Dissolution study of bacterial cellulose (nata de coco) from local food industry: Solubility behavior & structural changes
Year: 2014
Type: article
Abstract: Dissolution and regeneration of bacterial cellulose (BC) extracted from nata de coco using different ratio of sodium hydroxide (NaOH) and urea as a solvent was investigated. The dissolution and structural properties of regenerated BC were determined by Fourier transform infrared spectrometric analyzer and X-ray diffraction. The solubility of BC increased significantly with the increasing concentration up to 8%. In contrast, urea alone had no effect on solubility of BC but an increase in concentration of urea (up to 4% w/v) combined with 6% or 8% of NaOH resulted in an increase of BC solubility. X-ray diffraction and FTIR results indicate that NaOH is the primary agent in cleaving of the interand intra-hydrogen bonds in cellulose. An increase in urea concentration was found to be responsible for the transformation of cellulose I to II in the presence of NaOH.
Institution: National University of Malaysia
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2994280888