Next Article in Journal
Wearable and Implantable Wireless Sensor Network Solutions for Healthcare Monitoring
Next Article in Special Issue
A Simple Method to Improve Autonomous GPS Positioning for Tractors
Previous Article in Journal
Odor Removal Characteristics of a Laminated Film-Electrode Packed-Bed Nonthermal Plasma Reactor
Previous Article in Special Issue
Tree Classification with Fused Mobile Laser Scanning and Hyperspectral Data
Article Menu

Export Article

Open AccessArticle
Sensors 2011, 11(6), 5543-5560; doi:10.3390/s110605543

Sensing the Structural Differences in Cellulose from Apple and Bacterial Cell Wall Materials by Raman and FT-IR Spectroscopy

Institute of Agrophysics, Polish Academy of Science, Doświadczalna 4, 20-290 Lublin, Poland
*
Author to whom correspondence should be addressed.
Received: 9 March 2011 / Revised: 3 April 2011 / Accepted: 7 April 2011 / Published: 25 May 2011
(This article belongs to the Special Issue Sensors in Agriculture and Forestry)
View Full-Text   |   Download PDF [480 KB, uploaded 21 June 2014]   |  

Abstract

Raman and Fourier Transform Infrared (FT-IR) spectroscopy was used for assessment of structural differences of celluloses of various origins. Investigated celluloses were: bacterial celluloses cultured in presence of pectin and/or xyloglucan, as well as commercial celluloses and cellulose extracted from apple parenchyma. FT-IR spectra were used to estimate of the Iβ content, whereas Raman spectra were used to evaluate the degree of crystallinity of the cellulose. The crystallinity index (XCRAMAN%) varied from −25% for apple cellulose to 53% for microcrystalline commercial cellulose. Considering bacterial cellulose, addition of xyloglucan has an impact on the percentage content of cellulose Iβ. However, addition of only xyloglucan or only pectins to pure bacterial cellulose both resulted in a slight decrease of crystallinity. However, culturing bacterial cellulose in the presence of mixtures of xyloglucan and pectins results in an increase of crystallinity. The results confirmed that the higher degree of crystallinity, the broader the peak around 913 cm−1. Among all bacterial celluloses the bacterial cellulose cultured in presence of xyloglucan and pectin (BCPX) has the most similar structure to those observed in natural primary cell walls.
Keywords: Raman spectroscopy; FT-IR spectroscopy; cellulose; pectin; xyloglucan; Gluconacetobacter xylinus; crystallinity degree Raman spectroscopy; FT-IR spectroscopy; cellulose; pectin; xyloglucan; Gluconacetobacter xylinus; crystallinity degree
Figures

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Szymańska-Chargot, M.; Cybulska, J.; Zdunek, A. Sensing the Structural Differences in Cellulose from Apple and Bacterial Cell Wall Materials by Raman and FT-IR Spectroscopy. Sensors 2011, 11, 5543-5560.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top