Jin Shang^1,#, Weimin Zhang^2,#, Landuo Zhang¹, Xiangwen Li¹, Qi Wang¹, Peng Zhao³, Liangliang Duan^1,*

Journal of Renewable Materials, DOI:10.32604/jrm.2026.02025-0124

Abstract Wound healing is a complex and dynamic process essential for restoring the integrity of damaged skin. It requires wound dressings that actively regulate the wound microenvironment by preventing infection, maintaining moisture balance, allowing gas exchange, and managing exudate. Natural polysaccharides, such as konjac glucomannan (KGM), chitosan, and cellulose, are well suited to this role because of their biocompatibility, biodegradability, and intrinsic bioactivity. Extensive research has focused on developing polysaccharide-based wound dressings with enhanced functionality to promote healing. This review examines recent scientific research published mostly in the past five years on the development and application… More > Graphic Abstract

Megabi Adane Yizengaw^1,*, Alehegn Atalay Birlie¹, Tamerat Tesfaye², Rajan Katrikan¹, Eldana Bizuneh Cheklie¹, Zelalem Girma¹

Journal of Renewable Materials, DOI:10.32604/jrm.2025.02025-0175

Abstract Grape by-product of the wine industry, rich in polyphenols, tannins, lignin, and natural waxes, the chemical constituents grape skins 45%–55%, seeds 25%–35%, and stems or stalks 25%–35% weight of grape provide intrinsic cross-linking, mechanical reinforcement, antioxidant activity, and water resistance, closely replicating the effects of conventional vegetable tanning without using toxic chemicals. This review comprehensively examines current eco-friendly extraction methods to isolate bioactive compounds, as well as fiber modification techniques to improve polymer compatibility. Composite fabrication involves blending processed grape waste fibers with bio-based polymers and renewable plasticizers to produce materials exhibiting competitive tensile strength,… More >

Adib Hafiizhullah Mohamad Prim Nasir^1,2, Mohd Nurazzi Norizan^1,2,3,*, Nur Izzaati Saharudin^1,2, Sumarni Mansur^1,2

Journal of Renewable Materials, DOI:10.32604/jrm.2025.02025-0156

Abstract Plant-based starch has emerged as a promising natural binder in biocomposites owing to its biodegradability, renewability, and functional adaptability. This study critically reviews the extraction, modification, and performance of starches derived from sources such as corn, potato, and cassava, with particular attention to their calorific behaviour as measured through bomb calorimetry. Calorimetric analysis provides insight into the energy density and combustion efficiency of starch binders, parameters that influence both processing and End-of-life valorisation of biocomposites. Through physical, chemical, enzymatic, and genetic modifications, the inherent limitations of native starch such as moisture sensitivity and low mechanical More > Graphic Abstract

Belén Rovira^1,*, Aude Chabrelie¹, Sauro Bianchi², Frédéric Pichelin¹

Journal of Renewable Materials, DOI:10.32604/jrm.2025.02025-0173

Abstract The construction sector is facing significant challenges in transitioning to a defossilised system. While wood-based products have considerable potential, reliance on adhesives derived from fossil fuels poses significant sustainability concerns. Tannin-based adhesives present a compelling bio-based alternative, offering advantageous bonding properties with the potential to reduce toxicity, minimise fossil resource use, and enhance end-of-life scenarios. Despite extensive research demonstrating the technical potential of tannin-based adhesives, industrial adoption remains limited—partly due to the paucity of studies addressing their environmental impacts. The present study investigates the use of tannin-based adhesives in the production of interior-grade plywood, employing… More >

Fitra Yurid^1,2, Nadiatus Silmi³, Heni Rachmawati^4,5, Nanda Nagara², Riyanti Ekafitri⁶, Athanasia Amanda Septevani^2,7,*

Journal of Renewable Materials, DOI:10.32604/jrm.2025.02025-0118

Abstract This study investigates the potential of starch extracted from underutilized agro-industrial resources as non-food-competing raw materials for the development of flexible bioplastics for food packaging applications. Starch was extracted from three biomass sources: rubber cassava (Manihot glaziovii), banana stem, and banana peel from Ambonese banana (Musa acuminata L.). Rubber cassava starch (S_RC) exhibited the highest starch yield (50.68 ± 0.28%), significantly surpassing banana stem (S_BS, 14.20 ± 0.25%) and banana peel (S_BP, 3.07 ± 0.15%). The amylose contents of S_RC, S_BS, and S_BP were 28.18%, 52.80%, and 56.57%, respectively, while their amylopectin contents were 71.83%, 47.20%, and 43.43%. FTIR spectra… More >

I. Nur Azreena^*, H. A. Aisyah, A. W. Noorshamsiana

Journal of Renewable Materials, DOI:10.32604/jrm.2025.02025-0178

Abstract This study examined the impact of various pre-treatment techniques on the physical and mechanical characteristics of particleboards derived from oil palm trunks (OPT). Thermal and chemical pre-treatments of the fibers, including hot water, sodium hydroxide (NaOH), and acetic acid, were applied prior to board production. In addition, antifungal agents were incorporated as supplementary additives during the manufacturing process at varying percentages to evaluate their effect on panel performance. Morphology of the treated OPT fibers was examined, and panel properties such as thermal behavior, bending strength, bonding strength, and dimensional stability were evaluated. Statistically significant improvements (p… More >

José Marcelo Faria de Queiroz Júnior¹, Nathália Ramos de Melo^2,3, Ulisses Oliveira Costa¹, Letícia Vitorazi^1,*, Flavia Lega Braghiroli^4,*

Journal of Renewable Materials, DOI:10.32604/jrm.2025.02025-0163

Abstract The development of sustainable materials has encouraged the use of biopolymers as alternatives to synthetic polymers. Polymeric films have stood out for their high potential in environmentally sustainable applications. Conventional cellulose acetate (CA)-based films are attractive due to their biodegradability and film-forming ability. However, their functional performance often requires enhancement through the incorporation of additives. In this context, two bio-based additives were investigated: condensed tannin (0%, 5% and 10%wt.), a natural polyphenol known for its antioxidant and antimicrobial properties, and nanocrystalline cellulose (CNC) (0%, 0.5% and 1%wt.), which act as reinforcing agents to improve mechanical… More > Graphic Abstract

Herlina Marta¹, Novita Indrianti^2,*, Allifiyah Josi Nur Aziza³, Enny Sholichah⁴, Titik Budiati³, Achmat Sarifudin⁵, Yana Cahyana¹, Nandi Sukri¹, Aldila Din Pangawikan¹

Journal of Renewable Materials, DOI:10.32604/jrm.2025.02025-0145

Abstract Corn starch (CS) is a renewable, biodegradable polysaccharide valued for its film-forming ability, yet native CS films exhibit low mechanical strength, high water sensitivity, and limited thermal stability. This study improves CS-based films by blending with poly(vinyl alcohol) (PVA) or glycerol (GLY) and using citric acid (CA) as a green, non-toxic cross-linker. Composite films were prepared by casting CS–PVA or CS–GLY with CA at 0%–0.20% (w/w of starch). The influence of CA on physicochemical, mechanical, optical, thermal, and water barrier properties was evaluated. CA crosslinking markedly enhanced the tensile strength, water resistance, and thermal stability More > Graphic Abstract

Siti Norasmah Surip¹, Wan Nor Raihan Wan Jaafar^1,*, Jaka Fajar Fatriansyah², Ing Kong³

Journal of Renewable Materials, DOI:10.32604/jrm.2025.02025-0182

Abstract Most studies on kenaf fibre composites focus on the bast due to its higher fibre yield and strength, while the core is often neglected. In this work, Polylactic Acid (PLA) matrix was reinforced with both kenaf bast and core fibres at a 49:1 wt% ratio. The fibres were chemically treated and cryo-crushed to improve bonding and dispersion. Mechanical testing revealed that treated Kenaf Core Composites (KCC) exhibited comparable flexural and impact properties to Kenaf Bast Composites (KBC), with flexural strengths of 46.19 and 46.52 MPa, respectively, and impact strengths of 5.8 and 4.4 J/m. Meanwhile, More >

Nur ‘Aisyah Ar-Raudhoh Mohammad Tahar¹, Muhammad Haziq Mohd Fadzli¹, Siti Nur Liyana Mamauod^1,2,*, Nahrul Hayawin Zainal³

Journal of Renewable Materials, DOI:10.32604/jrm.2025.02025-0177

Abstract The palm oil industry is a major contributor to Malaysia’s economy, but its huge production has generated large amounts of oil palm biomass, particularly palm kernel shell (PKS), which poses environmental challenges if not properly managed. Converting PKS into biochar (PKSB) and activated carbon (APKS) offers a sustainable way to valorise this waste as potential bio-fillers in rubber composites. This study investigates the influence of nano-sized PKSB (n-PKSB) and activated PKS (n-APKS) as bio-fillers on the mechanical performance of natural rubber (NR) vulcanizates, with filler loadings ranging from 0 to 10 parts per hundred rubber… More > Graphic Abstract