Chemical modification of Opuntia ficus-indica mucilage: characterization, physicochemical, and functional properties

The objective of the work was preparation and characterization of novel biomaterial produced by modification of the mucilage of nopal acylated with lauric acid and to increase the knowledge and better understanding about its relationship with the techno-functional properties. Hydrophobic mucilage wa...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2023-08, Vol.80 (8), p.8783-8798
Main Authors: García-Barradas, Oscar, Esteban-Cortina, Alejandro, Mendoza-Lopez, María R., Ortiz-Basurto, Rosa I., Díaz-Ramos, Dafne I., Jiménez-Fernández, Maribel
Format: Article
Language:English
Subjects:
Acylation
Biomedical materials
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Ethanol
Food
Food packaging
Lauric acid
NMR
Nuclear magnetic resonance
Organic Chemistry
Original Paper
Pharmaceuticals
Physical Chemistry
Polymer Sciences
Retention
Soft and Granular Matter
Software
Surface tension
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Summary:The objective of the work was preparation and characterization of novel biomaterial produced by modification of the mucilage of nopal acylated with lauric acid and to increase the knowledge and better understanding about its relationship with the techno-functional properties. Hydrophobic mucilage was obtained, and its structural features were elucidated and confirmed by FTIR, X-ray diffraction, and 1 H NMR. Modified mucilage exhibited significantly different physicochemical and functional properties compared to native mucilage. The modified mucilage was less soluble (15.65–16.99%), had lower water holding capacity (5.59–13.45 g/g), and exhibited greater oil holding capacity (4.47 g/g) than the native mucilage; in addition, it showed a surface tension of 57.2 mN/m, which correspond to a critical micellar concentration of 0.023 mg/mL. Acylated mucilage exhibited the highest foaming capacity (124.16%) at pH 10. This study demonstrates that the acylation of mucilage with lauric acid modifies the physicochemical and functional properties of mucilage from Opuntia ficus-indica and suggests applications in the food, pharmaceutical, or packaging industries.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-022-04474-x