RT Journal Article
T1 Oleogels and reverse emulsions stabilized by acetylated Kraft lignins
A1 Borrero López, Antonio María
A1 Ling, Wang
A1 Tainise, Lourençon
A1 Valencia Barragán, Concepción
A1 Franco Gómez, José María
A1 Rojas, Orlando J.
A1 Haiming, Li
AB Acetylated Kraft lignins were evaluated for their ability of structuring vegetable oils into oleogels. Microwaveassisted acetylation was used to adjust lignin's degree of substitution according to reaction temperature (130 to 160 ◦C), and its effect in improving the viscoelasticity of the oleogels, which was related to the hydroxyl group content. The results were compared with those obtained by Kraft lignins acetylated using conventional methods at room temperature. A higher microwave temperature resulted in gel-like oil dispersions with improved viscoelastic properties, and stronger shear-thinning character, along with enhanced long-term stability. Lignin nanoparticles structured castor oil by enhancing hydrogen bonding between the hydroxyl groups of the oil and the nanoparticles. The oil structuring capacity of the modified lignins enhanced the stability of water-in-oil Pickering emulsions that resulted from low-energy mixing.
PB Elsevier
SN 0141-8130
YR 2023
FD 2023-05-19
LK https://hdl.handle.net/10272/22309
UL https://hdl.handle.net/10272/22309
LA eng
NO Borrero-López, A. M., Wang, L., Li, H., Lourençon, T. V., Valencia, C., Franco, J. M., & Rojas, O. J. (2023). Oleogels and reverse emulsions stabilized by acetylated Kraft lignins. In International Journal of Biological Macromolecules (Vol. 242, p. 124941). Elsevier BV. https://doi.org/10.1016/j.ijbiomac.2023.124941
NO This work is part of the research project (PID2021-125637OB-I00) funded by MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe” (EU) and the project Grasas lubricantes basadas en materiales lignocelul´osicos y aceites residuales y/o vegetales (ReGrease), funded by C´atedra Fundaci´on CEPSA. A.M.B-L. received a PhD Research Grant from the Ministerio de Educaci´on, Cultura y Deporte (FPU16/03697). The collaboration with the University of Aalto has been possible thanks to the grants EST17/00875 and EST18/00577 from the Ministerio de Educaci´on y Formaci´on Profesional. Funding for open access charge: Universidad de Huelva / CBUA. The financial support is gratefully acknowledged.
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026