Characterization and evaluation of agro-industrial wastes for the production of bio-oils rich in phenolic compounds

IF 7 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy Pub Date : 2026-08-01 Epub Date: 2026-03-06 DOI:10.1016/j.biombioe.2026.109194

Meire Ane Pitta da Costa , Valter Dória Rocha Neto , Thiago Ferreira Leão Loeser , Anne Michelle Garrido Pedrosa , Silvânio Silvério Lopes da Costa , Lisiane Santos Freitas

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Abstract

Research into alternative and sustainable sources of chemicals and fuels has been growing in recent decades, driven by the need to reduce dependence on fossil resources and mitigate the environmental impacts associated with their use. In this context, agro-industrial waste has emerged as a promising biomass source for the production of high-value-added products, such as bio-oils rich in phenolic compounds. This study aims to characterize and evaluate the seeds of acerola (ACE), grape (UVA), guava (GOI), and passion fruit (MAR), investigating their properties and potential for conversion into bio-oils rich in phenolic compounds. The biomass samples were characterized through elemental analysis (CHNO), thermogravimetry (TG), ash content, moisture, total extractives, and oil content. The samples showed low ash content (1.00 to 2.71%) and moisture (1.55 to 6.61%). Thermogravimetric analysis elucidated the lignocellulosic composition of the samples, a relevant parameter for understanding the thermal degradation of their constituents. Using GC-MS, the bio-oils were characterized, demonstrating the potential for using these biomasses in the production of phenolic resins. The predominant classes differed according to the compositions: higher percentages of phenols were found in the bio-oil from ACE, and carboxylic acids were more prevalent in the others, due to the oil content.

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生产富含酚类化合物生物油的农工废弃物的特性与评价

近几十年来，由于需要减少对化石资源的依赖并减轻与使用化石资源有关的环境影响，对化学品和燃料的替代和可持续来源的研究一直在增加。在这种情况下，农业工业废弃物已成为生产高附加值产品（如富含酚类化合物的生物油）的有前途的生物质来源。本研究旨在对针叶树（ACE）、葡萄（UVA）、番石榴（GOI）和百香果（MAR）的种子进行表征和评价，探讨其特性和转化为富含酚类化合物的生物油的潜力。通过元素分析（CHNO）、热重（TG）、灰分、水分、总萃取物和含油量对生物质样品进行了表征。样品灰分含量低（1.00 ~ 2.71%），水分含量低（1.55 ~ 6.61%）。热重分析阐明了样品的木质纤维素组成，这是了解其成分热降解的相关参数。利用GC-MS对生物油进行了表征，证明了利用这些生物质生产酚醛树脂的潜力。根据成分的不同，优势类别有所不同：ACE生物油中酚类含量较高，而由于油含量的原因，羧酸在其他生物油中更为普遍。

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来源期刊

Biomass & Bioenergy 工程技术-能源与燃料

CiteScore

11.50

自引率

3.30%

发文量

258

审稿时长

60 days

期刊介绍： Biomass & Bioenergy is an international journal publishing original research papers and short communications, review articles and case studies on biological resources, chemical and biological processes, and biomass products for new renewable sources of energy and materials. The scope of the journal extends to the environmental, management and economic aspects of biomass and bioenergy. Key areas covered by the journal: • Biomass: sources, energy crop production processes, genetic improvements, composition. Please note that research on these biomass subjects must be linked directly to bioenergy generation. • Biological Residues: residues/rests from agricultural production, forestry and plantations (palm, sugar etc), processing industries, and municipal sources (MSW). Papers on the use of biomass residues through innovative processes/technological novelty and/or consideration of feedstock/system sustainability (or unsustainability) are welcomed. However waste treatment processes and pollution control or mitigation which are only tangentially related to bioenergy are not in the scope of the journal, as they are more suited to publications in the environmental arena. Papers that describe conventional waste streams (ie well described in existing literature) that do not empirically address ''new'' added value from the process are not suitable for submission to the journal. • Bioenergy Processes: fermentations, thermochemical conversions, liquid and gaseous fuels, and petrochemical substitutes • Bioenergy Utilization: direct combustion, gasification, electricity production, chemical processes, and by-product remediation • Biomass and the Environment: carbon cycle, the net energy efficiency of bioenergy systems, assessment of sustainability, and biodiversity issues.