RT info:eu-repo/semantics/article
T1 Valorization of soda lignin from wheat straw solid-state fermentation: Production of oleogels.
A1 Borrero-López, Antonio María
A1 Blánquez Moya, Alba
A1 Valencia Barragán, Concepción
A1 Hernández Cutuli, Manuel Pascual
A1 Arias Fernández, María Enriqueta Juana
A1 Eugenio Martín, María Eugenia
A1 Fillat Latorre, Úrsula
A1 Franco Gómez, José María
K1 Actinobacteria
K1 Castor oil
K1 Diisocyanate
K1 FTIR
K1 Lubricating grease
K1 Rheology
K1 Streptomyces
K1 Química
K1 Chemistry
AB This work describes the solid-state fermentation(SSF) of wheat straw with Streptomyces sp. MDG147 and further soda-pulping process to obtain wheat straw soda lignins(WSLs). Subsequently, these WSLs were NCO-functionalized with 1,6-hexamethylene diisocyanate and then dispersed in castor oil to achieve stable oleogels. The WSLs were characterized using standard analytical methods, gel permeation chromatography, Fourier transform infrared spectroscopy,differential scanning calorimetry, and thermogravimetric analysis. Rheological properties of oleogels were determinedby means of small-amplitude oscillatory shear and viscous flow measurements. The enzymatic profile and production oflignin−carbohydrate complexes were recorded along the growth time of Streptomyces, whose life cycle was achieved after 7 days. NCO-functionalized WSL was able to chemically interact with castor oil via urethane bonding, providing oleogels with suitable rheological characteristics. Linear viscoelastic functions and viscosity values of oleogels were higher when wheat straw was submitted to SSF using Streptomyces, turning out in stronger oleogels.
SN 2168-0485
YR 2018
FD 2018-02-19
LK http://hdl.handle.net/10017/33942
UL http://hdl.handle.net/10017/33942
LA eng
NO Ministerio de Economía, Industria y Competitividad
DS MINDS@UW
RD 26-abr-2024