Abstract
The aim of this research was to assess the quality of four agricultural waste biomass from sugar cane and cassava in Vietnam, the effect of pretreatment technique and the effect of cellulase enzyme in hydrolysis process to transform them into bioethanol. The agriculture biomass residues samples were collected, analysed, treated physically with popping technology. The treated samples then hydrolised using cellulase enzyme then fermented to produce ethanol. Surface structure of samples before and after the pretreatment were obtained by scanning electron microscopy. The result indicated that agricultural waste biomass from sugarcane and cassava pulp possessed component were highly favorable for bioethanol production. In contrast, the component from cassava sterm was not favorable for bioethanol production. Images of surface structures shot in 500 μm, 100 μm, 50 μm and 10 μm resolution of lignocellulose materials showed obviouly change of surface structure after popping pretreatment.
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