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Microscopic structure and properties changes of cassava stillage residue pretreated by mechanical activation

Authors
Journal
Bioresource Technology
0960-8524
Publisher
Elsevier
Volume
102
Issue
17
Identifiers
DOI: 10.1016/j.biortech.2011.05.067
Keywords
  • Cassava Stillage Residue
  • Mechanical Activation
  • Lignocellulosic Biomass
  • Crystal Structure
Disciplines
  • Design
  • Physics

Abstract

Abstract This study has focused on the pretreatment of cassava stillage residue (CSR) by mechanical activation (MA) using a self-designed stirring ball mill. The changes in surface morphology, functional groups and crystalline structure of pretreated CSR were examined by using scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) under reasonable conditions. The results showed that MA could significantly damage the crystal structure of CSR, resulting in the variation of surface morphology, the increase of amorphous region ratio and hydrogen bond energy, and the decrease in crystallinity and crystalline size. But no new functional groups generated during milling, and the crystal type of cellulose in CSR still belonged to cellulose I after MA.

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