Dissolution study of bacterial cellulose (nata de coco) from local food industry

Solubility behavior & structural changes

Manisha Pandey, Muhammad Mustafa Abeer, Mohd Cairul Iqbal Mohd Amin

Research output: Contribution to journalArticle

6 Citations (Scopus)

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 inter- and 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.

Original languageEnglish
Pages (from-to)89-93
Number of pages5
JournalInternational Journal of Pharmacy and Pharmaceutical Sciences
Volume6
Issue number6
Publication statusPublished - 2014

Fingerprint

Cocos
Food Industry
Cellulose
Solubility
Urea
X-Ray Diffraction
Hydrogen
Sodium Hydroxide
Fourier Analysis
Fourier Transform Infrared Spectroscopy
Regeneration

Keywords

  • Bacterial cellulose
  • FTIR
  • NaOH/urea
  • Nata de coco
  • Solubility
  • X-ray diffraction

ASJC Scopus subject areas

  • Pharmaceutical Science
  • Pharmacology

Cite this

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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 inter- and 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.",
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