Panji Setya Utama Putra¹, Damar Rastri Adhika^2,3,*, Lia Amelia Tresna Wulan Asri⁴, Suprijadi Suprijadi^3,5

Journal of Renewable Materials, Vol.13, No.6, pp. 1043-1070, 2025, DOI:10.32604/jrm.2025.02024-0002 - 23 June 2025

Abstract The continuous increase in petroleum-based plastic food packaging has led to numerous environmental concerns. One effort to reduce the use of plastic packaging in food is through preservation using biopolymer-based packaging. Among the many types of biopolymers, chitosan is widely used and researched due to its non-toxic, antimicrobial, and antifungal properties. Chitosan is widely available since it is a compound extracted from seafood waste, especially shrimps and crabs. The biodegradability and biocompatibility of chitosan also showed good potential for various applications. These characteristics and properties make chitosan an attractive biopolymer to be implemented as food… More > Graphic Abstract

Jun-Jie Yang¹, Ran An¹, Jing-Heng Nie¹, Hao-Miao Ma¹, Yu-Qing Yan¹, Yuan-Ru Guo^1,*, Qing-Jiang Pan^2,*

Journal of Renewable Materials, Vol.13, No.5, pp. 885-900, 2025, DOI:10.32604/jrm.2025.02024-0066 - 20 May 2025

Abstract To achieve the sustainable development and carbon neutral target, biomass chitosan (CS) was used to prepare N,S-doped biochar (NSB) with the assistance of sodium dodecyl benzene sulfonate (SDBS). The synthetic route was developed, which does not require the activation that is frequently-used for active carbon materials. By manipulating their interaction, SDBS was deposited with CS in neutral and basic conditions. Subsequent calcination successfully has access to NSB. It features with hierarchical porous structure and abundant functional groups. The dually-doped NSB bears excellent adsorption performance towards chlortetracycline (CTC). The adsorption capacity reaches 101.3 mg g⁻¹ within 4 More >

Belkis Sulbarán-Rangel^1,*, Jorge Armando Caldera Siller¹, Salvador García Enríquez², José Anzaldo-Hernandez², Jenny Arratia-Quijada³, Marianelly Esquivel Alfaro⁴

Journal of Renewable Materials, Vol.13, No.5, pp. 849-863, 2025, DOI:10.32604/jrm.2025.02024-0061 - 20 May 2025

Abstract In this research, the antibacterial properties of a composite material prepared from agave bagasse cellulose fibers doped with silver nanoparticles and chitosan were studied. The development of composite materials with antibacterial properties and environmentally friendly based on cellulose fibers from agave bagasse with silver nanoparticles prepared by green synthesis and chitosan from shrimp waste enhances the value of these agro-industrial wastes and offers the opportunity for them to have biomedical applications since these raw materials have been poorly reported for this application. The antibacterial properties of chitosan and silver nanoparticles are already known. However, the… More > Graphic Abstract

Alexis Salazar-Navarro¹, Víctor Ruíz-Valdiviezo², José Joya-Dávila¹, Daniel González-Mendoza^1,*, Olivia Tzintzun-Camacho¹, Ulin Basilio-Cortes¹, Dagoberto Duran-Hernández¹, Henry López-Lopez¹, Onecimo Grimaldo-Juárez¹

Phyton-International Journal of Experimental Botany, Vol.94, No.3, pp. 641-655, 2025, DOI:10.32604/phyton.2025.062871 - 31 March 2025

Abstract The biochemical response of Coffea arabica var. Borbon to chitosan and chitosan oligosaccharides (COS) was evaluated in one-year-old plants under greenhouse conditions. COS solutions were synthesized through chemical and physical hydrolysis using acetic acid, hydrogen peroxide, and microwave irradiation. The obtained COS had an average molecular weight (Mw) of 3549.90 ± 0.33 Daltons (Da), a deacetylation degree (DD) of 76.64 ± 1.12%, and a polymerization degree (PD) of 18.91 ± 0.0018. Solutions of chitosan and COS were applied to C. arabica var. Borbon at concentrations of 0.25, 0.5, and 1 wt%. The experimental design was conducted using… More >

Ulla Milbreta^1,2, Laura Andze¹, Juris Zoldners¹, Ilze Irbe¹, Marite Skute¹, Inese Filipova^1,*

Journal of Renewable Materials, Vol.13, No.3, pp. 583-597, 2025, DOI:10.32604/jrm.2024.057663 - 20 March 2025

Abstract This study investigated the potential of locally sourced mushrooms as a sustainable alternative to marine-derived chitosan in papermaking. Chitosan was extracted from four local (Boletus edulis, Suillus luteus, Leccinum aurantiacum, Suillus variegatus), one commercially available (Agaricus bisporus) and one laboratory-grown (Phanerochaete chrysosporium) fungal species. Paper handsheets were prepared using either 100% regenerated paper or a 50/50 blend of regenerated paper and hemp fibres. 2.5% chitosan (based on dry mass) was incorporated into the paper mass, using chitosan sourced from B. edulis, A. bisporus, P. chrysosporium, and crustacean chitosan. Fungal chitosan sources were selected based on multiple factors. B. edulis exhibited the highest chitosan yield… More >

JI-SU HAN¹, HYE-JIN BOO¹, JIN WON HYUN¹, HEESANG SONG², IN-YOUB CHANG³, SANG-PIL YOON^1,4,*

Oncology Research, Vol.33, No.4, pp. 873-884, 2025, DOI:10.32604/or.2024.052003 - 19 March 2025

Abstract Background: Chitosan oligosaccharide (COS) is the major degradation product of chitosan by enzymatic processes. COS, with complete water solubility, exerts significant biological effects, including anti-cancer activity. We investigated the anti-tumor effects of COS on colorectal cancer as effective therapeutic methods with low side effects are lacking. Methods: COS was obtained from low molecular weight chitosan by an enzymatic method and the anti-cancer effects were measured by cell viability assay, flow cytometry analysis, Western blotting, and xenograft. Results: COS suppressed the proliferation of SNU-C5 cells compared to other colorectal cancer cells, but higher concentrations were required in… More > Graphic Abstract

GAMALELDIN I. HARISA^1,*, RIYAD F. ALZHRANI¹, ABDULRAHMAN A. ALLUHAIDAN¹, SULTAN M. ALAMRI¹, AHMED H. BAKHEIT², HANADI H. ASIRI², SABRY M. ATTIA³

Oncology Research, Vol.33, No.2, pp. 477-492, 2025, DOI:10.32604/or.2024.053337 - 16 January 2025

Abstract Background: Hepatocellular carcinoma (HCC) is a health problem due to multi-drug resistance (MDR). Codelivery of multiple oncotherapy in one cargo as chimeric cancer therapy (CCT) is suggested as a solution for MDR. This study aims to engineer chitosan-coated nanostructure lipid carriers (NLCs) loaded with gefitinib (GF) and simvastatin (SV) as CCT for HCC. Methods: Both GF and SV-loaded nanostructure lipids carriers (GFSVNLC) and chitosan-capped GF and SV-loaded nanostructure lipids carriers (CGFSVNLC) formulations were assembled by top-down techniques. Moreover, particle size (PS), zeta potential (ZP), and polydispersity index (PDI) were measured by Zetasizer. The biosafety of… More > Graphic Abstract

Clara Pastor, Chelo González-Martínez, Maite Cháfer, Amparo Chiralt^*

Journal of Renewable Materials, Vol.12, No.12, pp. 1949-1962, 2024, DOI:10.32604/jrm.2024.056404 - 20 December 2024

Abstract Chitosan films with propolis aqueous extract were obtained in order to improve the antioxidant capacity of the materials. Likewise, oleic acid (OA) was also incorporated to enhance the film hydrophobicity, with and without previous infusion with propolis, to extract other potentially active compounds. The propolis extracts and the chitosan film-forming dispersions were characterised as to their particle size distribution, zeta potential and rheological behaviour. Chitosan-based films with aqueous extract and with oleic acid, containing or not propolis compounds, were obtained and characterised as to their microstructure, mechanical, barrier and optical properties and antioxidant capacity in… More > Graphic Abstract

Ahmed Mahmoud Ismail^1,2,3,*, Eman Said Elshewy³, Isra H. Ali^4,5, Naglaa Abd Elbaki Sallam Muhanna³, Eman Yehia Khafagi³

Phyton-International Journal of Experimental Botany, Vol.93, No.11, pp. 2787-2811, 2024, DOI:10.32604/phyton.2024.057518 - 30 November 2024

Abstract Rhizoctonia solani Kühn and Sclerotium rolfsii Sacc. are the primary soil-borne plant diseases responsible for significant reductions in global crop yields. The primary goal of this study was to investigate the antifungal potentials of clove essential oil (CEO), nanoemulsion form (CEONE) and chitosan/nanoemulsion nanocomposite (CS/CEONE) against R. solani and S. rolfsii through in vitro and in vivo trials. Both CEONE and CS/CEONE were prepared and investigated for their physical chemical and morphological characterization. The poisoned medium method was utilized to evaluate the inhibitory effects of CEO, CEONE and CS/CEONE on the mycelial growth and enzymatic activity of R. solani and S. rolfsii. The… More >

Yifan Sun¹, Yuanyuan Zhang^1,2, Ziyi Tian¹, Hailang Liu¹, Siying Chen¹, Xujuan Huang^1,*, Zhaosheng Cai¹, Bo Fang³

Journal of Renewable Materials, Vol.12, No.11, pp. 1837-1856, 2024, DOI:10.32604/jrm.2024.055933 - 22 November 2024

Abstract As oil is now an important resource for the survival and development of mankind, the consumption of oil continues to increase each year, and there have been a number of major oil spills in history, such as the oil spill from the Deepwater Horizon drilling rig. Therefore, oil spills during storage and transportation have become an issue of serious concern. Current methods such as incineration and chemical methods cause secondary environmental pollution and fail to enable resource recovery. The adsorption method by porous materials has attracted worldwide attention due to its simplicity, portability, and efficiency.… More > Graphic Abstract