Chaichawin Chavapradit¹, Wonnop Visessanguan², Suwan Panjanapongchai¹, Anil Kumar Anal^1,*

Journal of Renewable Materials, DOI:10.32604/jrm.2025.058857

Abstract The growing population and industrialization have led to significant production in agro-industrial sectors, resulting in large amounts of agro-industrial residues often left untreated, posing potential environmental issues. Therefore, finding effective ways to utilize these bio-based residues is crucial. One promising approach is to use these low- or no-value agro-industrial wastes as raw materials for producing renewable biomaterials, including proteins and peptides. Research has extensively explored peptide extraction using plant and animal-based agro-industrial residue. Due to lower processing costs and beneficial bioactive properties, peptides derived from waste could replace synthetic peptides and those extracted from food More >

Mahdi Mubarok^1,*, Pirda Maharani Nafisah¹, Adi Santoso², Saefudin^2,*, Efrida Basri², Yusuf Sudo Hadi^1,3, Adik Bahanawan², Rohmah Pari², Imam Busyra Abdillah¹, Jingjing Liao⁴, Dede Hermawan¹, Trisna Priadi¹, Philippe Gérardin⁵, Wayan Darmawan¹

Journal of Renewable Materials, DOI:10.32604/jrm.2024.057476

Abstract Furfurylation, a renowned chemical modification technique, uses furfuryl alcohol to enhance the properties of wood. This technology can be further refined by incorporating renewable tannins, which promote cross-linking with furfuryl alcohol. This study investigates the effects of furfurylation and tannin-modified furfurylation on the physical and mechanical properties of tropical Gmelina wood (Gmelina arborea Roxb.). Experiments involved impregnating Gmelina wood with aqueous solutions of furfuryl alcohol (FA) at 40% and 70% concentrations, as well as FA-tannin combinations (FA 40%-TA and FA 70%-TA), followed by polymerization at 103°C. The results demonstrated that both FA and FA-tannin treatments… More >

Farah Syazwani Shahar¹, Thinesh Sharma Balakrishnan², Mohamed Thariq Hameed Sultan^2,3,*

Journal of Renewable Materials, DOI:10.32604/jrm.2024.02024-0011

Abstract In this comprehensive review, the evolution and progress of bioplastics are examined, with an emphasis on their types, production methods, environmental impact, and biodegradability. In light of the increasing global efforts to address environmental degradation, bioplastics have emerged as a highly potential substitute for conventional petroleum-based plastics. This review classifies various categories of bioplastics, encompassing both biodegradable and bio-based variations, and assesses their environmental consequences using life cycle evaluations and biodegradability calculations. This paper analyzes the technological advancements that have enhanced the mechanical and thermal characteristics of bioplastics, hence increasing their feasibility for extensive commercial… More > Graphic Abstract

See Cheng Lee¹, Han Lyn Foong¹, Nur Hanani Z. A.^1,2,*

Journal of Renewable Materials, DOI:10.32604/jrm.2024.02024-0006

Abstract Fish gelatin films have emerged as eco-friendly packaging materials due to their biodegradability and excellent film-forming properties. This study investigated the effects of varying homogenization rates (0, 6500, 9500, 13,500, 17,500, and 21,500 rpm) on the functional and structural properties of fish gelatin films enriched with cinnamon essential oil (CEO). Homogenization reduced droplet sizes and narrowed droplet size distributions in the film-forming emulsion (FFE). At a homogenization rate of 9500 rpm, the films exhibited excellent mechanical extensibility, reduced surface irregularities, and enhanced smoothness. The highest (p < 0.05) tensile strength and elongation at break were observed… More > Graphic Abstract

Tatiana Volova^1,2, Natalia Zhila^1,2,*, Kristina Sapozhnikova^1,2, Olga Menshikova^1,2, Evgeniy Kiselev^1,2, Alexey Sukovatyi^1,2, Vladimir Volkov³, Ivan Peterson⁴, Natalia Ipatova^1,2, Ekaterina Shishatskaya^1,2

Journal of Renewable Materials, DOI:10.32604/jrm.2024.058775

Abstract The article presents the results of a study on the possibility of synthesizing biodegradable poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [P(3HB-co-4HB)] from renewable waste fish oil (WFO) by the Cupriavidus necator B-10646 bacterium. For the first time, waste oil generated during the processing of Sprattus balticus in the production of sprats was used as the main carbon substrate for the synthesis of P(3HB-co-4HB), and ε-caprolactone was used as a precursor instead of the more expensive γ-butyrolactone. Samples of P(3HB-co-4HB) with a 4HB monomer content from 7.4 to 11.6 mol.% were synthesized, and values of the bacterial biomass yield and the total yield of the… More > Graphic Abstract

Sayeda M. Abdo^1,*, Mehrez E. El-Naggar², Islam El Nagar³, Samar A. El-Mekkawi⁴, Youssef A. M.^3,5

Journal of Renewable Materials, DOI:10.32604/jrm.2024.057736

Abstract The accumulation of non-biodegradable plastic debris in the environment raises serious concerns about potential long-term effects on the environment, the economy, and waste management. To assess the feasibility of substituting commercial plastics for a biodegradable renewable polymer for many applications, low-density polyethylene (LDPE) was mixed with varying concentrations of algal biomass (AB). Algae are considered a clean, renewable energy source because they don’t harm the environment and can be used to create bioplastics. Algal biomass grown in a high rate algal pond (HRAP) used for wastewater treatment used at 12.5–50 weight percent. Mechanical, thermal, and… More > Graphic Abstract

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

Journal of Renewable Materials, DOI:10.32604/jrm.2024.057663

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 >

Chenglong Zhong¹, Xianfeng Hou^1,*, Shuai Peng¹, Zhenzhong Gao¹, Qiaofang Zhou¹, Shijing Yan²

Journal of Renewable Materials, DOI:10.32604/jrm.2024.049534

Abstract The main raw material utilized in wood adhesives comes from petrochemical extractives. However, due to the excessive dependence on petrochemical resources and the adverse impact on the ecosystem and human well-being, there is an increasing trend to develop byproduct protein-based adhesives in the current global food safety context. In this research, flaxseed meal was subjected to pretreatment, and trimethylolpropane triglycidyl ether (TTE) and ethylenediamine (EN) were utilized as crosslinkers to establish a more compact adhesive layer and to prevent water intrusion. The pretreatment decreased the FM/UB viscosity by 60% compared to FM. The combination of… More > Graphic Abstract

María Fernanda Cardona Lunar¹, Ramón Ordoñez², Heidi Fonseca Florido³, Joaquín Hernández-Fernández^4,5,6, Rodrigo Ortega-Toro^1,*

Journal of Renewable Materials, DOI:10.32604/jrm.2024.056639

Abstract The extensive use of polymeric materials in single-use packaging has driven the need to develop biodegradable alternatives. This study investigates the incorporation of graphene oxide (GO) and Moringa oleifera seed oil (MOSO) into a gelatin matrix to create polymer films and evaluate their potential as active packaging materials. The properties of these films were evaluated using structural, thermal, mechanical, optical, and physicochemical methods to determine their suitability for food packaging applications. The results showed that GO and MOSO were homogeneously dispersed in the gelatin matrix, forming colloidal particles (around 5 µm in diameter). The addition of… More > Graphic Abstract

Prabu Satria Sejati^1,2, Adrien Magne¹, Luke Froment¹, Jennifer Afrim¹, Alexandre Maenhaut³, Julie Maillet³, Firmin Obounou Akong^1,*, Frédéric Fradet³, Philippe Gérardin^1,*

Journal of Renewable Materials, DOI:10.32604/jrm.2024.056813

Abstract Bio-based thermoplastic film from flax fiber and fatty acid (FA) was obtained using trifluoroacetic anhydride (TFAA) as an impelling agent. Different quantities of TFAA/FA, size of flax fiber, and fatty acids were applied to investigate chemical structure in relation to the mechanical properties. Decreasing the quantity of TFAA/FA by almost half from 1:4 to 1:2.5 (flax to TFAA/FA) only reduces by 22% the weight percent gain (WPG) and ester content and reducing flax fiber size slightly increases the WPG and ester content. All the treatments showed significant chemical structure modification, observed by FTIR and solid… More > Graphic Abstract