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All Journal JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI
I.W.G. Sedana Yoga
Universitas Udayana
Agriculture, Biological Sciences & Forestry Chemistry Immunology & microbiology Industrial & Manufacturing Engineering

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Karakteristik Karboksimetil Selulosa Dari Onggok Singkong Pada Variasi Konsentrasi Natrium Hidroksida Dan Asam Trikloroasetat N.P. Mega Triasswari; I W. Arnata; I.W.G. Sedana Yoga
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 10 No 3 (2022): September
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRMA.2022.v10.i03.p07

Abstract

Onggok is tapioca solid waste that contains high cellulose reach 15% to 30% but has not been used appropriately. This study aimed to determine the concentration of NaOH and TCA in producing the best CMC characteristics of onggok. The study used a factorial randomized block design. The first factor was the concentration of NaOH (15%; 30%; and 45%), and the second factor was the concentration of TCA (10%; 20%; and 30%). The observed variable included degree of substitution, yield, water content, NaCl content, and purity of CMC. The results showed that the concentration of NaOH and TCA significantly affected the degree of substitution, yield, water content, viscosity, and purity of CMC. The concentrations of 45% NaOH and 30% TCA produced the best CMC characteristics with yield, moisture content, degree of substitution, viscosity, and CMC purity of 1.13±0.12, 22.86±0.15%, 9.57±0.53%, 170.00±10.00cPs, and 99.14±0.40%, respectively.
Co-Authors I W. Arnata N.P. Mega Triasswari