Enabling the Circular-Bioeconomy through Palm Oil Biomass: AReview of Industrial Innovations, Policy Frameworks, and MarketIntegration

Abstract

The transition toward a circular-bioeconomy has positioned palm oil biomass as a pivotal renewable resource for achieving sustainable industrial transformation and low-carbon development. Yet, realizing this transition requires a systemic understanding of how technological, institutional, and market mechanisms interact to enable circularity across the palm oil value chain. This study aims to (1) synthesize technological and industrial innovation pathways driving palm biomass valorisation; (2) analyze the role of policy and governance instruments in supporting sustainable market integration; and (3) identify critical gaps and opportunities for advancing circular-bioeconomic transitions in the palm oil sector. Using a Systematic Literature Review (SLR) approach, data were systematically collected from the Scopus database through a multi-stage keyword refinement process. The initial query (Palm Oil AND Circular Economy) yielded 231 results, refined through specific terms related to biomass valorisation, innovation, and sustainability. Following the exclusion of irrelevant items, the restriction to publications from 2021–2025, and the restriction to open-access and open-archive sources, 38 peer-reviewed articles were retained for qualitative synthesis. Analytical procedures involved thematic coding and comparative interpretation to map interdisciplinary linkages among technological, institutional, and market domains. Findings reveal that integrated biorefinery technologies, digital traceability platforms, and AI-assisted optimization systems enhance resource efficiency and industrial circularity. However, fragmented regulatory frameworks, limited infrastructure, and investment asymmetry remain key constraints to large-scale adoption. The study concludes that achieving a circular-bioeconomy through palm oil biomass valorisation requires coordinated progress across technological innovation, institutional alignment, and market transformation. Future research should advance quantitative modeling, life-cycle assessment, and policy harmonization strategies to accelerate regional bioeconomic implementation.