Biodiesel production from new algal sources using response surface methodology and microwave application

Hasnain, Maria; Abideen, Zainul; Naz, Shagufta; Roessner, Ute; Munir, Neelma

doi:10.1007/s13399-021-01560-4

Cited by 32 publications

(11 citation statements)

References 63 publications

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“…It can be used for algal oil extraction as the microwaves have the ability to penetrate the rigid algal cell wall structure, which cannot be easily broken down by conventional mechanical and chemical methods. When the algal cell is irradiated with microwaves, it leads to rapid heating, which increases the temperature and pressure, resulting in accelerated cell wall degradation and enhanced mass transfer rates [26,35]. The microwaves also enhance the evaporation of methanol, which is a strong microwave absorption material.…”

Section: Figure 2 Microwave Assisted Transesterification Processmentioning

confidence: 99%

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Effect of Photosynthetic Bacteria Based Feedstock and Temperature on Biodiesel Yield Using Microwave Assisted Transesterification With an Application of Box Behnken Supported Response Surface Methodology

Maheswaran¹,

Uthranarayan²

2022

J. Chil. Chem. Soc.

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Algae based third generation biodiesel production is a recent advancement in renewable energy due to its minimal land requirements, cultivation in wastelands etc than food stock based second generation biodiesel production. This paper addresses on the study of the optimum yield of biodiesel produced from oxygenic photosynthetic bacteria-based Spirulina Platensis algae by microwave assisted transesterification. Effect of microwave irradiation time which affects the temperature on the extraction of algal oil and simultaneous in-situ transesterification was investigated for biodiesel production. The response surface methodology using Box Behnken Design was used to analyze constituent parameters like catalyst concentration, alcohol concentration and process para meters like microwave time. Results indicate that microwave assisted transesterification yields at 70.7% of biodiesel production with respect to algae dry weight at an optimum of catalyst concentration of 1.6%, with alcohol concentration of 1:9.7 and microwave irradiation time of 3.2 minutes.

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Section: Figure 2 Microwave Assisted Transesterification Processmentioning

confidence: 99%

“…They found that a higher microwave power yielded better biodiesel yield [29]. Hasnain et al used a Central Composite Design (CCD) to optimize production of biodiesel using microwave assisted transesterification and found that Ulothrix sp gave a biodiesel yield of 88% [30,31].…”

Section: Introductionmentioning

confidence: 99%

Effect of Photosynthetic Bacteria Based Feedstock and Temperature on Biodiesel Yield Using Microwave Assisted Transesterification With an Application of Box Behnken Supported Response Surface Methodology

Maheswaran¹,

Uthranarayan²

2022

J. Chil. Chem. Soc.

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“…In this novel approach, applying precisely controlled temperature and pressure, and microwave irradiation ILs can improve mass transfer by improving solution conductivity. When these two approaches are combined, as in MAILE, higher compound extraction occurs in comparison to conventional extraction procedures [ 25 , 26 ]. Besides, two fundamental phenomena occur: 1) water molecules inside the cell evaporate with the increased temperature generated by microwave irradiation.…”

Section: Introductionmentioning

confidence: 99%

Kinetic and thermodynamic studies of eicosapentaenoic acid extraction from Nannochloropsis oceanica using tetramethyl ammonium chloride and microwave irradiation

et al. 2022

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Microalgae have garnered widespread attention as a sustainable source of pharmaceuticals and nutraceuticals. As for extracting lipids from microalgae, the combination of microwave-assisted extraction (MAE) and ionic liquids (IL) is shown to be promising. However, such an undertaking usually requires a large consumption of expensive ILs. This study innovatively employs tetramethyl ammonium chloride ([TMAm][Cl]) as an additive in water medium to associate with microwave-assisted ionic liquid extraction (MAILE) in extracting lipids from Nannochloropsis oceanica (N. oceanica) microalgae. In extraction, knowledge of reaction kinetics is crucial since it provides the foundation for developing, controlling, and improving the processes of extraction. Herein, using MAILE, lipids are extracted from N. oceanica microalgae and transesterified to eicosapentaenoic acid (EPA). Mass transfer kinetics are, therefore, investigated using the first and second-order rate law and Patricelli’s model. In the development of models, the influence of temperature (60–90°C) and reaction time (1–25 min) on EPA extraction is empirically evaluated. From the thermodynamic study, the positive values of ΔS (+0.10 kJ mol-1K-1) and ΔH (+32.50 kJ mol-1) and the negative value of ΔG (-1.68 to -4.75 kJ mol-1) confirm that this process is endothermic in nature, irreversible and spontaneous. MAILE proves to be a promising approach for the extraction of high-quality EPAs. Due to its low cost, rapid operation, and environmental friendliness, it is seen to be suitable for both pharmaceutical and nutraceutical applications.

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“…Nanoparticles can stimulate the primary metabolite production and enrich lipid sources to enhance biofuel production. To enhance the fatty acid conversion efficacy to biodiesel fuel, the use of nanoparticles is recommended for proper lipid extraction or cell division [3]. The application of nanoparticles in the cultivation medium increases growth, carbon dioxide absorption from the air and light conversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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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.

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Biodiesel production from new algal sources using response surface methodology and microwave application

Cited by 32 publications

References 63 publications

Effect of Photosynthetic Bacteria Based Feedstock and Temperature on Biodiesel Yield Using Microwave Assisted Transesterification With an Application of Box Behnken Supported Response Surface Methodology

Effect of Photosynthetic Bacteria Based Feedstock and Temperature on Biodiesel Yield Using Microwave Assisted Transesterification With an Application of Box Behnken Supported Response Surface Methodology

Kinetic and thermodynamic studies of eicosapentaenoic acid extraction from Nannochloropsis oceanica using tetramethyl ammonium chloride and microwave irradiation

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

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