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Title: Modified carbohydrate-chitosan compounds, methods of making the same and methods of using the same

Compositions of matter are provided that include chitosan and a modified carbohydrate. The modified carbohydrate includes a carbohydrate component and a cross linking agent. The modified carbohydrate has increased carboxyl content as compared to an unmodified counterpart carbohydrate. A carboxyl group of the modified carbohydrate is covalently bonded with an amino group of chitosan. The compositions of matter provided herein may include cross linked starch citrate-chitosan and cross linked hemicellulose citrate-chitosan, including foams thereof. These compositions yield excellent absorbency and metal chelation properties. Methods of making cross linked modified carbohydrate-chitosan compounds are also provided.
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OSTI Identifier:
North Carolina State University (Raleigh, NC) GFO
Patent Number(s):
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Resource Relation:
Patent File Date: 2011 Mar 21
Research Org:
North Carolina State Univ., Raleigh, NC (United States)
Sponsoring Org:
Country of Publication:
United States

Works referenced in this record:

Cross-linking chitosan into UV-irradiated cellulose fibers for the preparation of antimicrobial-finished textiles
journal, July 2009

Novel superabsorbent cellulose-based hydrogels crosslinked with citric acid
journal, November 2008
  • Demitri, Christian; Del Sole, Roberta; Scalera, Francesca
  • Journal of Applied Polymer Science, Vol. 110, Issue 4, p. 2453-2460
  • DOI: 10.1002/app.28660

Aspects of the preparation of starch microcellular foam particles crosslinked with glutaraldehyde using a solvent exchange technique
journal, February 2007
  • El-Tahlawy, Khaled; Venditti, Richard A.; Pawlak, Joel J.
  • Carbohydrate Polymers, Vol. 67, Issue 3, p. 319-331
  • DOI: 10.1016/j.carbpol.2006.05.029

Preparation and properties of hydrogels based on hemicellulose
journal, August 1998

Separation, characterization and hydrogel-formation of hemicellulose from aspen wood
journal, December 2000

Chitosan disrupts the barrier properties of the outer membrane of Gram-negative bacteria
journal, December 2001
  • Helander, I. M.; Nurmiaho-Lassila, E.-L.; Ahvenainen, R.
  • International Journal of Food Microbiology, Vol. 71, Issue 2-3, p. 235-244
  • DOI: 10.1016/S0168-1605(01)00609-2

Polyelectrolyte complexes of sodium alginate with chitosan or its derivatives for microcapsules
journal, January 1997

Synthesis and antimicrobial activity of a water-soluble chitosan derivative with a fiber-reactive group
journal, January 2004

Application of a fiber-reactive chitosan derivative to cotton fabric as an antimicrobial textile finish
journal, June 2004

Antibacterial action of chitosan and carboxymethylated chitosan
journal, January 2000

Carboxymethyl xylan—synthesis and detailed structure characterization
journal, May 2006

Characterization of citric acid/glycerol co-plasticized thermoplastic starch prepared by melt blending
journal, July 2007

Preparation, characterization and antimicrobial activity of chitosan–Zn complex
journal, May 2004

Preparation of sugarcane bagasse hemicellulosic succinates using NBS as a catalyst
journal, September 2003

Miscibility studies of the blends of chitosan with some cellulose ethers
journal, February 2006

Synthesis and characterization of water-soluble O-succinyl-chitosan
journal, August 2003

Study on antimicrobial activity of chitosan with different molecular weights
journal, December 2003

A review of chitin and chitosan applications
journal, November 2000

Development of poly(vinyl alcohol) hydrogel for waste water cleaning. II. Treatment of N,N-dimethylformamide in waste water with poly(vinyl alcohol) gel with immobilized microorganisms
journal, December 1995
  • Okazaki, Masaki; Hamada, Tosihiro; Fujii, Hiroaki
  • Journal of Applied Polymer Science, Vol. 58, Issue 12, p. 2243-2249
  • DOI: 10.1002/app.1995.070581213

Crosslinked xylan as an affinity adsorbent for endo-xylanases
journal, January 1992

Metal complexation by chitosan and its derivatives: a review
journal, January 2004

Polymer blends and composites from renewable resources
journal, June 2006

Thermal processing of starch-based polymers
journal, December 2009