Modification of cellulose for high glucose generation

Area of Science:

• Biomass Conversion
• Materials Science
• Chemical Engineering

Background:

• Microcrystalline cellulose (MCC) is a renewable resource for glucose production.
• Acid-catalyzed hydrolysis of MCC is a key process for obtaining glucose.
• Optimizing hydrolysis conditions is crucial for efficient glucose yield.

Purpose of the Study:

• To investigate the effect of cyanuric chloride modification on MCC.
• To determine the optimal cyanuric chloride content for maximizing glucose yield.
• To understand how structural changes in MCC influence glucose generation.

Main Methods:

• Chemical modification of MCC with varying cyanuric chloride content.
• X-ray Photoelectric Spectroscopy (XPS) for determining cyanuric chloride content.
• Fourier Transform Infrared Spectroscopy (FTIR) and solid-state (13)C NMR for structural analysis.
• Wide-Angle X-ray Diffraction (WAXD) for assessing crystallinity (CI) and crystal plane ratios (R).

Main Results:

• Glucose yield (Y), Crystallinity Index (CI), and ratio (R) were found to vary with cyanuric chloride content (C).
• MCC modified with 3.9 mol% cyanuric chloride exhibited the highest glucose yield (Y) and ratio (R), with the lowest CI.
• Structural analysis confirmed that cyanuric chloride modification alters the crystal/amorphous proportion and specific crystal planes.

Conclusions:

• Cyanuric chloride modification significantly influences the acid-catalyzed hydrolysis of MCC.
• The observed changes in crystallinity and crystal plane orientation are directly linked to glucose yield.
• Optimized modification of MCC with cyanuric chloride presents a promising strategy for enhanced glucose production.