Processing of yeast refuse and resulting product

Details Processing of yeast refuse and resulting product Processing of yeast refuse and resulting product

1995-06-07

1999-10-19

Prats, Francisco

Chemistry: molecular biology and microbiology

Micro-organism, per se ; compositions thereof; proces of...

Fungi

435100, 4352542, 4352551, 435101, 53612312, C12N 114, C12P 1904, C08B 3700

Patent

active

059688114

ABSTRACT:
Yeast refuse having a solids content not exceeding 20% by weight is digested with a food grade alkaline salt such as sodium bicarbonate, whole cells are separated from the extracted refuse so as to produce a material rich in disrupted cell walls which is then treated with an alkaline extraction agent and bleached either before or after the separation step, followed by lowering the pH of said bleached material using a food grade acid such as dilute hydrochloric acid. The product comprises a yeast beta-glucan which is substantially free of yeast cells, and which predominantly comprises a multiplicity of yeast ghosts or shells comprising substantially uncollapsed yeast cell walls. The yeast ghosts or shells contain a substantially lower quantity of yeast cell contents relative to the whole cells of the yeast refuse.

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