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Structural and thermal characterization of galactomannans from genus Gleditsia seeds as potential food gum substitutes

Jiang, Jian-xin; Jian, Hong-lei; Carrasco, Cristhian LU ; Zhang, Wei-ming and Sun, Run-cang (2011) In Journal of the Science of Food and Agriculture 91(4). p.732-737
Abstract
BACKGROUND: Seed galactomannans are preferred hydrocolloids since they are comparatively cheap, non-toxic, eco-friendly and non-polluting during production and application. Galactomannans from seeds of three species of Gleditsia, namely G. sinensis, G. microphylla and G. melanacantha, were characterized in terms of structural and thermal properties. RESULTS: Gleditsia polysaccharides were characterized using both chemical and chromatographic methods, as well as Fourier transform infrared, H-1 nuclear magnetic resonance (NMR) and C-13 NMR spectroscopy, and it was shown that they consist of D-mannopyranose and D-galactopyranose residues. The mannose/galactose (M/G) ratio of galactomannans was 3.25, 3.31 and 2.30, respectively. It was also... (More)
BACKGROUND: Seed galactomannans are preferred hydrocolloids since they are comparatively cheap, non-toxic, eco-friendly and non-polluting during production and application. Galactomannans from seeds of three species of Gleditsia, namely G. sinensis, G. microphylla and G. melanacantha, were characterized in terms of structural and thermal properties. RESULTS: Gleditsia polysaccharides were characterized using both chemical and chromatographic methods, as well as Fourier transform infrared, H-1 nuclear magnetic resonance (NMR) and C-13 NMR spectroscopy, and it was shown that they consist of D-mannopyranose and D-galactopyranose residues. The mannose/galactose (M/G) ratio of galactomannans was 3.25, 3.31 and 2.30, respectively. It was also found that these polysaccharides differ from one another in values of M-w, M-n and polydispersity. X-ray diffraction confirmed the amorphous nature of Gleditsia galactomannans, although G. sinensis galactomannan showed a high crystallinity. Thermal analysis of the galactomannans by differential scanning calorimetry illustrated that their endothermic peaks ranged from 290 to 320 degrees C. CONCLUSION: Gleditsia polysaccharides are neutral galactomannans. The higher value of M/G ratio from G. sinensis and G. microphylla indicates that their gums offer an excellent alternative for locus bean gum. (C) 2011 Society of Chemical Industry (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
galactomannans, Gleditsia, structure, thermal behavior
in
Journal of the Science of Food and Agriculture
volume
91
issue
4
pages
732 - 737
publisher
Wiley-Blackwell
external identifiers
  • wos:000288142300017
  • scopus:79551631855
ISSN
1097-0010
DOI
10.1002/jsfa.4243
language
English
LU publication?
yes
id
51f0c4ba-35e3-4f66-a6c6-172b7bf92fa5 (old id 1869117)
date added to LUP
2011-04-06 13:34:25
date last changed
2017-10-01 04:05:02
@article{51f0c4ba-35e3-4f66-a6c6-172b7bf92fa5,
  abstract     = {BACKGROUND: Seed galactomannans are preferred hydrocolloids since they are comparatively cheap, non-toxic, eco-friendly and non-polluting during production and application. Galactomannans from seeds of three species of Gleditsia, namely G. sinensis, G. microphylla and G. melanacantha, were characterized in terms of structural and thermal properties. RESULTS: Gleditsia polysaccharides were characterized using both chemical and chromatographic methods, as well as Fourier transform infrared, H-1 nuclear magnetic resonance (NMR) and C-13 NMR spectroscopy, and it was shown that they consist of D-mannopyranose and D-galactopyranose residues. The mannose/galactose (M/G) ratio of galactomannans was 3.25, 3.31 and 2.30, respectively. It was also found that these polysaccharides differ from one another in values of M-w, M-n and polydispersity. X-ray diffraction confirmed the amorphous nature of Gleditsia galactomannans, although G. sinensis galactomannan showed a high crystallinity. Thermal analysis of the galactomannans by differential scanning calorimetry illustrated that their endothermic peaks ranged from 290 to 320 degrees C. CONCLUSION: Gleditsia polysaccharides are neutral galactomannans. The higher value of M/G ratio from G. sinensis and G. microphylla indicates that their gums offer an excellent alternative for locus bean gum. (C) 2011 Society of Chemical Industry},
  author       = {Jiang, Jian-xin and Jian, Hong-lei and Carrasco, Cristhian and Zhang, Wei-ming and Sun, Run-cang},
  issn         = {1097-0010},
  keyword      = {galactomannans,Gleditsia,structure,thermal behavior},
  language     = {eng},
  number       = {4},
  pages        = {732--737},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of the Science of Food and Agriculture},
  title        = {Structural and thermal characterization of galactomannans from genus Gleditsia seeds as potential food gum substitutes},
  url          = {http://dx.doi.org/10.1002/jsfa.4243},
  volume       = {91},
  year         = {2011},
}