Guest Editors
Assist. Prof. Mochamad Asrofi
Email: asrofi.teknik@unej.ac.id
Affiliation: Department of Mechanical Engineering, Faculty of Engineering, University of Jember, Jember, 68121, Indonesia
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Research Interests: natural fiber modification, nanocellulose, nanofiber cellulose, biocomposite, bionanocomposite, green composite, biopolymer composite, starch bioplastic, thermoplastic starch, materials characterization

Summary
In the era of environmental concern and sustainability, the development of fully renewable materials has gained increasing attention across scientific and industrial communities. This Special Issue aims to highlight recent advancements in the extraction, modification, and application of bio-based materials derived entirely from renewable sources such as agricultural waste, wood and non-wood plants, and starchy biomass. Natural cellulose fibers, nanocellulose, and starch-based polymers offer significant potential as sustainable alternatives to conventional petroleum-based materials, particularly in the development of biocomposites, bionanocomposites, and biodegradable plastics.
This Special Issue invites original research articles, reviews, and case studies focusing on innovative approaches for the valorization of biomass into functional materials. The scope includes material processing, surface modification, characterization, structure-property relationships, and performance analysis in various applications such as packaging, automotive, biomedical, and structural uses. We particularly encourage interdisciplinary contributions that bridge chemistry, materials science, nanotechnology, and engineering for a circular bioeconomy. Suggested themes include but are not limited to:
(1) Extraction and modification of cellulose from agricultural waste
(2) Nanocellulose and nanofiber-based composites
(3) Thermoplastic starch and starch-based bioplastics
(4) Green synthesis of bio-based polymers
(5) Characterization and performance of renewable composites
(6) Biodegradability and life cycle assessment of bio-based materials
Keywords
natural fiber; nanocellulose; biocomposite; starch-based bioplastics; thermoplastic starch; agricultural waste valorization; renewable materials; green composites; sustainable polymers; materials characterization