Abstract
In this paper, we report the isolation method of cellulose, alpha cellulose and microcrystalline cellulose from corncorbs waste in alkaline treatment NaOH 4%,6%,8%,10%,12%,14% and 17% solution. Dewaxing, dehemiselulosa, delignifikasi and bleaching is the stage of cellulose isolation. The MCC particles were extracted by acid hydrolisis with 0.1N HCl. The 4% NaOH concentration provides the highest α-cellulose content (60%) with total yield MCC of 84.53%. SEM, FT-IR and X-ray diffraction analyzes are used to determine of the MCC. FTIR spectra showed that each MCC had -OH group, stretching of C-O on cellulose fiber I and cellulose II. C-0 bonds shows a change in rotation of glucose residue around the glycosidic bond into Cellulose II. SEM analysis showed that the concentration of 6% NaOH has a morphological structure such as cellulose standard. The 8% NaOH concentration yields a CrI value of 98%.
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