Physical and Chemical Pretreatment of Cyperus papyrus Using Sodium Chloride Solution for Biomaterials Application
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Abstract
The objective of this research was to study the appropriate ratio of papyrus to sodium chloride solution for pretreatment using heat from water combined with chemicals. In this experiment, the chemical composition of the pretreatment using the hydrothermal process along with the use of sodium chloride solution was studied. Moreover, the amount of papyrus to sodium chloride solution were varied at 1:5, 1:10, 1:20 and 1:30 (%w/v), respectively. The sodium chloride solution used had a concentration of 2 M and was pretreated for 20 min at a temperature of 200°C. The results showed that at a solid-to-liquid ratio of 1:20, the maximum amount of lignin could be reduced at 11.68%, and at the same time, it was the ratio that could increase the cellulose amount the most at 18.07%. It indicated that ratios affect the selection of appropriate conditions for pretreatment because they cause different changes in chemical composition. Therefore, it is used as a consideration for future use.
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