Isolation of Cellulose Nanocrystals from Bacterial Cellulose Produced from Pineapple Peel Waste Juice as Culture Medium

Cellulose nanocrystals (CNC) were isolated by the sulfuric acid hydrolysis of bacterial cellulose (BC) produced by Gluconacetobacter xylinus using pineapple peel waste juice as culture medium. Optimal conditions of the acid hydrolysis were obtained at concentration of sulfuric acid of 50%, hydrolysi...

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Bibliographic Details
Published in:Procedia chemistry 2015, Vol.16, p.279-284
Main Authors: Anwar, Budiman, Bundjali, Bunbun, Arcana, I. Made
Format: Article
Language:English
Subjects:
Bacterial Cellulose
Cellulose Nanocrystals
FTIR of Cellulose Nanocrystals
Pineapple Peel Waste
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Summary:Cellulose nanocrystals (CNC) were isolated by the sulfuric acid hydrolysis of bacterial cellulose (BC) produced by Gluconacetobacter xylinus using pineapple peel waste juice as culture medium. Optimal conditions of the acid hydrolysis were obtained at concentration of sulfuric acid of 50%, hydrolysis time ranging 25∼40minutes and temperature at 50°C. The FTIR study shows that the CNC spectrum were similar with BC which indicated that both have similar chemical composition; however there are some peaks alteration at 2900 cm−1 and 1430 cm−1 which indicated that BC has changed into CNC. The crystallinity of CNC determined by FTIR was found to be higher than BC. By TEM observation, the CNC particles had average length of 325nm and diameter of 25nm with average aspect ratio (L/D) around 13. The TEM images also show the morphology of CNC that has rod-like structure.
ISSN:1876-6196
1876-6196
DOI:10.1016/j.proche.2015.12.051