Sustainability of Biorefinery Processes Based on Baru Biomass Waste

Abstract

The aims of the current study are to investigate the composition of biomass from baru processing and to explore the feasibility of valuing it through the development of bioproducts such as fermentable sugars, furanics and biochar. Baru (Dipteryx alata Vog.) waste (endocarp and mesocarp) has great energetic potential to produce bioproducts due to its chemical composition. Proximate analyses applied to such waste have found low favorable moisture and ash content in it. Bioproduct characterizations after acid hydrolysis have shown that baru endocarp and mesocarp biomass can enable a range of value-added products in biorefinery concepts such as furfural and 5-hydroximetylfurfural (20.0 and 1.5% yield, respectively), and high sugar content (approximately 19.15 and 38.40%, respectively). Pyrolysis processes also present high biochar content (ca. 48%), with satisfactory characteristics to be used as fuel, as well as calorific value higher than 30 kJ g-1 .

Nanopartículas Magnéticas: Aplicações E Desafios

“…The current study recorded high extractive content (approximately 30%), which was similar to the one reported in the literature (RAMBO, SCHMIDT and FERREIRA, 2015;RAMBO et al, 2019). However, these extractives were removed with ethanol before pretreatment applications; helped decreasing negative effects during the reactions.…”

Bioproducts from agro-industrial plant residues: opportunities for sustainable reuse / Bioprodutos de resíduos agroindustriais vegetais: oportunidades ao reaproveitamento sustentável

“…Processes such as calcination (Gu et al 2018), hydrodistillation (Tavares et al 2020), lyophilization (Rubio et al 2020), anaerobic anaerobic digestion (Alrefai et al 2020), extraction (Akond and Lynam 2020), fermentation ( Coimbra et al 2021), enzymatic hydrolysis (Corchado-Lopo et al 2021), hydrothermal liquefaction (Cervi et al 2021), saccharification (Marques and Aguiar-Oliveira 2020), transesterification (Khounani et al 2021b) among others, they are difficult to implement due to the great procedural and technological complexity, which requires greater investment, especially in equipment and infrastructure, making it difficult to implement as a strategy for the use of waste in the Extreme South of Bahia. The simplest processes that facilitate implementation in the region are found in other bioproducts, such as soil corrective using orange peel and sugarcane bagasse (Debernardi-Vázquez et al 2020) for composting, biochar using pie castor bean (Silva et al 2021), sunflower seed (Casoni et al 2019), cherry kernel (Pollard and Goldfarb 2021), filter cake and sugarcane molasses (Bernardino et al 2018;, branches, stems, roots and leaves of trees (Martín et al 2017), oat husk (Srivastava et al 2020), baru endocarp/mesocarp (Rambo et al 2020a;Rambo et al 2020b), coffee and cocoa husks (Milian-Luprón et al 2020) obtained by pyrolysis and briquettes using tree branches, trunks, roots and leaves (Nunes et al 2019;Ponte et al 2019), husk from coconut (Nunes et al 2019) and sugarcane bagasse (Ponte et al 2019) through crushing and compaction.…”

Analysis of the potential of cupuaçu husks (Theobroma grandiflorum) as raw material for the synthesis of bioproducts and energy generation

“…Figure 1 shows the chemical composition (left) and sugar content (right) of cupuaçu husks (see the chemical composition values in Supplementary Table S1). The holocellulosic fraction, which represents the sum of cellulose and hemicellulose contents in cupuaçu husk (59.6%), was significantly higher than others raw biomass found in cocoa shell (38.8%) (Hoyos et al, 2020) and pequi shell (41.6%) (Scapin et al, 2020), for instance, and similar to the baru mesocarp (59.3%) found by Rambo et al (2020). Additionally, complementary methodologies for characterization of alpha-cellulose and hemicellulose (Pedrazzi et al, 2019) Additionally, it is employed in the food, cosmetics, and textile sectors, as well as in the recent synthesis of functional materials (Pessêgo et al, 2011;Albuquerque et al, 2021;Rahim et al, 2019).…”