Outubro 2023 vol. 10 num. 5 - IX Simpósio Internacional de Inovação e Tecnologia

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GC×GC-TOFMS of bio-oils from pyrolysis of açaí seeds (Euterpe oleracea Marth)

GC×GC-TOFMS of bio-oils from pyrolysis of açaí seeds (Euterpe oleracea Marth)

Conrado, Nathalia Mendonça ; Santos, Anaí L. dos ; Farrapeira, Rafael O. ; Andrade, Yasmine B. ; Polidoro, Allan S. ; Krause, Laiza C. ; Freitas, Lisiane dos S. ; Caramão, Elina B. ;

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The açaí processing industry generates a significant amount of waste, predominantly seeds, which constitute about 80% of its weight. The aim of this study is to evaluate the chemical composition of the bio-oil from açaí seeds using GC×GC-TOFMS. The açaí seeds underwent a preliminary treatment involving the extraction of the lipid fraction utilizing an EDGE™ extractor (sequential extraction - conducted 20 times with 20 mL of petroleum ether at 70°C, held for 10 minutes). Following this, the solid residue underwent pyrolysis in a mini fixed-bed reactor (with a heating rate of 100 °C min-1, a nitrogen flow rate of 2 mL min-1 and maintained at 600 °C for a one-minute residence time). Analysis revealed a bio-oil yield of 21.44%, devoid of water content. This analysis, carried out through GC×GC-TOFMS, demonstrated that phenols were the primary category of identified compounds, comprising 59.4%, followed by other compounds typically found in bio-oils from seed biomass. This indicates the potential to add value to a residual biomass that previously had no commercial use.

Full article:

The açaí processing industry generates a significant amount of waste, predominantly seeds, which constitute about 80% of its weight. The aim of this study is to evaluate the chemical composition of the bio-oil from açaí seeds using GC×GC-TOFMS. The açaí seeds underwent a preliminary treatment involving the extraction of the lipid fraction utilizing an EDGE™ extractor (sequential extraction - conducted 20 times with 20 mL of petroleum ether at 70°C, held for 10 minutes). Following this, the solid residue underwent pyrolysis in a mini fixed-bed reactor (with a heating rate of 100 °C min-1, a nitrogen flow rate of 2 mL min-1 and maintained at 600 °C for a one-minute residence time). Analysis revealed a bio-oil yield of 21.44%, devoid of water content. This analysis, carried out through GC×GC-TOFMS, demonstrated that phenols were the primary category of identified compounds, comprising 59.4%, followed by other compounds typically found in bio-oils from seed biomass. This indicates the potential to add value to a residual biomass that previously had no commercial use.

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Palavras-chave: GC×GC/TOFMS, açai, pyrolysis, EDGE,

Palavras-chave: GC×GC/TOFMS, açai, pyrolysis, EDGE,

DOI: 10.5151/siintec2023-298048

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Como citar:

Conrado, Nathalia Mendonça ; Santos, Anaí L. dos ; Farrapeira, Rafael O. ; Andrade, Yasmine B. ; Polidoro, Allan S. ; Krause, Laiza C. ; Freitas, Lisiane dos S. ; Caramão, Elina B. ; "GC×GC-TOFMS of bio-oils from pyrolysis of açaí seeds (Euterpe oleracea Marth)", p. 9-16 . In: . São Paulo: Blucher, 2023.
ISSN 2357-7592, DOI 10.5151/siintec2023-298048

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