The purity improvement of cellulose and carboxymethyl cellulose (CMC) from the conversion of OPEFB waste using NaOH 12% treatment
Firda Dimawarnita | Tri-Panji | Yora Faramita
Cellulose purified from baglog OPEFB waste using NaOH 10% treatment only produced α-cellulose 80.2% which then being converted to CMC with the purity of 73.4%. Low purity of this CMC did not meet the standard for food-grade which requires purity above 99.5%. This study aimed to improve the purity of cellulose from baglog OPEFB waste by using NaOH 12% treatment. In this way, the purity of the resulting CMC would be expected higher. The resulting CMC product was observed using SEM, FTIR and XRD. The result showed that α-cellulose obtained increased to 84.54% by using 12% NaOH treatment. The resulting CMC had a higher purity level (95.24%). Efforts to increase the degree of substitution and viscosity are still needed to achieve specifications that meet the quality standards of SNI. FTIR and XRD results showed that the characteristics of CMC produced from baglog OPEFB waste were close to commercial CMC as indicated by their functional groups and degree of crystallinity.
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