| Autor: |
Godoy-Salinas, Alba Jessica, Ortiz-Muñiz, Benigno, Rodríguez, Javier Gómez, Gutiérrez-Rivera, Beatriz, Aguilar-Uscanga, Maria Guadalupe |
| Zdroj: |
Biomass Conversion and Biorefinery; May 2023, Vol. 13 Issue: 7 p5973-5980, 8p |
| Abstrakt: |
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 cerevisiaeITV-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: |
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