhancing selectivity and removal capacity

Danouche

Ghachtouli

Arroussi

2021

Heliyon

139

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Heavy metal (HM) contamination of water bodies is a serious global environmental problem. Because they are not biodegradable, they can accumulate in food chains, causing various signs of toxicity to exposed organisms, including humans. Due to its effectiveness, low cost, and ecological aspect, phycoremediation, or the use of microalgae's ecological functions in the treatment of HMs contaminated wastewater, is one of the most recommended processes. This study aims to examine in depth the mechanisms involved in the phycoremediation of HMs by microalgae, it also provides an overview of the prospects for improving the productivity, selectivity, and cost-effectiveness of this bioprocess through physicochemical and genetic engineering applications. Firstly, this review proposes a detailed examination of the biosorption interactions between cell wall functional groups and HMs, and their complexation with extracellular polymeric substances released by microalgae in the extracellular environment under stress conditions. Subsequently, the metal transporters involved in the intracellular bioaccumulation of HMs as well as the main intracellular mechanisms including compartmentalization in cell organelles, enzymatic biotransformation, or photoreduction of HMs were also extensively reviewed. In the last section, future perspectives of physicochemical and genetic approaches that could be used to improve the phytoremediation process in terms of removal efficiency, selectivity for a targeted metal, or reduction of treatment time and cost are discussed, which paves the way for large-scale application of phytoremediation processes.

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Section: Future Outlook For Enhancing the Phycoremediation Processmentioning

confidence: 99%

Phycoremediation mechanisms of heavy metals using living green microalgae: physicochemical and molecular approaches for enhancing selectivity and removal capacity

Danouche

Ghachtouli

Arroussi

2021

Heliyon

139

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“…Several procedures can be employed for magnetic modification of marine-based biomass. Usually, magnetic iron oxide nano-and microparticles (Laurent et al, 2008) are used as magnetic labels for marine biomass modification (Safarik et al, 2016b(Safarik et al, , 2018(Safarik et al, , 2020a. Magnetically modified Sargassum horneri biomass was employed to remove several organic dyes (Angelova et al, 2016), while Sargassum swartzii modified with nanoscale zero-valence iron particles was used for crystal violet biosorption (Jerold et al, 2017).…”

Section: Biosorbentsmentioning

confidence: 99%

Valorization of Marine Waste: Use of Industrial By-Products and Beach Wrack Towards the Production of High Added-Value Products

et al. 2021

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Biomass is defined as organic matter from living organisms represented in all kingdoms. It is recognized to be an excellent source of proteins, polysaccharides and lipids and, as such, embodies a tailored feedstock for new products and processes to apply in green industries. The industrial processes focused on the valorization of terrestrial biomass are well established, but marine sources still represent an untapped resource. Oceans and seas occupy over 70% of the Earth’s surface and are used intensively in worldwide economies through the fishery industry, as logistical routes, for mining ores and exploitation of fossil fuels, among others. All these activities produce waste. The other source of unused biomass derives from the beach wrack or washed-ashore organic material, especially in highly eutrophicated marine ecosystems. The development of high-added-value products from these side streams has been given priority in recent years due to the detection of a broad range of biopolymers, multiple nutrients and functional compounds that could find applications for human consumption or use in livestock/pet food, pharmaceutical and other industries. This review comprises a broad thematic approach in marine waste valorization, addressing the main achievements in marine biotechnology for advancing the circular economy, ranging from bioremediation applications for pollution treatment to energy and valorization for biomedical applications. It also includes a broad overview of the valorization of side streams in three selected case study areas: Norway, Scotland, and the Baltic Sea.

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