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In this study, core-shell biopolymer nanoparticles were fabricated for the encapsulation and delivery of curcumin using a pH-driven method. The influences of the coating composition on the physicochemical properties and curcumin release characteristics of the core-shell nanoparticles were studied. Fourier transform infrared spectroscopy and X-ray diffraction analyses indicated that curcumin was encapsulated in an amorphous state inside the nanoparticles. Particle size and ζ-potential measurements indicated that the biopolymer nanoparticles were relatively stable under different environmental conditions: long term storage, heating, pH changes and salt. The DPPH radical scavenging activity of the curcumin was increased after encapsulation within the nanoparticles, whereas the gastrointestinal release of curcumin was prolonged. These results were attributed to the ability of alginate and NaCas to form a thick layer around the nanoparticles, which increased the steric and electrostatic repulsion between them, as well as inhibiting the release of curcumin.
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http://dx.doi.org/10.1016/j.foodchem.2021.129686 | DOI Listing |
Naturwissenschaften
September 2025
Department of Biomedical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India.
Wounds with extensive tissue damage are highly susceptible for microbial infections delaying the process of wound healing. Currently, biomaterials with therapeutic molecules emerged as key players in wound repairing. This work developed a novel collagen-based hydrogel loaded with allicin and silver nanoparticles.
View Article and Find Full Text PDFFood Res Int
November 2025
Dairy Research Department, Food Technology Research Institute, ARC, Giza 12619, Egypt.
Domiati cheese, one of the most popular soft white cheeses, is particularly susceptible to microbial deterioration due to its high moisture content and low salt concentration. This study assesses the effectiveness of a new edible coating made from carboxymethyl chitosan nanoparticles loaded with pomegranate peel extract (CCS LP) in increasing the shelf life of Domiati cheese. The study compares CCS LP's performance to pomegranate peel extract (PPE) and carboxymethyl chitosan nanoparticles (CCS NPs) alone.
View Article and Find Full Text PDFFood Res Int
November 2025
Department of Food Science and Technology, College of Agricultural and Environmental Sciences, University of Georgia, Griffin, GA 30223, USA. Electronic address:
Turmeric-derived curcumin offers various health benefits but has poor bioavailability due to low water solubility and rapid gastrointestinal degradation. A recently proposed raw-to-nano strategy enables the direct formulation of turmeric nanoparticles from raw turmeric, using inherent biopolymers to encapsulate and protect curcumin. However, it remains unclear how these nanoparticles enhance gastrointestinal bioavailability and how food matrices influence this process.
View Article and Find Full Text PDFFood Res Int
November 2025
Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Minjiang University, Fuzhou, China. Electronic address:
This study employed high-pressure microfluidization (HPM) to facilitate the Maillard reaction between quinoa protein (QP) and dextran (DX), systematically examining the effects of various pressures on the conjugate's physicochemical properties. Fourier transform infrared spectroscopy confirmed the formation of QP-DX conjugates, characterized by a new peak at 1149 cm (covalent CN bond). Secondary and tertiary structure analyses revealed that HPM-assisted Maillard reaction partially unfolded QP molecules, enhancing conformational flexibility and interfacial properties.
View Article and Find Full Text PDFBiomacromolecules
September 2025
Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 58, Stockholm 10044, Sweden.
Lignin, traditionally considered a low-value byproduct of the pulp and paper industry, has gained significant attention in recent years as a sustainable precursor for the development of functional materials. This paradigm shift is driven by recent studies exploring the structure-property-performance relationships of lignin-based functional materials, which have provided valuable insights for selective chemical functionalization or pretreatment of lignin. Furthermore, the use of complementary analytical techniques has helped to shed light into lignin's complex and heterogeneous structure, opening new avenues for chemical modification.
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