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Assessment of the effect of autohydrolysis treatment in banana’s pseudostem pulp
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Advisor(s)
Abstract(s)
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 degrees C) and non-isothermal conditions (140-220 degrees 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%).
Description
Keywords
Agricultural Wastes Biomass Pre-treatment Autohydrolysis Biorefinery Enzymatic hydrolysis Oligosaccharides
Citation
Díaz, Sara... [et.al.] - Assessment of the effect of autohydrolysis treatment in banana’s pseudostem pulp. In: Waste Management, 2021, Vol. 119, p. 306-314
Publisher
Elsevier