Catabolite non-repressed substrate-limited yeast strains and method of making
AssigneeThe Pillsbury Company
InventorDavid J. Domingues
Life of this patent
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Abstract
A dough product which contains a yeast cell of the genus-species SACCHAROMYCES CEREVISIAE, that is catabolite non-repressed, and utilizes only galactose as a carbohydrate source in the presence of glucose. The yeast is interspersed into a dough matrix and proofed in a container. This method decreases the proof time of bread dough by about one-half the normal time than by using a conventional galactose substrate limited yeast. The yeast cells in the dough stop growing when the temperature is less than about 10.degree. C.
Claims9
A product comprising a yeast cell of the genus-species Saccharomyces cerevisiae, characterized by a yeast cell from one or more yeast cell deposits within the group consisting of ATCC Nos. 74306, 74307, 74308, 74309 and 74310, derived from a haploid yeast strain that is catabolite non-repressed, capable of utilizing solely galactose as a carbohydrate source in the presence of glucose, and a dough matrix that includes nutrients for the yeast cell, wherein the yeast cell is interspersed in the matrix.
A method for decreasing proof time of bread dough comprising:
- providing a yeast cell of the genus-species Saccharomyces cerevisiae, characterized by a yeast cell from one or more deposits within the group consisting of ATCC Strain Nos. 74306, 74307, 74308, 74309 and 74310, derived from a haploid yeast cell that is catabolite non-repressed, capable of utilizing galactose as a sole carbohydrate source in the presence of glucose and capable of growing in a mixture having a concentration of ethanol of at least about 6% by weight;
- interspersing the yeast into a dough matrix;
- and
- transferring the dough with the yeast into a container where the dough is proofed.
Dependencies are inferred from the claim text.