Dilute Acid Hydrolysis of Lignocellulose Fiber Sago Pretreated by Microwave Heating

Abstract:

The dilute acid hydrolysis of fiber sago with cloride acid was undertaken in a microwave reactor system. The glucose and morphology analysis were performed after cellulose and hemi-cellulose hydrolysis. The hydrothermal condition was setup in a microwave furnace at microwave power of 800 W for 30-60 min. Scanning electron microscopy (SEM) analysis were utilized to confirm the microstructural changes after pretreatment. The results show that by using microwave energy, hydrolysis is not only can work in lower temperature than that of hot plate hydrolysis but also give a higher yield. There also found that the pretreatment optimum conditions for fiber sago hydrolysis is at 5% chloride acid solution and applied microwave power of 800 watt for 45 minutes. At that condition, there was found that sugar degradation occurred at acid concentrations greater than 30.15%. Microstructure evaluation from SEM photos shows that the disruption of the structure of the cell wall increases the accessibility of cellulase to lignocellulose. This results suggest that microwave technology is appropriate technology for holocellulose (cellulose and hemi-cellulose) hydrolysis.

• Periodical: Solid State Phenomena (Volume 266)
• Pages: 135-140
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.266.135
• Online since: October 2017
• Authors: Prima Endang Susilowati, Dahlia Dahlia, Wulan Purnama Sari, Seitaro Mitsudo, La Ode Ngkoimani, Inyoman Nyoman Sudiana*
• Keywords: Fiber Sago, Glucose, Hydrolysis, Lignocelluloses, Microwaves

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