Enzymatic synthesis of rapeseed oil-based lubricants

Gryglewicz, S.; Muszyński, Marcin; Nowicki, Janusz

doi:10.1016/j.indcrop.2012.11.038

Cited by 70 publications

(30 citation statements)

References 17 publications

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“…In this case, there were clear differences between the biolubricant obtained by the reaction of castor FAME with 2-ethyl-1 hexanol and the rest of the alcohols. It has already been reported that the number of carbons or branching in the alcohol chain structure could also influence properties such as viscosity [17,25]. However, some authors do not consider this fact as a determinant, finding some functional groups (such as phenyl) more influential [10].…”

Section: Influence Of Alcohol Structure On Biolubricantsmentioning

confidence: 99%

Biolubricants from Rapeseed and Castor Oil Transesterification by Using Titanium Isopropoxide as a Catalyst: Production and Characterization

et al. 2020

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The transesterification of rapeseed and castor oil methyl esters with different alcohols (2-ethyl-1-hexanol, 1-heptanol and 4-methyl-2-pentanol) and titanium isopropoxide as a catalyst, to produce biolubricants, was carried out. Parameters such as temperature, alcohol/methyl ester molar ratio, and catalyst concentration were studied to optimize the process. The reaction evolution was monitored with the decrease in FAME concentration by gas chromatography. In general, the reaction was almost complete in two hours, obtaining over 93% conversions. All the variables studied influenced on the reaction yields. Once the optimum conditions for the maximum conversion and minimum costs were selected, a characterization of the biolubricants obtained, along with the study of the influence of the kind of alcohol used, was carried out. The biolubricants had some properties that were better than mineral lubricants (flash points between 222 and 271 °C), needing the use of additives when they do not comply with the standards (low viscosity for rapeseed biolubricant, for instance). There was a clear influence of fatty acids of raw materials (oleic and ricinoleic acids as majority fatty acids in rapeseed and castor oil, respectively) and the structure of the alcohol used on the final features of the biolubricants.

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Section: Influence Of Alcohol Structure On Biolubricantsmentioning

confidence: 99%

Biolubricants from Rapeseed and Castor Oil Transesterification by Using Titanium Isopropoxide as a Catalyst: Production and Characterization

et al. 2020

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“…Novozym 435 (Candida antarctica) lipase was chosen as a typical successful enzymatic catalyst for transesterification reactions (Linko et al, 1998;Åkerman et al, 2011b;Gryglewicz et al, 2013;Cavalcanti da Silva et al, 2015). In a first set of experiments, the reaction was carried out with the stoichiometric amount of reagents or a slight excess of methyl oleate (oleate/TMP molar ratio = 3.0-3.9) under atmospheric pressure, with 4% w/w of enzyme and 15% w/w of water.…”

Section: Enzymatic Transesterification Of Methyl Oleate With Tmpmentioning

confidence: 99%

“…The range of kinematic viscosities at 40ºC lays from 30 to 50, depending on the starting material. Most of them are between 30 and 40 cSt, Jatropha oil (Nurdin et al, 2015), rapeseed oil (Uosukainen et al, 1998;Gryglewicz et al, 2003;Gryglewicz et al, 2013), olive oil (Gryglewicz et al, 2003), for rubber seed oil (Kamalakar et al, 2013), and even lard (Gryglewicz et al, 2003). Only canola biodiesel leads to a mixture of TMP esters with 40.5 cSt (Sripada et al, 2013) and the maximum value (50.6 cSt) is obtained with an oleic enriched fraction of sal fat oil (Kamalakar et al, 2015).…”

Section: Properties Of the Tmp Fatty Esters From Fish Oilmentioning

confidence: 99%

Bio-lubricants production from fish oil residue by transesterification with trimethylolpropane

Angulo

Fraile

Gil³

et al. 2018

Journal of Cleaner Production

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The fatty acid ethyl esters mixture, a fish oil residue obtained after the extraction of omega-3 polyunsaturated fatty esters, has been converted into mixtures of mono-, di-, and triesters of trimethylolpropane by transesterification at 100-140ºC under vacuum with sodium ethoxide as catalyst. This method has shown to be more efficient than the enzymatic transesterification using commercially available lipases. The crude reaction mixture (84% conversion of ethyl esters), enriched in trimethylolpropane triesters (96% selectivity) was characterized and its properties compared with those of the starting ethyl esters mixture and the trimethylolpropane esters obtained from vegetal sources.

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“…[1][2][3][4][5] Esters are valuable organic compounds which find diverse applications as fragrances, flavours, chemical intermediates, biodiesel and biolubricants. [6][7][8][9][10][11] Proteases are useful for the synthesis of esters (and amides) of amino acids as well as sugars. [12][13][14][15] Essentially, this synthetic approach represents reversal of the hydrolytic reactions which these enzymes catalyse in aqueous buffers.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the catalytic efficiency of subtilisin for transesterification by dual bioimprinting

Mukherjee

Gupta

2015

Tetrahedron Letters

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Enzymatic synthesis of rapeseed oil-based lubricants

Cited by 70 publications

References 17 publications

Biolubricants from Rapeseed and Castor Oil Transesterification by Using Titanium Isopropoxide as a Catalyst: Production and Characterization

Biolubricants from Rapeseed and Castor Oil Transesterification by Using Titanium Isopropoxide as a Catalyst: Production and Characterization

Bio-lubricants production from fish oil residue by transesterification with trimethylolpropane

Enhancing the catalytic efficiency of subtilisin for transesterification by dual bioimprinting

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