Entirely solvent-free biocatalytic synthesis of solketal fatty esters from soybean seeds

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2016
Author
Torregrosa García, Rubén
Yara Varón, Edinson
Balcells Fluvià, Mercè
Torres i Grifo, Mercè
Canela i Garayoa, Ramon
Suggested citation
Torregrosa García, Rubén; Yara Varón, Edinson; Balcells Fluvià, Mercè; Torres i Grifo, Mercè; Canela i Garayoa, Ramon; . (2016) . Entirely solvent-free biocatalytic synthesis of solketal fatty esters from soybean seeds. Comptes Rendus Chimie, 2016, vol. 19, núm. 6, p. 749–753. https://doi.org/10.1016/j.crci.2015.12.015.
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Abstract
Solvent-free reactions are the systems of choice in green chemistry. In addition to contributing to lowering the environmental impact of chemical processes, solvent-free systems can reduce production costs, reaction times, and the dimensions of reactors, thereby decreasing investment costs. An improved procedure to prepare 2,2-dimethyl-4-hydroxymethyl-1,3-dioxolane (solketal) fatty esters from soybean seeds has been developed. Yields higher than 90% were achieved by combining 15 h of hydrolysis with 6 h of esterification with a stepwise addition of solketal. The synthesis was performed in a solvent-free medium, and the final extraction was accomplished using supercritical CO2. Hence, we have successfully prepared these esters from soybean beans without using organic solvents. In addition, given the non-toxicity of Rhizopus oryzae and the composition of the remaining solid, it might be used as a raw material for feedstock production.
Note
Workshop on alternative solvents for extraction, purification and formulation (WAS2014)
URI
http://hdl.handle.net/10459.1/57986
DOI
https://doi.org/10.1016/j.crci.2015.12.015
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Comptes Rendus Chimie, 2016, vol. 19, núm. 6, p. 749–753
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