Effect of the chemical treatment sequence on pineapple peel fiber: chemical composition and thermal degradation behavior (2022)
- Authors:
- USP affiliated authors: ARANTES, VALDEIR - EEL ; PEREIRA, BÁRBARA - EEL
- Unidade: EEL
- DOI: 10.1007/s10570-022-04806-0
- Subjects: CELULOSE; BIOTECNOLOGIA
- Keywords: Fresh pineapple peel fibers; Cellulose; Chemical treatment
- Agências de fomento:
- Language: Inglês
- Abstract: Millions of tons of fruit waste are generated globally every year from agricultural residues, which makes it essential to find alternative uses to increase their aggregate value and reduce their environmental impact. The present study aimed to explore pineapple peel as an alternative source of cellulose by evaluating its chemical composition and physical properties, which are essential for applications. A sequence of chlorine-free treatments was applied to purify the cellulose by removing noncellulosic components in the fresh pineapple peels. The cellulosic pulp was characterized regarding its chemical composition and characterized by Nuclear Magnetic Resonance (13C NMR), X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis to determine crystallinity, structural properties, morphology, and thermal characteristics, respectively. The results revealed that the pineapple peel amorphous segments containing hemicelluloses and lignin were extensively removed with increasing chemical treatment steps, leading to increased purity, crystallinity index, and thermal stability of the extracted cellulose pulps. The maximum thermal degradation (150 °C) and crystallinity index (80.9%) were determined for the cellulosic material obtained from the second bleaching (2B) step. The cellulose content increased from 24% in the starting material (fresh pineapple peel) to 80.9% in the bleached cellulose (2B). These results indicate that the extracted cellulose from pineapple peel has characteristic for applications such as the production of cellulose nanocrystals due to the high crystallinity.
- Imprenta:
- Source:
- Este periódico é de assinatura
- Este artigo NÃO é de acesso aberto
- Cor do Acesso Aberto: closed
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ABNT
PEREIRA, Paulo Henrique Fernandes et al. Effect of the chemical treatment sequence on pineapple peel fiber: chemical composition and thermal degradation behavior. Cellulose, v. 29, p. 8587-8598, 2022Tradução . . Disponível em: https://doi.org/10.1007/s10570-022-04806-0. Acesso em: 31 maio 2024. -
APA
Pereira, P. H. F., Arantes, V., Pereira, B., Ornaghi Junior, H. L., Oliveira, D. M. de, Santagneli, S. H., & Cioffi, M. O. H. (2022). Effect of the chemical treatment sequence on pineapple peel fiber: chemical composition and thermal degradation behavior. Cellulose, 29, 8587-8598. doi:10.1007/s10570-022-04806-0 -
NLM
Pereira PHF, Arantes V, Pereira B, Ornaghi Junior HL, Oliveira DM de, Santagneli SH, Cioffi MOH. Effect of the chemical treatment sequence on pineapple peel fiber: chemical composition and thermal degradation behavior [Internet]. Cellulose. 2022 ;29 8587-8598.[citado 2024 maio 31 ] Available from: https://doi.org/10.1007/s10570-022-04806-0 -
Vancouver
Pereira PHF, Arantes V, Pereira B, Ornaghi Junior HL, Oliveira DM de, Santagneli SH, Cioffi MOH. Effect of the chemical treatment sequence on pineapple peel fiber: chemical composition and thermal degradation behavior [Internet]. Cellulose. 2022 ;29 8587-8598.[citado 2024 maio 31 ] Available from: https://doi.org/10.1007/s10570-022-04806-0 - Integration of the cellulose nanoccrystals isolation process, through enzymatic hydrolysis to the production of sugar for 2G ethanol from sugarcane bagasse.
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Informações sobre o DOI: 10.1007/s10570-022-04806-0 (Fonte: oaDOI API)
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