Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8880720 | Industrial Crops and Products | 2018 | 7 Pages |
Abstract
The leaves of agave plant (Agave tequilana Weber) are agricultural crop residues with a high content of carbohydrates represent a potential feedstock for biofuel production. The objective was to study the effect of treatment conditions in agave leaves powder (dried at 100â¯Â°C, particle size â¤0.3â¯mm) to improve the conversion of carbohydrates from lignocellulosic material and fructans to monosaccharides. Lignocellulosic material was pretreated using dilute acid (H2SO4 or HCl) at different concentrations (0.5%-2.0% v/v) and enzymatic hydrolysis was performed using four commercial enzymes Viscozyme, Cellic HTec, Celluclast, and Cellic CTec-2 separately. In addition, the enzymatic hydrolysis reaction (pH 5.0, 50â¯Â°C) using the commercial cellulases were evaluated at different times (0-36â¯h) in the lignocellulosic material. Fructans were extracted from agave powder and hydrolysates using a commercial inulinase preparation, Fructozyme L, (pH 5.0, 50â¯Â°C, 24â¯h). The best results of the treatments applied in the lignocellulosic material were H2SO4 (0.5% v/v) and enzymatic hydrolysis using Cellic CTec-2 for 18â¯h. The sugars released from the lignocellulosic material and the fructans represent a saccharification yield of 97%, obtaining 68â¯g of reducing sugars per 100â¯g of agave powder. The furfural and hydroxymethylfurfural compounds were not detected in the lignocellulosic material treated with H2SO4 (0.5% v/v) and the concentration of phenolics was 239.8â¯Â±â¯2.1â¯mg/L. The results show that the treated agave leaves represent a good prospect for the production of biofuels.
Keywords
Related Topics
Life Sciences
Agricultural and Biological Sciences
Agronomy and Crop Science
Authors
Jorge Avila-Gaxiola, Oscar Jesús Velarde-Escobar, Jesús Roberto Millan-Almaraz, Francisco Ramos-Brito, Gelacio Atondo-Rubio, Cristo Yee-Rendon, Evangelina Avila-Gaxiola,