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

Maria Hasnain, Neelma Munir, Zainul Abideen (), Daniel Anthony Dias, Farheen Aslam and Roberto Mancinelli ()
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Maria Hasnain: Department of Biotechnology, Lahore College for Women University, Lahore 35200, Pakistan
Neelma Munir: Department of Biotechnology, Lahore College for Women University, Lahore 35200, Pakistan
Zainul Abideen: Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi 75270, Pakistan
Daniel Anthony Dias: School of Health and Biomedical Sciences, Discipline of Laboratory Medicine, RMIT University, P.O. Box 71, Bundoora, VIC 3083, Australia
Farheen Aslam: Department of Biotechnology, Lahore College for Women University, Lahore 35200, Pakistan
Roberto Mancinelli: Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, 01100 Viterbo, Italy

Agriculture, 2022, vol. 13, issue 1, 1-25

Abstract: Biofuel generation from algae can be increased by using nanotechnology. The present study emphasizes the use of silver nanoparticles on algae for algal fuel generation along with the impact of nanoparticles on biomass, metabolites and lipid profile. Silver ion amassing was enhanced in each algal species, but maximum phytoremediation was found in Ulothrix sp. Carbohydrates increased 3.2 times in Oedogonium sp., 3.3 times in Ulothrix sp., 3 times in Cladophora sp. and 2.7 times in Spirogyra sp. Additionally, the application of nanoparticles enhanced by 2 times the production of proteins in Oedogonium sp., 1.9 times in Ulothrix sp., 1.9 times in Cladophora sp. and 2.1 times in Spirogyra sp. Finally, the total lipid yield increased 60% DCW in Oedogonium sp., 56% DCW in Ulothrix sp., 58% DCW in Cladophora sp. and 63% DCW in Spirogyra sp. using 0.08 mg/L silver nanoparticle application. The lipids and fatty acid fractions from algae containing high concentrations of C16:0, C18:0 and C18:1 enhanced with silver nanoparticle addition were comparable with EN 14214 and ASTM 6751 biodiesel standards. This study indicates that the uptake of AgNPs can enhance the production of fatty acids and be commercialized as sustainable biodiesel. The algae Ulothrix sp. is evidenced as the best competent feedstock for biofuel production.

Keywords: silver nanoparticles; carbohydrates; proteins; lipids; algae biomass; biodiesel; fuel properties (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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