Bioethanol production by S. cerevisiae ITV-01 RD immobilized on pre-treated sugarcane bagasse
| Autor: | Javier Gómez Rodríguez, Benigno Ortiz-Muñiz, Beatriz Gutiérrez-Rivera, María Guadalupe Aguilar-Uscanga, Alba Jessica Godoy-Salinas |
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| Rok vydání: | 2021 |
| Předmět: |
Packed bed
Ethanol Renewable Energy Sustainability and the Environment 020209 energy Sulfuric acid 02 engineering and technology 010501 environmental sciences 01 natural sciences Dilution chemistry.chemical_compound Adsorption chemistry Biofuel 0202 electrical engineering electronic engineering information engineering Ethanol fuel Food science Bagasse 0105 earth and related environmental sciences |
| Zdroj: | Biomass Conversion and Biorefinery. 13:5973-5980 |
| ISSN: | 2190-6823 2190-6815 |
| Popis: | The use of raw sugarcane bagasse for cell immobilization by adsorption was evaluated in order to increase ethanol production. The aim of this work was to study the immobilization process of Saccharomyces cerevisiae ITV-01 RD on natural and pre-treated sugarcane bagasse. Pre-treatment with sulfuric acid was selected because of the efficiency and retention obtained (58% and 80 mg/g). The Guggenheim–Andersen–de Boer (GAB) model adjusted experimental data and demonstrated that the process involved monolayer and multilayer stages. No statistically different results were obtained between the use of solid:liquid ratios of 1:75 and 1:100, and immobilization was stable up to 20 days. In a packed bed reactor using glucose medium, at a dilution rate (D) of 0.11 h−1, 48 g/L ethanol was produced; meanwhile at 0.48 h−1, ethanol productivity was 12.1 g/Lh. Using sugarcane juice diluted to 100 g/L total sugars, an ethanol productivity of 5.03 g/Lh was attained. |
| Databáze: | OpenAIRE |
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