The effect of microplastics pollution in microalgal biomass production: A biochemical study

Cunha, César; Lopes, Joana; Paulo, Jorge; Faria, Marisa; Kaufmann, Manfred; Nogueira, Natacha; Ferreira, Artur; Cordeiro, Nereida

doi:10.1016/j.watres.2020.116370

Cited by 36 publications

(5 citation statements)

References 77 publications

(82 reference statements)

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“…Cunha et al performed a biochemical study on the effect of MPs pollution in microalgal biomass production; however, they did not study the effect of MPs contamination on biohydrogen production. Microalga Phaeodactylum tricornutum, which can be used as a biomass for H 2 production and can be converted to biodiesel and bioethanol, was exposed to water contaminated with 0.5 and 50 mg/L of PS and/or PMMA over its full growth cycle.…”

Section: Effect Of Mps On Hydrogen Productionmentioning

confidence: 99%

Effect of Microplastics Pollution on Hydrogen Production from Biomass: A Comprehensive Review

Kaykhaii

Honarmandrad

Gębicki

2023

Ind. Eng. Chem. Res.

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Hydrogen production from biomass and organic wastes is considered as a potential alternative energy source and is known as a clean and CO2-free fuel energy carrier. H2 is considered very promising among the other energy sources; therefore, the effective conversion of biomass and organic solid waste to this secondary energy source is urgently sought. As a result, it is of importance to assess the impact of the existence of microplastics (MPs) pollution in biomass during its fermentation. It was found that, besides the number of plastic particles present in biomass, the size of them plays the most important role in the yield of hydrogen. While plastics in nanoparticle sizes always suppress the production of H2, depending on their concentration, MPs may increase or reduce it. For example, the presence of 60 particles/L of micrometer-sized polyethylene terephthalate reduces hydrogen production by 30%, while 200 particles of it yields 63.6% more hydrogen. This Review examines all available literature on the effects of the presence of various MPs on biohydrogen production.

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Section: Effect Of Mps On Hydrogen Productionmentioning

confidence: 99%

Effect of Microplastics Pollution on Hydrogen Production from Biomass: A Comprehensive Review

Kaykhaii

Honarmandrad

Gębicki

2023

Ind. Eng. Chem. Res.

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“…The impact of MPs on microalgae is also becoming an increasingly important issue of global concern (Cunha et al 2020;Ansari et al 2021). Microalgae are an important source of energy for most marine ecosystems, feeding a wide range of organisms from tiny zooplankton to molluscs and crustaceans (Glibert, 2019).…”

Section: Impacts On Phytoplanktonmentioning

confidence: 99%

Environmental and Morphological Detrimental Effects of Microplastics on Marine Organisms to Human Health

Bhuyan

Rashed-Un-Nabi

Alam

et al. 2022

Preprint

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The ubiquitous presence of microplastics (MPs) in all oceans has become a significant threat to nature as global plastic production continues to increase. Now, and over the next 20 to 30 years, it is the time to address the consequences of the rise of the plastic industry global production of millions of items, ranging from a single pen to automobiles. Inappropriate management, lack of awareness of the harmful effects, reckless universal use, and indiscriminate disposal of plastics have turned the earth into a "plastic planet”. The aim of the present study review is to identify the scenarios for the structure, and functions of MPs and the resulting impacts on marine organisms. The different origins of MPs in the oceans and their negative impacts on marine organisms are critically discussed in this review. Due to their small size, these plastic particles are easily ingested by a wide range of marine organisms (e.g., fish, Mollusca, Arthropoda, Annelida, Echinodermata, Nematoda, phytoplankton, zooplankton, algae, birds, Mammalia, marine reptiles, and corals), posing a threat to their health. The ability of MPs to absorb a variety of hazardous hydrophobic chemicals from the environment allows transfers these toxins to enter directly into the food chain, ultimately becoming a threat to human health. As a result, numerous policies and laws have been created to address the major problems of marine pollution. However, these regulations need to be improved and implemented worldwide. To avert future threats, it is crucial to stop the production of toxic chemicals associated to the production of plastics and replaces them with environmentally suitable alternatives.

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“…Throughout the 14-day experiment, particular attention was paid to pH variations (8.1-10.61). Therefore, the relationship between growth and pH must be analysed (Table S1) [31]. The chlorophyll-a concentration increased exponentially by 2.05 mg/mL in 13 days, higher than chlorophyll b, showing only a maximum value of 0.64 mg/mL after 14 days.…”

Section: Growth Of Chlorella Vulgaris In Batch Culturementioning

confidence: 99%

Toxicity of a Binary Mixture of TiO2 and Imidacloprid Applied to Chlorella vulgaris

Adochite

Andronic

2021

IJERPH

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Nanoparticles have applications in various fields such as manufacturing and materials synthesis, the environment, electronics, energy harvesting, and medicine. Besides many applications of nanoparticles, further research is required for toxic environmental effect investigation. The toxic effect of titanium dioxide nanoparticles on the physiology of the green alga Chlorella vulgaris was studied with a widely used pesticide, imidacloprid (IMD). Chlorella vulgaris was exposed for 120 h in Bold’s basal medium to different toxic compounds, such as (i) a high concentration of TiO2 nanoparticles, 150–2000 mg/L, usually optimised in the photocatalytic degradation of wastewater, (ii) an extremely toxic pesticide for the aquatic environment, imidacloprid, in concentrations ranging from 5 to 40 mg/L, (iii) TiO2 nanoparticles combined with imidacloprid, usually used in a photocatalytic system. The results show that the TiO2 nanoparticles and IMD inhibited Chlorella vulgaris cell growth and decreased the biovolume by approximately 80% when 2 g/L TiO2 was used, meaning that the cells devised a mechanism to cope with a potentially stressful situation; 120 h of Chlorella vulgaris exposure to 40 mg/L of IMD resulted in a 16% decreased cell diameter and a 41% decrease in cell volume relative to the control sample, associated with the toxic effect of pesticides on the cells. Our study confirms the toxicity of nanoparticles through algal growth inhibition with an effective concentration (EC50) value measured after 72 h of 388.14 mg/L for TiO2 and 13 mg/L for IMD in a single-toxic system. The EC50 of TiO2 slowly decreased from 258.42 to 311.11 mg/L when IMD from 5 to 20 mg/L was added to the binary-toxic system. The concentration of TiO2 in the binary-toxic system did not change the EC50 for IMD, and its value was 0.019 g/L. The photodegradation process of imidacloprid (range of 5–40 mg/L) was also investigated in the algal medium incubated with 150–600 mg/L of titanium dioxide.

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The effect of microplastics pollution in microalgal biomass production: A biochemical study

Cited by 36 publications

References 77 publications

Effect of Microplastics Pollution on Hydrogen Production from Biomass: A Comprehensive Review

Effect of Microplastics Pollution on Hydrogen Production from Biomass: A Comprehensive Review

Environmental and Morphological Detrimental Effects of Microplastics on Marine Organisms to Human Health

Toxicity of a Binary Mixture of TiO2 and Imidacloprid Applied to Chlorella vulgaris

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