Novex Rt

Ferenc Simek

Karoly Vass

Gyorgy Karpati

Eva Szechenyi-Marton

A protein-vitamin concentrate having a high proportion of dry yeast and a protein content of at least 50% and particularly rich in B-vitamins, is produced by cultivating yeast in a culture medium containing animal or vegetable fat as a source of carbon, at a pH of 4 to 6 and a temperature of 30.degree. to 40.degree.C. and an aeration intensity of 150 to 300 cubic meters of air per square meter of fermenter base area per hour, the culture containing also an ammonium salt or carbamide as a source of nitrogen, the nitrogen content of the culture medium being 0.1-0.2%, the N:P ratio being 4:1, potassium and chloride ions being present in the form of 0.1-0.2% KCl, and Mg and SO.sub.4 ions being present as 0.080-0.1% MgSO.sub.4.

Growing community of inventors

Budapest, Hungary

Ferenc Simek