Carbohydrate PolymersPub Date : 2025-11-15Epub Date: 2025-07-29DOI: 10.1016/j.carbpol.2025.124137
J Van Audenhove, C N Ngong, A M Van Loey, M E Hendrickx
{"title":"Studying relaxation phenomena in fruit and vegetable pectin-containing cell wall material: a focus on methodology and composition.","authors":"J Van Audenhove, C N Ngong, A M Van Loey, M E Hendrickx","doi":"10.1016/j.carbpol.2025.124137","DOIUrl":"10.1016/j.carbpol.2025.124137","url":null,"abstract":"<p><p>This study characterizes the relaxation phenomena, particularly the α-relaxation, in the semi-dry alcohol-insoluble residue (AIR) of apple, carrot, and tomato across a relevant moisture content (MC) range. It examines changes in thermal properties via differential scanning calorimetry (DSC), compressibility through thermal mechanical compression testing (TMCT), and viscoelastic properties using dynamic mechanical thermal analysis. Chemical characterization was conducted to link relaxation behavior to polymer composition. DSC showed minimal changes at the relaxation temperature (T<sub>r</sub>), but significant differences in relaxation behavior, represented by the T<sub>r</sub>-line, among botanical origins were observed. A higher ratio of amorphous polysaccharides to crystalline cellulose and greater pectin branching correlated with lower T<sub>r</sub>-values. Mechanical techniques provided clearer signals than DSC due to their direct link to molecular mobility changes with increasing MC or temperature. Except for the carrot AIR T<sub>r</sub>-line obtained by TMCT, the AIR T<sub>r</sub>-lines were not significantly different among the matrices when assessed by mechanical techniques. This study highlights fundamental aspects and challenges in determining relaxation phenomena in AIR and identifies general trends related to composition. The methods and insights can be used in future studies on the role of cell wall material composition in relaxation phenomena and in predicting associated physical collapse phenomena.</p>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124137"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ideal dietary fiber model: Personalized gut microbiota modulation based on structure-function relationships.","authors":"Chengming Wang, Shining Qin, Jiaqi Shi, Junrui Zhu, Xiaoxue Ju, Wenjing Wang, Lijie Yang","doi":"10.1016/j.carbpol.2025.124097","DOIUrl":"10.1016/j.carbpol.2025.124097","url":null,"abstract":"<p><p>Dietary fiber has emerged as a central modulator of gut microbiota composition and host physiology, garnering unprecedented scientific attention. Here, we propose the \"Ideal Dietary Fiber Model\"-a personalized, structure-guided framework designed to precisely shape gut microbial ecosystems and promote host health. Departing from traditional fiber classifications, this model emphasizes the construction of composite fiber formulations based on detailed structural parameters, including monosaccharide composition, glycosidic linkage types, and degree of polymerization. Particular focus is given to oligosaccharides, whose fine structural features confer high selectivity in modulating microbial communities and the production of key metabolites such as short-chain fatty acids, indoles, and neurotransmitter precursors. This review synthesizes recent advances in fiber-microbiota interactions across metabolic, inflammatory, and neurocognitive diseases, including obesity, type 2 diabetes, Non-Alcoholic Fatty Liver Disease, inflammatory bowel disease, colorectal cancer, depression, anxiety, and Alzheimer's disease. While mechanistic insights continue to expand, current evidence remains largely preclinical, highlighting the gap between experimental findings and clinical translation. We argue that integrating microbiome stratification with fiber structure-function databases will be essential for advancing precision nutrition. The Ideal Dietary Fiber Model offers a conceptual and practical foundation for microbiota-targeted dietary design, but its therapeutic potential requires rigorous clinical validation.</p>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124097"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145063045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A fungal polysaccharide from Trametes orientalis: Structural elucidation and multifaceted antitumor mechanisms via metastasis, angiogenesis, and immunomodulation.","authors":"Wenrui He, Haojing Jiang, Mingming Rong, Xinxing Li, Jing Xu, Yuanqiang Guo","doi":"10.1016/j.carbpol.2025.124151","DOIUrl":"10.1016/j.carbpol.2025.124151","url":null,"abstract":"<p><p>Cancer remains a formidable global health challenge, underscoring the critical need for innovative and highly effective therapeutic agents. Fungal polysaccharides have gained increasing attention in anti-cancer drug development due to their remarkable structural diversity and biological activities. This study reports the isolation and comprehensive characterization of TOP60-1, a novel homogeneous polysaccharide with a molecular weight of 1.122 × 10<sup>4</sup> g/mol, meticulously purified from the fruiting bodies of Trametes orientalis (Yasuda) Imaz. Structural analysis revealed TOP60-1 to be a complex heteropolysaccharide comprising various glycosidic linkages, including →4)-β-d-Glcp-(1→, →3)-β-d-Glcp-(1→, →6)-β-d-Glcp-(1→, →3,6)-β-d-Glcp-(1→, β-d-Glcp-(1→, →2,6)-α-d-Galp-(1→, →6)-α-d-Galp-(1→, →4,6)-α-d-Manp-(1→, α-l-Fucp-(1→, 3-OMe-α-l-Fucp-(1 → and →3)-α-l-Fucp-(1→. Biological evaluations demonstrated that TOP60-1 dose-dependently suppressed tumor growth, metastasis, and angiogenesis in a zebrafish xenograft model, induced tumor cell apoptosis, and significantly inhibited tumor cell migration in vitro. Furthermore, immunomodulatory investigations elucidated that TOP60-1 directly interacts with macrophage surface receptors TLR-2 and TLR-4, effectively promoting macrophage M1 polarization and upregulating the expression of critical M1-associated surface markers (CD40, CD80, CD86, MHC-II). Collectively, these findings unequivocally demonstrate that TOP60-1 possesses potent antitumor activity mediated by direct effects synergistic with profound indirect immunomodulatory mechanisms. This highlights its substantial therapeutic potential as a promising novel candidate for tumor immunotherapy.</p>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124151"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carbohydrate PolymersPub Date : 2025-11-15Epub Date: 2025-08-06DOI: 10.1016/j.carbpol.2025.124183
Xinyu Lin, Weike Su, Qihong Zhang
{"title":"Bayesian-assisted mechanochemical synthesis of carboxylated cellulose nanocrystals and its application in Pickering emulsion.","authors":"Xinyu Lin, Weike Su, Qihong Zhang","doi":"10.1016/j.carbpol.2025.124183","DOIUrl":"https://doi.org/10.1016/j.carbpol.2025.124183","url":null,"abstract":"<p><p>The preparation of carboxylated cellulose nanocrystals (CNCs) by ammonium persulfate (APS) oxidation is a relatively common method, but the low reaction efficiency limits its application. In this study, carboxylated CNCs (CNCs-COOH) were efficiently synthesized by mechanochemistry and assisted by the Bayesian Optimization Algorithm (BOA). Under the optimal conditions: reaction temperature of 60 °C, oscillation frequency of 30 Hz, reaction time of 25 min, ball-to-material ratio of 31.8, liquid addition amount of 2 μL/mg, and APS concentration of 0.5 M, the maximum CNCs-COOH yield of 90.45 % was achieved. CNCs-COOH had crystallinity of 78.26 % and particle size of 196.15 ± 18.23 nm, which has better physicochemical property than the carboxylated CNCs (AOCNC) prepared by the conventional solution method. Furthermore, CNCs-COOH was used as suspension stabilizer for the preparation of oil-in-water vitamin A acetate Pickering emulsion, which showed excellent physical and thermal stability. Therefore, mechanochemical APS oxidation is a green and economical alternative to prepare CNCs-COOH, which has prospect in application as suspension stabilizer.</p>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124183"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carbohydrate PolymersPub Date : 2025-11-15Epub Date: 2025-07-24DOI: 10.1016/j.carbpol.2025.124111
Hao Zhang, Hang Wu, Lei Zhang
{"title":"Multifunctional nanocomposite chitosan-based hydrogel promotes healing of infected wounds through sustained release of Zn<sup>2+</sup> and nicotinamide mononucleotide.","authors":"Hao Zhang, Hang Wu, Lei Zhang","doi":"10.1016/j.carbpol.2025.124111","DOIUrl":"10.1016/j.carbpol.2025.124111","url":null,"abstract":"<p><p>Compromised cellular function and bacterial infection are major obstacles to effective wound healing. Simultaneous bacterial elimination and cellular function restoration represent a promising strategy for treating infected wounds. Here, a multifunctional hydrogel (QMPZN) composed of methacrylate anhydride (MA)-grafted quaternary ammonium chitosan (QCS-MA), polyvinyl alcohol (PVA), zeolitic imidazolate framework-8 (ZIF-8), and nicotinamide mononucleotide (NMN, a precursor of NAD<sup>+</sup> involved in cellular metabolism and repair) was developed to achieve combined antibacterial and regenerative effects. The hydrogel rapidly forms in situ under UV light via methacrylate double bond cross-linking, enabling application to irregular wound surfaces. PVA enhances its mechanical strength and tissue adhesion through hydrogen bonding. Benefiting from quaternary ammonium groups and the sustained Zn<sup>2+</sup> release from ZIF-8, QMPZN exhibits strong and durable antibacterial activity. Meanwhile, the controlled release of NMN helps restore cellular function and promote tissue regeneration. In vivo studies showed that QMPZN effectively inhibited bacterial infection and accelerated epithelial regeneration and collagen deposition in infected wounds. These results suggest that QMPZN hydrogel is expected to be a therapeutic platform for the treatment of infected wounds.</p>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124111"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145063066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carbohydrate PolymersPub Date : 2025-11-01Epub Date: 2025-07-29DOI: 10.1016/j.carbpol.2025.123953
Sanjay Ch, Sri Ganga Padaga, Balaram Ghosh, Sanhita Roy, Swati Biswas
{"title":"Corrigendum to \"Chitosan-poly(lactide-CO-glycolide)/poloxamer mixed micelles as a mucoadhesive thermo-responsive moxifloxacin eye drop to improve treatment efficacy in bacterial keratitis\" [Carbohydrate Polymers 312 (2023) 120822].","authors":"Sanjay Ch, Sri Ganga Padaga, Balaram Ghosh, Sanhita Roy, Swati Biswas","doi":"10.1016/j.carbpol.2025.123953","DOIUrl":"10.1016/j.carbpol.2025.123953","url":null,"abstract":"","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"367 ","pages":"123953"},"PeriodicalIF":12.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}