Synthesis of carboxymethyl cellulose from ex-baglog of oyster mushroom (Pleurotus ostreatus)

Menara Perkebunan

Firda Dimawarnita¹  Tri-Panji² 

[1] Indonesian Research Institutes for Biotechnology and Bioindustry ;Indonesian Research Institutes for Biotechnology and Bioindustry;

关键词: opefb;    cmc;    delignification;    pleurotus ostreatus;    xrd;    sem;   

DOI  :  10.22302/ribb.jur.mp.v86i2.304

来源: DOAJ

【 摘 要 】

Oil palm empty fruit bunches (OPEFB) contain high organic materials that can be used as medium for growing white oyster mushroom (Pleurotus ostreatus).Cellulose content in the OPEFB is high (33%), enabling it to be converted to carboxymethyl cellulose (CMC). This study determined the characteristics of the CMC produced from the waste of growth media of oyster mushrooms (baglog). The composition of the baglog consists of 70.3% OPEFB; 23.4% sawdust; 4.5% bran; 1.3% CaCO3; and 0.4% TSP. The CMC was prepared from the ex-baglog of the mushrooms including delignification, alkalization, carboxylation, and characterization of the product using Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Difraction (XRD) and Scanning Electron Microscopy Analysis (SEM). The results showed that the raw material after treatment contained 80.20% a cellulose, 12.32% hemicellulose, and no lignin was found. FTIR-based functional group analysis of the CMC and the commercial CMC was found to be present at 1091,37 cm-1and 1016,84 cm-1for the C-O bond. SEM analysis of the sample with no chemical bleaching for further delignification showed that small impurities were still present. The CMC treated with 10% sodium hydroxide exhibited 0.64 degree of substitution, 43 cP viscosity, and 73.40% purity. Based on these results, ex-baglog of white oyster mushroom can be extracted into CMC.

【 授权许可】

Unknown