Abstract:
Eleocharis dulcis (E. dulcis) is a sustainable wetland material available in enormous
quantities in Kalimantan, Indonesia. Therefore, this study aimed to evaluate the
suitability of the acid hydrolysis method for the isolation of nanocellulose of E. dulcis.
The isolation process started with delignification, followed by the removal of
hemicellulose to produce cellulose. The hydrolysis was performed at 45 °C for 60 and
120 minutes, respectively, using sulphuric acid. Furthemore the nanocellulose was
characterized using Particle Size Analyzer, Fourier transform infrared spectroscopy and
X-ray diffractions. The particle size analysis showed that the diameter of the obtained
nanocellulose was affected by hydrolysis time. In addition, the X-ray diffractions results
showed that the crystallinity index of the nanocellulose was 71.99% and 71.61% for the
acid hydrolysis time of 60 minutes and 120 minutes, respectively. This study also
demonstrated that the aquatic wetland plant, E. dulcis has a good potential for
nanocellulose production in Indonesia.
Keywords: Eleoharis dulcis, nanocellulose, wetland-plant, acid hydrolysis
