Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing compound containing saccharide radical
Patent
1992-09-11
1994-05-03
Naff, David M.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing compound containing saccharide radical
43525234, 435874, C12P 1904, C12N 120
Patent
active
053087615
ABSTRACT:
A method of biosynthetically acetylating seaweed alginates by modification with certain Pseudomonas syringae, such as P. syringae subsp. phaseolicola ATCC 19304, is disclosed. Acetylation occurs almost entirely in the 0-2 and 0.3 positions of the mannuronic acid residues. The acetylated alginates have several desirable properties. For example, acetylation increases the polymers' viscosity; it increases the flexibility of their gels; and it can produce a strong, thermoreversible-gel network. Acetylation increases the viscosity of the polymer, decreases ion-binding capacity, and decreases the ability to gel with calcium. The degree of acetylation can be controlled by controlling the exposure time, which allows the properties of the resulting polymer to be custom-made.
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Day Donal F.
Lee Jin W.
Board of Supervisors of Louisiana State University and Agricultu
Meller Michael
Naff David M.
Runnels John H.
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