Simultaneous conversion of triacylglycerides and fatty acids into fatty acid methyl esters using organometallic tin(IV) compounds as catalysts

Brito, Yariadner C.; Ferreira, Daví A. C.; Fragoso, Danielle Munick de Albuquerque; Mendes, Paula; Oliveira, C. M.; Meneghetti, Mário R.; Meneghetti, Simoni Margareti Plentz

doi:10.1016/j.apcata.2012.07.040

Cited by 37 publications

(11 citation statements)

References 25 publications

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“…Dibutyltin (DBT) is closely related to our daily life and are widely used as polyvinyl chloride (PVC) plastic stabilizers, pesticides, marine antifouling coatings, and catalysts in rubber, polyurethane (PU), and the biodiesel industry (Brito et al 2012;Harford, O'Halloran, and Wright, 2005;Xu, Zhou, and Zhao, 1990). Unfortunately, lots of studies have shown that DBTs are able to accumulate in and even contaminate the aquatic environment as well as cultivated land and remain unchanged for years.…”

Section: Introductionmentioning

confidence: 99%

Effect of copper nanoparticles and organometallic compounds (dibutyltin) on tilapia fish

Ghais¹,

Bhardwaj²,

Kumbhar³

et al. 2019

JoBAZ

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Background: Mozambique tilapia (Tilapia mossambica) are commonly used in the assessment of aquatic environment quality and also considered as useful bio-indicators during environmental pollution monitoring. Copper-oxide and dibutyltin are used as antifouling underwater hall paints. Copper nanoparticles (Cu-NPs) are serious water pollutants but their impact in fish's performance remains poorly understood. Results: In the present study, we have exposed tilapia, a freshwater edible fish to two different doses (15 mg/L) of Cu-NPs and (2 mg/L) dibutyltin for 6 days. The doses selected were eco-relevant considering the contamination levels of certain water resources. The results indicated that the activity oxidative stress enzymes reduced glutathione (GSH), acetylcholinesterase (AChE), and glutathione-S-transferase (GST) were significantly decreased in the liver, brain, and gills of the treated groups when compared to control. Conclusion: Taken together, the results suggest that short-term exposure of tilapia fish to Cu-NPs and dibutyltin causes oxidative stress and impart serious deleterious effects in the tissues which may affect fish growth and development and causes death. In the case of the gills, liver, and brain when exposed to both concentrations of CuO and dibutyltin (NPs), although the activity of these enzymes showed an inhibition in the liver when exposed to both concentrations of NPs. The present study investigated that CuO-NPs are more toxic than dibutyltin.

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Section: Introductionmentioning

confidence: 99%

Effect of copper nanoparticles and organometallic compounds (dibutyltin) on tilapia fish

Ghais¹,

Bhardwaj²,

Kumbhar³

et al. 2019

JoBAZ

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show abstract

“…Transesterification of crude waste oil gave much lower yields, due to the high levels of free fatty acids in the oil. WCO with high acidity was pretreated before transesterification and biodiesel with low water content and light color can be prepared from the WCOs by using of different catalysts (Lam et al 2010;Sharma and Singh 2011;Brito et al 2012;Melero et al 2012;Patel et al 2013;Lopes et al 2015;Rosa et al 2015).…”

Section: Biodiesel From Unconventional Resourcesmentioning

confidence: 99%

Energy from Waste Materials and Unconventional Sources

Demırbas

2016

Waste Energy for Life Cycle Assessment

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“…WCO with high acidity was pretreated before transesterification and biodiesel with low water content and light color can be prepared from the WCOs by using of different catalysts (Lam et al 2010;Sharma and Singh 2011;Brito et al 2012;Melero et al 2012;Patel et al 2013;Lopes et al 2015;Rosa et al 2015). Water and free acid contents are important factors in the catalytic transesterification of the WCO.…”

Section: Biodiesel From Unconventional Resourcesmentioning

confidence: 99%

Waste Energy for Life Cycle Assessment

Demırbas

2016

Green Energy and Technology

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Simultaneous conversion of triacylglycerides and fatty acids into fatty acid methyl esters using organometallic tin(IV) compounds as catalysts

Cited by 37 publications

References 25 publications

Effect of copper nanoparticles and organometallic compounds (dibutyltin) on tilapia fish

Effect of copper nanoparticles and organometallic compounds (dibutyltin) on tilapia fish

Energy from Waste Materials and Unconventional Sources

Waste Energy for Life Cycle Assessment

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