Chitosan was prepared by alkaline N-deacetylation of β-chitin from squid pens, and N-(2-hydroxy) propyl-3-trimethyl ammonium chitosan chloride (HTCC) derivatives, with different degrees of quaternization (DQ) ranging from 0.77 to 1.06, were synthesized. It was identified by FT-IR, 1H NMR and XRD analysis. All of the HTCC showed good water solubility in a wide pH range. The moisture absorption and retention abilities of all the HTCC were much better than that of the chitosan. The moisture absorption and retention values of all the HTCC at 43% RH for 24 h were above 49% and 92%, respectively. The scavenging ability of HTCC against hydroxyl and ABTS radicals improved with increasing concentration. The effectiveness of HTCC against hydroxyl radicals was lower than that of chitosan. These results indicated that HTCC, which has a much better moisture absorption and retention capacity, may act as a potential moisturizer in vitro.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2014.07.017 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Self-Reactive Carbon Dioxide Absorbent with Sodium Carbonate-Based Hydrogel.
Gels
January 2025
Department of Packaging, Yonsei University, Wonju 26493, Republic of Korea.
Sodium carbonate is an abundant, low-cost, and low-hazard raw material widely used as a food additive and CO absorbent in the food industry. However, its application in food packaging is limited because it is used in solid form, either in sachets or as a compounding ingredient in plastics. Solid sodium carbonate requires an external moisture supply for CO absorption, with its performance dependent on moisture availability.
View Article and Find Full Text PDFImproving the Long-Term Mechanical Properties of Thermoplastic Short Natural Fiber Compounds by Using Alternative Matrices.
Biomimetics (Basel)
January 2025
Macromolecular Chemistry and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 3, 9747 AG Groningen, The Netherlands.
Wood plastic composites (WPCs) offer a means to reduce the carbon footprint by incorporating natural fibers to enhance the mechanical properties. However, there is limited information on the mechanical properties of these materials under hostile conditions. This study evaluated composites of polypropylene (PP), polystyrene (PS), and polylactic acid (PLA) processed via extrusion and injection molding.
View Article and Find Full Text PDFEvaluation of Sericin/Polyvinyl Alcohol Mixtures for Developing Porous and Stable Structures.
Biomimetics (Basel)
January 2025
Agroindustrial Research Group, Department of Chemical Engineering, Universidad Pontificia Bolivariana, Cq. 1 #70-01, Medellín 050031, Colombia.
Fibrous by-products, including defective or double cocoons, are obtained during silk processing. These cocoons primarily contain fibroin and sericin (SS) proteins along with minor amounts of wax and mineral salts. In conventional textile processes, SS is removed in the production of smooth, lustrous silk threads, and is typically discarded.
View Article and Find Full Text PDFCo-cultivation of Komagataeibacter sp. and Lacticaseibacillus sp. strains to produce bacterial nanocellulose-hyaluronic acid nanocomposite membranes for skin wound healing applications.
Int J Biol Macromol
January 2025
Unimore Microbial Culture Collection Laboratory, Department of Life Sciences, University of Modena and Reggio Emilia, 42124 Reggio Emilia, Italy. Electronic address:
Inspired by natural microbial cooperation, a co-culture approach was used to synthesize bacterial nanocellulose (BNC)-based nanocomposites for potential wound healing applications. By co-culturing either Komagataeibacter xylinus (K1G4) or the never tested strain K. rhaeticus (K2G46) with the hyaluronic acid (HA)-producer Lacticaseibacillus casei UMCC 2535, two BNC-HA nanocomposites were obtained (C1-K1 and C2-K2).
View Article and Find Full Text PDFFabrication of oat β-glucan-starch composite systems by sequential extraction as batters for deep-fried mushrooms to prevent oil penetration.
Food Chem
January 2025
Department of Food Science, College of Light Industry, Liaoning University, Shenyang 110031, Liaoning Province, China; State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning Province, China; State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, Jiangxi Province, China. Electronic address:
Deep-fat frying (DF) of mushrooms is favored by consumers due to its appealing sensory characteristics. However, their high oil absorption can lead to obesity and elevated cholesterol levels. Therefore, developing healthy food coatings as oil barriers and water-holding layers is essential.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!