Energetic, economic and environmental assessment of the pyrolysis and combustion of microalgae and their oils

López-González, D.; Puig-Gamero, M.; Acién, F.G.; García-Cuadra, Francisco; Valverde, J.L.; Sánchez-Silva, L.

doi:10.1016/j.rser.2015.07.022

Cited by 59 publications

(23 citation statements)

References 60 publications

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“…Significative differences between the nanovesicles and the free lipids could be also observed in the DTA curves ( Figure 2C ). For the free lipids, in fact, an exothermic peak was observed for 200 < T < 400°C; this can be due to the combustion of some organic fragments/molecules, in agreement with the literature (López-González et al, 2015 ). This peak is not present in the corresponding curve of the nanovesicles, indicating that the formation of the vesicle structure makes the whole system more thermally stable.…”

Section: Resultssupporting

confidence: 91%

Lipid-Based Nanovesicles for Simultaneous Intracellular Delivery of Hydrophobic, Hydrophilic, and Amphiphilic Species

Zacheo

Bizzarro

Blasi

et al. 2020

Front. Bioeng. Biotechnol.

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Lipid nanovesicles (NVs) are the first nanoformulation that entered the clinical use in oncology for the treatment of solid tumors. They are indeed versatile systems which can be loaded with either hydrophobic or hydrophilic molecules, for both imaging and drug delivery, and with high biocompatibility, and limited immunogenicity. In the present work, NVs with a lipid composition resembling that of natural vesicles were prepared using the ultrasonication method. The NVs were successfully loaded with fluorophores molecules (DOP-F-DS and a fluorescent protein), inorganic nanoparticles (quantum dots and magnetic nanoparticles), and anti-cancer drugs (SN-38 and doxorubicin). The encapsulation of such different molecules showed the versatility of the developed systems. The size of the vesicles varied from 100 up to 300 nm depending on the type of loaded species, which were accommodated either into the lipid bilayer or into the aqueous core according to their hydrophobic or hydrophilic nature. Viability assays were performed on cellular models of breast cancer (MCF-7 and MDA-MB-231). Results showed that NVs with encapsulated both drugs simultaneously led to a significant reduction of the cellular activity (up to 22%) compared to the free drugs or to the NVs encapsulated with only one drug. Lipidomic analysis suggested that the mechanism of action of the drugs is the same, whether they are free or encapsulated, but administration of the drugs by means of nanovesicles is more efficient in inducing cellular damage, likely because of a quicker internalization and a sustained release. This study confirms the versatility and the potential of lipid NVs for cancer treatment, as well as the validity of the ultrasound preparation method for their preparation.

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Section: Resultssupporting

confidence: 91%

Lipid-Based Nanovesicles for Simultaneous Intracellular Delivery of Hydrophobic, Hydrophilic, and Amphiphilic Species

Zacheo

Bizzarro

Blasi

et al. 2020

Front. Bioeng. Biotechnol.

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“…[27,706], and forest residues [685,707] have been studied. Despite the increasing research attention on 3G algae biomass, very few LCA studies have been published so far on the environmental profiles of microalgae or algae oil as feedstocks for fast pyrolysis [708,709]. The environmental benefits of using waste feedstocks have also been assessed in a limited number of LCA studies [710,711].…”

Section: Pyrolysis and Upgrading 1g/2g/3g Feedstockmentioning

confidence: 99%

“…In comparison to terrestrial biomass (2G), aquatic biomass (3G) shows a range of desirable traits including no competition for land, high resource-utilization efficiency, high CO2 sequestration capacity, tolerance to a wide range of conditions and seasonal variations, rapid production cycle and high photosynthesis efficiency [743], and high bio-oil yield with superior quality [41,44]. Previous research by Lopez-Gonzalez et al [709] also suggested desirable GHG profiles of biofuel derived from microalgae. It was found that thermochemical conversion process is not a large source of GHG emissions (0.015 -0.020 g CO2 eq./MJ fuel) compared to algae cultivation (0.025 -0.087 g CO2 eq./MJ) or dewatering (0.060 -0.150 g CO2 eq./MJ) processes [708].…”

Section: Implications Of Pyrolysis Feedstock Typementioning

confidence: 99%

The multi-scale challenges of biomass fast pyrolysis and bio-oil upgrading: Review of the state of art and future research directions

Sharifzadeh

Sadeqzadeh

Guo

et al. 2019

Progress in Energy and Combustion Science

361

129

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“…The first correlated with the degradation and combustion of carbohydrate and a portion of protein, whereby both components were thermally degraded in the merged zone, and the second was associated with further decomposition and combustion of protein together with lipid. This observation is thought to be due to the fact that the temperature degradation of lipids is higher than proteins and carbohydrates [ 40 ]. The completion of the second stage resulted in char formation.…”

Section: Resultsmentioning

confidence: 99%

Thermogravimetric analysis of the combustion of marine microalgae Spirulina platensis and its blend with synthetic waste

Sukarni

2020

Heliyon

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The thermal decomposition of the microalgae Spirulina platensis, synthetic wastes, and their blends under an oxidative atmosphere and their kinetic parameters were investigated using a thermogravimetric analyzer. Three stages were observed during the combustion of the blended fuels, and two distinct peaks occurred in the second stage. A kinetic analysis during combustion was studied according to the fitting method proposed by Coats-Redfern and Horowitz-Metzger. The addition of the microalgae to the synthetic waste led to an increase in the apparent activation energies in Zone I in the second stage, whereas an increasing proportion of the microalgae in the blends resulted in decreasing apparent activation energies in Zone II in the second stage.

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Energetic, economic and environmental assessment of the pyrolysis and combustion of microalgae and their oils

Cited by 59 publications

References 60 publications

Lipid-Based Nanovesicles for Simultaneous Intracellular Delivery of Hydrophobic, Hydrophilic, and Amphiphilic Species

Lipid-Based Nanovesicles for Simultaneous Intracellular Delivery of Hydrophobic, Hydrophilic, and Amphiphilic Species

The multi-scale challenges of biomass fast pyrolysis and bio-oil upgrading: Review of the state of art and future research directions

Thermogravimetric analysis of the combustion of marine microalgae Spirulina platensis and its blend with synthetic waste

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