Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/75250
Title: Assessment of the effect of autohydrolysis treatment in banana's pseudostem pulp
Authors: Díaz Guzmán, Sara Ester 
Ortega Medina, Zaida 
Benítez Vega, Antonio N. 
Costa, Diogo
Carvalheiro, Florbela
Fernandes, Maria C.
Duarte, Luís C.
UNESCO Clasification: 331005 Ingeniería de procesos
Keywords: Autohydrolysis
Banana Wastes
Biomass Pretreatment
Biorefinery
Enzymatic Digestibility, et al
Issue Date: 2021
Project: FPU15/03138
UIDB/05183/2020
Journal: Waste Management 
Abstract: Banana's pseudostem pulp (BPP) is a potential by-product obtained in the mechanical fiber extraction of banana's pseudostem. Its chemical characterization revealed to have an interesting composition, with a high polysaccharides content and low content in lignin, which makes it particularly relevant for the biorefinery's biochemical platform. Autohydrolysis pretreatment, studied under isothermal (140 °C) and non-isothermal conditions (140–220 °C), yielded oligosaccharides, mainly gluco-oligosaccharides, as the main soluble products. The highest oligosaccharides production (24 g/100 g raw material) was obtained at a severity factor of 2.3. Autohydrolysis pretreatment effectively disrupted the structure of the material, inducing an improvement of the enzymatic digestibility from 73% for the raw material up to 90% for the most severe conditions. Two stage autohydrolysis, with increasing severity, was also studied, allowing to obtain a higher amount of oligosaccharides (32 g/100 g raw material) and higher digestibility of the remaining solid (up to 97%).
URI: http://hdl.handle.net/10553/75250
ISSN: 0956-053X
DOI: 10.1016/j.wasman.2020.09.034
Source: Waste Management [ISSN 0956-053X], v. 119, p. 306-314, (Enero 2021)
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