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US 2014/0273167 A1Published application
Systems and methods for yeast propagation
AssigneePOET Research, Inc.
InventorsNeelakantam V. Narendranath, Stephen M. Lewis
Life of this patent
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Abstract
The present invention relates to systems and methods for propagating yeast using a feedstock material such as starch and one or more enzymes (e.g., an enzyme cocktail) to break down the feedstock material into one or more monosaccharides at a sufficient rate so that the yeast can use the monosaccharides as a carbon source for producing more yeast cells while not producing an undue amount of alcohol.
Claims18
A method of propagating yeast comprising:
- providing a composition comprising:
- a propagation medium comprising:
- a nutrient source;
- a carbon source comprising a feedstock material having one or more polysaccharides and/or one or more oligosaccharides;
- and
- one or more enzymes that can convert at least a portion of the one or more polysaccharides and/or one or more oligosaccharides into one or more monosaccharides;
- and
- a first cell mass of the yeast, wherein the yeast can use at least a portion of the one or more monosaccharides to grow the first cell mass of the yeast for a time period to form a second cell mass of the yeast;
- and
- growing the first cell mass of yeast for a time period to form a second cell mass of yeast that is greater than the first cell mass of yeast.
7 more elements
A system for propagating yeast comprising:
- a propagation reactor vessel comprising a composition comprising:
- a propagation medium comprising:
- a nutrient source;
- a carbon source comprising a feedstock material having one or more polysaccharides and/or one or more oligosaccharides;
- and
- one or more enzymes that can convert at least a portion of the one or more polysaccharides and/or one or more oligosaccharides into one more monosaccharides;
- and
- a first cell mass of the yeast, wherein the yeast can use at least a portion of the one or more monosaccharides to grow the first cell mass of the yeast for a time period to form a second cell mass of the yeast that is greater than the first cell mass of yeast;
- and
- an aerator coupled to the propagation reactor vessel to aerate the composition.
7 more elements
Dependencies are inferred from the claim text.