A kinetic study of saccharification of jackfruit residue (Artocarpus heterophyllus). Chemical and enzymatic pathway
En este trabajo se planteó la obtención de azúcares a partir del residuo lignocelulósico del fruto de jaca (Artocarpus heterophyllus). Se realizaron reacciones de hidrólisis ácida a temperaturas de 90, 105 y 120°C para concentraciones de ácido sulfúrico (H2SO4) de 2, 4, 6, 8 y 10%. Además, se llevaron a cabo hidrólisis enzimáticas usando celulasas y hemicelulasas (de Aspergillus niger) como catalizadores usando cargas de sólido (Rs/l) de 7.5, 10 y 12.5%, a temperaturas de 30, 40 y 50°C. La mayor producción de azúcares reductores en hidrólisis ácida fue de 10.01 g/L en 180 min, 10% y 105°C. En la hidrólisis enzimática, la máxima producción fue de 32.44 g/L en 12 h con un Rs/l=7.5% a 40°C.
A kinetic study of saccharification of jackfruit residue (Artocarpus heterophyllus). Chemical and enzymatic pathway
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DOI: Traduzir para o Inglês!
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Palavras-chave: Sacarificación, residuo de jaca, hidrolisis ácida, hidrólisis enzimática.
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Keywords: Saccharification, jackfruit residue, acid hydrolysis, enzymatic hydrolysis.
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Abstract:
This work deals with the sugars production from the lignocellulosic residue of jackfruit (Artocarpus heterophyllus). Acid hydrolysis reactions were carried out at temperatures of 90, 105 and 120°C using sulfuric acid concentrations (H2SO4) of 2, 4, 6, 8 and 10%. Besides, enzymatic hydrolysis was conducted using cellulases and hemicellulases (by Aspergillus niger) as catalysts. Solid loads (Rs/l) of 7.5, 10 and 12.5% were treated in the reaction mixture at temperatures of 30, 40 and 50°C. The biggest production of reducing sugars obtained in acid hydrolysis was of 10.01 g/L at 180 min, 10% of solids load and 105°C. Regarding to the enzymatic hydrolysis, the maximum concentration of reducing sugars (32.44 g/L) was reached at 12 h, for Rs/l and temperature conditions of 7.5% and 40°C, respectively.
- RAUL DELGADO DELGADO
- Leticia Mónica Sánchez-Herrera
- Ana Alejandra Vargas-Tah
- Agustín Jaime Castro-Montoya
- Miguel Angel Espinoza-Rodríguez
- Antonio Hidalgo-Millán
