Utilizações do caroço de açaí: uma revisão sistemática na literatura

Abstract

The processing of açaí (Euterpe oleracea Mart.) generates large volumes of waste, especially the seeds, whose improper disposal poses a growing environmental challenge in the Amazon region. In this context, this study aimed to identify and analyze, through a systematic literature review, the main strategies for reusing açaí seeds published between 2015 and 2025. The research was conducted in databases SciELO, ScienceDirect, Web of Science, and Scopus, using inclusion criteria based on thematic relevance and practical applicability. A total of 30 studies were selected and categorized into five major technological application areas: production of biochar and activated carbon, use as agricultural substrate, incorporation into construction materials, conversion into bioenergy, and development of alternative value-added products. The findings reveal that açaí seeds have substantial potential for sustainable applications, demonstrating efficiency in pollutant adsorption processes, soil improvement, eco-friendly material production, and renewable energy generation. The literature also points to challenges such as economic feasibility, lack of adequate processing infrastructure, and the need for public policies to strengthen the regional bioeconomy. It is concluded that the valorization of this agro-industrial residue represents a promising path for circular economy strategies in the Amazon, contributing to the mitigation of environmental impacts, productive diversification, and the strengthening of local sustainable innovation chains.