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Article

Hot Compressed Water Pretreatment and Surfactant Effect on Enzymatic Hydrolysis Using Agave Bagasse

1
Biorefinery Group, Food Research Department, Faculty of Chemistry Sciences, Autonomous University of Coahuila, Saltillo 25280, Mexico
2
Centre of Biological Engineering, Campus Gualtar, University of Minho, 4710-057 Braga, Portugal
*
Authors to whom correspondence should be addressed.
Academic Editor: Lyes Bennamoun
Energies 2021, 14(16), 4746; https://doi.org/10.3390/en14164746
Received: 18 June 2021 / Revised: 15 July 2021 / Accepted: 30 July 2021 / Published: 4 August 2021
Agave bagasse is a residual biomass in the production of the alcoholic beverage tequila, and therefore, it is a promising raw material in the development of biorefineries using hot compressed water pretreatment (hydrothermal processing). Surfactants application has been frequently reported as an alternative to enhance monomeric sugars production efficiency and as a possibility to reduce the enzyme loading required. Nevertheless, the surfactant’s action mechanisms in the enzymatic hydrolysis is still not elucidated. In this work, hot compressed water pretreatment was applied on agave bagasse for biomass fractionation at 194 °C in isothermal regime for 30 min, and the effect of non-ionic surfactants (Tween 20, Tween 80, Span 80, and Polyethylene glycol (PEG 400)) was studied as a potential enhancer of enzymatic saccharification of hydrothermally pretreated solids of agave bagasse (AGB). It was found that non-ionic surfactants show an improvement in the conversion yield of cellulose to glucose (100%) and production of glucose (79.76 g/L) at 15 FPU/g glucan, the highest enhancement obtained being 7% regarding the control (no surfactant addition), using PEG 400 as an additive. The use of surfactants allows improving the production of fermentable sugars for the development of second-generation biorefineries. View Full-Text
Keywords: lignocellulosic materials; biomass; biofuels; hydrothermal processing; biorefinery lignocellulosic materials; biomass; biofuels; hydrothermal processing; biorefinery
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MDPI and ACS Style

Pino, M.S.; Michelin, M.; Rodríguez-Jasso, R.M.; Oliva-Taravilla, A.; Teixeira, J.A.; Ruiz, H.A. Hot Compressed Water Pretreatment and Surfactant Effect on Enzymatic Hydrolysis Using Agave Bagasse. Energies 2021, 14, 4746. https://doi.org/10.3390/en14164746

AMA Style

Pino MS, Michelin M, Rodríguez-Jasso RM, Oliva-Taravilla A, Teixeira JA, Ruiz HA. Hot Compressed Water Pretreatment and Surfactant Effect on Enzymatic Hydrolysis Using Agave Bagasse. Energies. 2021; 14(16):4746. https://doi.org/10.3390/en14164746

Chicago/Turabian Style

Pino, Marcela Sofia, Michele Michelin, Rosa M. Rodríguez-Jasso, Alfredo Oliva-Taravilla, José A. Teixeira, and Héctor A. Ruiz. 2021. "Hot Compressed Water Pretreatment and Surfactant Effect on Enzymatic Hydrolysis Using Agave Bagasse" Energies 14, no. 16: 4746. https://doi.org/10.3390/en14164746

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