Combining biocatalysts to achieve new phase change materials. Application to non-edible animal fat
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Otros documentos de la autoría: Gallart-Sirvent, Pau; Martín Llop, Marc; Solé, Aran; Villorbina Noguera, Gemma; Balcells, Mercè; CABEZA, LUISA F.; Canela-Garayoa, Ramon
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https://doi.org/10.1016/j.mcat.2017.10.037 |
Metadatos
Título
Combining biocatalysts to achieve new phase change materials. Application to non-edible animal fatAutoría
Fecha de publicación
2018Editor
ElsevierISSN
2468-8231Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S2468823117305813Palabras clave / Materias
Resumen
The thermal properties of various alkylthreo-9, 10-dihydroxystearates (DHSEs) prepared from non-edible
fat were studied. Non-edible animal fat was hydrolyzed in a 93% yield with R. oryzae resting cells. Crude
unsa ... [+]
The thermal properties of various alkylthreo-9, 10-dihydroxystearates (DHSEs) prepared from non-edible
fat were studied. Non-edible animal fat was hydrolyzed in a 93% yield with R. oryzae resting cells. Crude
unsaturated fatty acids were recovered from the matter liquor resulting from a crystallization performed
to achieve the saturated fatty acids. These unsaturated free fatty acids were epoxidized with 30% H2O2
using immobilized Candida antarctica Lipase-B (CAL-B) as biocatalyst. The epoxy ring was cleaved with
hot water in the presence of tert-butanol (t-BuOH). Pure threo-9, 10-dihydroxystearic acid (DHSA) from
animal fat was recovered by crystallization (51% yield). Subsequently, DHSA was esterified in -limonene
using biocatalysts yielding twelve DHSEs (58–90% yield). Differential scanning calorimetry (DSC) analysis
of these esters revealed potential latent heats ranging from 136.83 kJ kg−1 to 234.22 kJ kg−1 and melting
temperatures from 52.45 ◦C to 76.88 ◦C. Finally, the compounds with enthalpies above 200 kJ kg−1 were
subjected to 100 and 1000 thermal cycles. These experiments showed that these products present good
thermal reliability [-]
Publicado en
Molecular Catalysis 444 (2018)Proyecto de investigación
FP/2007-2013 ; PIRSESGA-2013-610692 (INNOSTORAGE) ; 657466 (INPATH-TES) ; CTQ2015-70982-C3-1-R (MINECO/FEDER) ; ENE2015-64117- C5-1-R (MINECO/FEDER)Derechos de acceso
© 2017 Elsevier B.V. All rights reserved.
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