Applying Silver Nanoparticles to Enhance Metabolite Accumulation and Biodiesel Production in New Algal Resources

Hasnain, Maria; Munir, Neelma; Abideen, Zainul; Dias, Daniel A.; Aslam, Farheen; Mancinelli, Roberto

doi:10.3390/agriculture13010073

Cited by 12 publications

(4 citation statements)

References 51 publications

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“…Thus, stimulatory effects of some nanoparticles on lipid accumulation have been revealed in other algal cultures treated with different types of nanoparticles: Oedogonium sp., Cladophora sp., Ulothrix sp., and Spirogyra sp. using AgNPs ( Hasnain et al, 2023 ); Scenedesmus obliquus exposed to Fe 2 O 3 and Fe 3 O 4 nanoparticles ( He et al, 2017 ; Wang et al, 2021 ); Trachydiscus minutus , Desmodesmus subspicatus and zerovalent iron (ZVI) nanoparticles ( Pádrová et al, 2015 ); Chlorella vulgaris upon influence of TiO 2 nanoparticles and MgNPs ( Kang et al, 2014 ; Sibi et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Effects of citrate-stabilized gold and silver nanoparticles on some safety parameters of Porphyridium cruentum biomass

Rudi

Cepoi

Chiriac

et al. 2023

Front. Bioeng. Biotechnol.

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Introduction: Our research raises the question of how realistic and safe it is to use gold and silver nanoparticles in biotechnologies to grow microalgae, which will later be used to obtain valuable products. To this purpose, it was necessary to assess the influence of 10 and 20 nm Au and Ag nanoparticles stabilized in citrate on the growth of microalga Porphyridium cruentum in a closed cultivation system, as well as some safety parameters of biomass quality obtained under experimental conditions.Methods: Two types of experiments were conducted with the addition of nanoparticles on the first day and the fifth day of the cultivation cycle. Changes in productivity, lipid content, malondialdehyde (MDA), as well as antioxidant activity of microalgae biomass have been monitored in dynamics during the life cycle in a closed culture system.Results: The impact of nanoparticles on the growth curve of microalgae culture was marked by delaying the onset of the exponential growth phase. A significant increase in the content of lipids and MDA in biomass was noted. Excessive accumulation of lipid oxidation products within the first 24 h of cultivation resulted in altered antioxidant activity of red algae extracts.Discussion: Citrate-stabilized gold and silver nanoparticles proved to be a stress factor for red microalga Porphyridium cruentum, causing significant changes in both biotechnological and biomass safety parameters. Addition of Au and Ag nanoparticles during the exponential growth phase of porphyridium culture led to an enhanced lipid accumulation and reduced MDA values in biomass.

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Section: Discussionmentioning

confidence: 99%

Effects of citrate-stabilized gold and silver nanoparticles on some safety parameters of Porphyridium cruentum biomass

Rudi

Cepoi

Chiriac

et al. 2023

Front. Bioeng. Biotechnol.

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“…Mar. Drugs 2024, 22, x 2 of 15 microalgae for biofuel production purposes [10][11][12]. However, this effect is more often a result of the stress caused by high concentrations of these nanoparticles.…”

Section: Quantity Of P Purpureum Cnmn-ar-02 Biomass Produced Under Cu...mentioning

confidence: 99%

“…In the context of applying stimulants to produce higher amounts of biomass with a valuable and predictable biochemical content, nanoparticles of various natures are increasingly being explored from this perspective [8,9]. For example, nanoparticles of Mg, Al, Zn, Cu, Pb, Ag, Fe, Fe 3 O 4 are used as effective stimulants to enhance lipid synthesis in microalgae for biofuel production purposes [10][11][12]. However, this effect is more often Mar.…”

Section: Introductionmentioning

confidence: 99%

Effects of Silver Nanoparticles on the Red Microalga Porphyridium purpureum CNMN-AR-02, Cultivated on Two Nutrient Media

Rudi,

Cepoi,

Chiriac

et al. 2024

Marine Drugs

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The purpose of this study was to examine the influence of 10 and 20 nm nanoparticles (AgNPs) on the growth and biochemical composition of microalga Porphyridium purpureum CNMN-AR-02 in two media which differ by the total amount of mineral salts (MM1 with 33.02 g/L and MM2 with 21.65 g/L). Spectrophotometric methods were used to estimate the amount of biomass and its biochemical composition. This study provides evidence of both stimulatory and inhibitory effects of AgNPs on different parameters depending on the concentration, size, and composition of the nutrient medium. In relation to the mineral medium, AgNPs exhibited various effects on the content of proteins (an increase up to 20.5% in MM2 and a decrease up to 36.8% in MM1), carbohydrates (a decrease up to 35.8% in MM1 and 39.6% in MM2), phycobiliproteins (an increase up to 15.7% in MM2 and 56.8% in MM1), lipids (an increase up to 197% in MM1 and no changes found in MM2), antioxidant activity (a decrease in both media). The composition of the cultivation medium has been revealed as one of the factors influencing the involvement of nanoparticles in the biosynthetic activity of microalgae.

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“…Rana et al [80] reported that using Fe 2 O 3 nanoparticles increased the growth and lipids of Chlorella pyrenoidosa by 33.75% and 15.2%, respectively. Recently, Hasnain et al [81] recorded that lipid content highly significantly accumulated in Oedogonium sp., Ulothrix sp., Cladophora sp., and Spirogyra sp. by 60%, 56%, 58%, and 63%, respectively when exposed to AgNPs.…”

Section: Physiological Responses Of C Chodatii To Different Levels Of...mentioning

confidence: 99%

Lipid Production, Oxidative Status, Antioxidant Enzymes and Photosynthetic Efficiency of Coccomyxa chodatii SAG 216-2 in Response to Calcium Oxide Nanoparticles

Abdel-Kader¹,

Yousef²,

Hossain³

2023

Phyton

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The extensive use of nanoparticles (NPs) in diverse applications causes their localization to aquatic habitats, affecting the metabolic products of primary producers in aquatic ecosystems, such as algae. Synthesized calcium oxide nanoparticles (CaO NPs) are of the scarcely studied NPs. Thus, the current work proposed that the exposure to CaO NPs may instigate metabolic pathway to be higher than that of normally growing algae, and positively stimulate algal biomass. In this respect, this research was undertaken to study the exposure effect of CaO NPs (0, 20, 40, 60, 80, and 100 µg mL −1 ) on the growth, photosynthesis, respiration, oxidative stress, antioxidants, and lipid production of the microalga Coccomyxa chodatii SAG 216-2. The results showed that the algal growth concomitant with chlorophyll content, photosynthesis, and calcium content increased in response to CaO NPs. The contents of biomolecules such as proteins, amino acids, and carbohydrates were also promoted by CaO NPs with variant degrees. Furthermore, lipid production was enhanced by the applied nanoparticles. CaO NPs induced the accumulation of hydrogen peroxide, while lipid peroxidation was reduced, revealing no oxidative behavior of the applied nanoparticles on alga. Also, CaO NPs have a triggering effect on the antioxidant enzymes such as superoxide dismutase, catalase, ascorbate peroxidase, and guaiacol peroxidase. The results recommended the importance of the level of 60 µg mL −1 CaO NPs on lipid production (with increasing percentage of 65% compared to control) and the highest dry matter acquisition of C. chodatii. This study recommended the feasibility of an integrated treatment strategy of CaO NPs in augmenting biomass, metabolic up-regulations, and lipid accumulation in C. chodatii.

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Applying Silver Nanoparticles to Enhance Metabolite Accumulation and Biodiesel Production in New Algal Resources

Cited by 12 publications

References 51 publications

Effects of citrate-stabilized gold and silver nanoparticles on some safety parameters of Porphyridium cruentum biomass

Effects of citrate-stabilized gold and silver nanoparticles on some safety parameters of Porphyridium cruentum biomass

Effects of Silver Nanoparticles on the Red Microalga Porphyridium purpureum CNMN-AR-02, Cultivated on Two Nutrient Media

Lipid Production, Oxidative Status, Antioxidant Enzymes and Photosynthetic Efficiency of Coccomyxa chodatii SAG 216-2 in Response to Calcium Oxide Nanoparticles

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