Enzymatic grafting of hexyloxyphenol onto chitosan to alter surface and rheological properties

Biotechnology and Bioengineering

Volumn 70, Issue 5, 2000, Pages 564-573

  Chen, Tianhong ^a   Kumar, Guneet ^a   Harris, Michael T ^a   Smith, Paul J ^b   Payne, Gregory F ^a,c  

^a UNIVERSITY OF MARYLAND   (United States)

^b UNIVERSITY OF MARYLAND BALTIMORE COUNTY   (United States)

^c University of Marylandw Baltimore County   (United States)

Author keywords

Biopolymer; Chitosan; Clean manufacturing; Enzymatic synthesis; Hexyloxyphenol; Polymer modification; Renewable resources; Rheology; Tyrosinase

Indexed keywords

BIOPOLYMERS; CHEMICAL MODIFICATION; ENZYMES; INFRARED SPECTROSCOPY; KETONES; METHANOL; MIXTURES; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; PHENOLS; REACTION KINETICS; RHEOLOGY; SYNTHESIS (CHEMICAL);

CHITOSAN; CLEAN MANUFACTURING; ENZYMATIC GRAFTING; ENZYMATIC MODIFICATION; HEXYLOXYPHENOL; NONEZYMATIC REACTION; TYROSINASE;

GRAFTING (CHEMICAL);

BIOPOLYMER; CHITOSAN; HEXYLOXYPHENOL; MONOPHENOL MONOOXYGENASE; PHENOL DERIVATIVE; UNCLASSIFIED DRUG;

ANALYTIC METHOD; ARTICLE; CHEMICAL BINDING; CONTACT ANGLE; COVALENT BOND; ENZYME CHEMISTRY; FLOW KINETICS; HYDROPHOBICITY; OXIDATION; POLYMERIZATION; SPECTROSCOPY; SURFACE PROPERTY; VISCOSITY;

EID: 0034610532     PISSN: 00063592     EISSN: None     Source Type: Journal    
DOI: 10.1002/1097-0290(20001205)70:5<564::AID-BIT11>3.0.CO;2-W     Document Type: Article

References (56)

1. Cuticular sclerotization in insects
2. Activity of mushroom polyphenol oxidase in organic medium
3. Detection of cross-links in insect cuticle by REDOR NMR spectroscopy
4. Hydrophobic derivatives of chitosan: Characterization and rheological behaviour
5. Site-specific hydroxylation of aromatic compounds by polyphenol oxidase in organic solvents and water
6. Hydrophobic microphase formation in surfactant solutions containing an amphiphilic graft copolymer
7. Physicochemical and kinetic properties of mushroom tyrosinase
8. Characterization and optimization of immobilized polyphenol oxidase in low water organic solvents
9. Synthesis of N-[(3-hydroxy-2,3-dicarboxy)ethyl]chitosan: A new water-soluble chitosan derivative
10. Formation of branched-chain, soluble polysaccharides from chitosan
11. Cellulose derivatives: Modification, characterization, and nanostructures
12. Selective N-acetylation of chitosan
13. Solid-state NMR analysis of crosslinking in mussel protein glue
14. Oxidation of tyrosine residues in proteins by tyrosinase
15. Linear and nonlinear rheological responses in aqueous systems of hydrophobically modified chitosan and its unmodified analogue
16. Collagen-based bioadhesive barnacle cement mimic. I. Chemical and enzymatic studies
17. Quinone-amine polymers. II. 1,3-Bis(3-aminophenoxy)benzene-p-benzoquinone oligomers
18. Regioselective oxidation of phenols catalyzed by polyphenol oxidase in chloroform
19. Viscosity of dilute aqueous solutions of hydrophobically modified chitosan and its unmodified analogue at different conditions of salt and surfactant concentrations
20. Effect of surfactant concentration, pH, and shear rate on the rheological properties of aqueous systems of a hydrophobically modified chitosan and its unmodified analogue
21. Enzymatic grafting of a natural product onto chitosan to confer water solubility under basic conditions
22. Enzymatic gelation of the natural polymer chitosan
23. Structure of physical gels in the EHEC-SDS-water system
24. Optimization of hydroxylation of tyrosine and tyrosine-containing peptides by mushroom tyrosinase
25. Kinetic studies on the hydroxylation of p-coumaric acid to caffeic acid by spinach beet phenolase
26. Chitosan gels: 1. Study of reaction variables
27. Chitosan gels: 2. Mechanism of gelation
28. An enzyme-initiated domino hydroxylation-oxidation-carbo-Diels-Alder reaction cascade
29. N-(Carboxymethylidene)chitosans and N-(carboxymethyl)chitosans: Novel chelating polyampholytes obtained from chitosan glyoxalate
30. Chitosans carrying the methoxyphenyl functions typical of lignin
31. Tyrosinase-mediated quinone tanning of chitinous materials
32. Quinone-amine polymers: 10. Use of calcium hypochlorite in the synthesis of polyamine-quinone (PAQ) polymers
33. Quinone-amine polymers: 18. A novel method for the synthesis of poly(alkyl aminoquinone)s
34. Characterization of association phenomena in aqueous system of chitosan of different hydrophobicity
35. Enzyme-catalyzed polymer modification: Reaction of phenolic compounds with chitosan films
36. Chemical modifications of biopolymers by quinones and quinone methides
37. 13C MNR
38. Chitosan gels. 3a. The formation of gels by reaction of chitosan with glutaraldehyde
39. Progress in the enzymatic hydrolysis of cellulose derivatives
40. 15N NMR
41. Enzymatic modification of the synthetic polymer polyhydroxystyrene
42. Evaluation of different absorbance ratios from infrared spectroscopy for analyzing the degree of deacetylation in chitin
43. Molecular mechanisms for cuticular sclerotiation
44. Viscometric and spectroscopic studies on the solution behaviour of hydrophobically modified cellulosic polymers
45. Interactions of hydrophobically modified (hydroxyethyl)cellulose with various added surfactants
46. Binding of SDS to ethyl(hydroxyethyl)cellulose. Effect of hydrophobic modification of the polymer
47. Effect of hydrophobic modification of a nonionic cellulose derivative on the interaction with surfactants. Rheology
48. The action of o-dihydric phenols in the hydroxylation of p-coumaric acid by phenolase from leaves of spinach beet (Beta vulgaris L.)
49. The phylogeny and chemical diversity of quinone-tanned glues and varnishes
50. Tyrosinase inactivation in organic solvents
51. Wet chemical approaches to the characterization of organic surfaces: Self-assembled monolayers, wetting, and physical-organic chemistry of the solid-liquid interface
52. Some chemical and analytical aspects of polysaccharide modifications. Formation of branched-chain, soluble chitosan derivatives
53. Chitosan based water-resistant adhesive. Analogy to mussel glue
54. Insolubilizing and adhesive studies of water-soluble model proteins
55. Partition coefficients of substrates and products and solvent selection for biocatalysis under nearly anhydrous conditions
56. Role of L-3,4-dihydroxyphenylalanine in mussel adhesive proteins