Monsanto Company

Cp Kelco U.s., Inc.

Universal Foods Corporation

Getty Scientific Development Company

Randal A Hassler

Daniel H Doherty

John D Marrelli

Rebecca W Vanderslice

Donna M Ferber

Michael J Yarus

Donald L Heefner

Richard D Medwid

Hans H Liao

Kathleen S Sniff

Variant xanthan gums are provided which include a water-soluble polysaccharide polymer comprising repeating pentamer units having a D-glucose:D-mannose:D-glucuronic acid ratio of about 2:2:1, and a water-soluble polysaccharide polymer comprising repeating tetramer units having a D-glucose:D-mannose:D-glucuronic acid ratio of about 2:1:1. The D-glucose moieties are linked in a beta-&lsqb;1,4&rsqb; configuration. The inner D-mannose moieties are linked in an alpha-&lsqb;1,3&rsqb; configuration, generally to alternate glucose moieties. The D-glucuronic acid moieties are linked in a beta-&lsqb;1,2&rsqb; configuration to the inner mannose moieties. The outer mannose moieties are linked to the glucuronic acid moieties in a beta-&lsqb;1,4&rsqb; configuration. Processes for preparing the polysaccharide polymers are also provided.

Genetic control of acetylation and pyruvylation of xanthan based polysaccharide polymers

Water-soluble polysaccharide polymers are provided including a polymer composed of repeating pentamer units having a D-glucose:D-mannose:D-glucuronic acid ratio of about 2:2:1, and a polymer composed of repeating tetramer units having a D-glucose:D-mannose:D-glucuronic acid ratio of about 2:1:1. The D-glucose moieties are linked in a beta-�1,4! configuration. The inner D-mannose moieties are linked in an alpha-�1,3! configuration, generally to alternate glucose moieties. The D-glucuronic acid moieties are linked in a beta-�1,2! configuration to the inner mannose moieties. The outer mannose moieties are linked to the glucuronic acid moieties in a beta-�1,4! configuration. Also an isolated acetylase deficient mutant of Xanthomonas is used in a process to produce the polysaccharide.

Preparation of water-soluble non-acetylated polysaccharide polymer

Variant xanthan gums are provided which include a water-soluble polysaccharide polymer comprising repeating pentamer units having a D-glucose:D-mannose:D-glucuronic acid ratio of about 2:2:1, and a water-soluble polysaccharide polymer comprising repeating tetramer units having a D-glucose:D-mannose:D-glucuronic acid ratio of about 2:1:1. The D-glucose moieties are linked in a beta- 1,4! configuration. The inner D-mannose moieties are linked in an alpha- 1,3! configuration, generally to alternate glucose moieties. The D-glucuronic acid moieties are linked in a beta- 1,2! configuration to the inner mannose moieties. The outer mannose moieties are linked to the glucuronic acid moieties in a beta- 1,4! configuration. Processes for preparing the polysaccharide polymers are also provided.

Genetic control of acetylation and pyruvylation of xanthan based

A culture for the production of xanthophylls comprising Nospongiococcum excentricum ATCC 40335 and mutants thereof. The culture having a dry cell weight xanthophyll content of at least about 0.65% and being capable of growing to a cell density of greater than about 40 grams per liter. The culture also comprising: carbon, phosphate, sulfate, iron, magnesium, and nitrogen.

Carotenoid producing culture using Nespongiococcum excentricum

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Lafayette, CO, United States of America

Randal A Hassler