Hoechst Aktiengesellschaft

Udo Scharf

Merten Schlingmann

Gert-Wolfhard Von Rymon Lipinski

Traudel Kachholz

Functional hydrolyzates are prepared from microbial protein isolates, with

Functional protein hydrolyzates, a process for their preparation, use of

Products which are soluble without opalescence even at pH 3 and which, because of their reproducible composition, are particularly well suited as a source of nitrogen for organisms are obtained by enzymatic degradation of uniform microbial cell aggregates, using endoproteases, and isolation of the protein fraction up to 2,000 Dalton, preferably from 400 to 1,500 Dalton.

Process for cultivation of organisms wherein a uniform protein from

Substances producing an undesired odor and taste can be removed from microbial protein materials if these materials are treated with aqueous solutions which contain a phosphate and/or a hydrophilic low molecular weight aliphatic compound which contains at least two functional groups from the series comprising hydroxy, formyl, keto and carboxy. Preferred aliphatic extraction auxiliaries are flavoring acids, sugars and polyols, and phosphates are orthophosphates and diphosphates. The extraction can also be carried out in association with reducing the nucleic acid content of defatted cell aggregates.

Growing community of inventors

Kelkheim, Germany

Udo Scharf