NUTRIENT MEDIUM FOR COMPRESSED BAKERS YEASTS ACTIVATION PRODUCTION METHOD Russian patent published in 2009 - IPC C12N1/18 

FIELD: food industry.

SUBSTANCE: method provides for soaking of whole barley grain in acidated water with components ratio 1:3 at temperature 40°C and medium pH 3.0 during 60 minutes. It is processed with enzyme preparation "BIOBAKE-721" in quantity 0.1-0.2% as dry substance during 30-60 minutes. Moisturised grain is dispersed till crushing grade not more than 300 micron and dried. Redispersion till crushing grade not more than 200 micron is performed. Obtained hydrolysate is mixed with water to create suspension. Suspension is processed with enzyme preparation "BAN-480 L" in quantity 0.02-0.03% as dry substance with water duty 1:3, temperature 85-90°C and medium pH 4.5-5.0 during 50-60 minutes. After that suspension is boiled during 10 minutes and cooled down till temperature 55-60°C. Hydrolysis is performed by enzyme preparation "SUN EXTRA L" in quantity 0.06-0.08% as dry substance with water duty 1:3, at temperature 55-60°C and medium pH 4.5-5.0 during 40-60 minutes.

EFFECT: increased biotechnological properties of yeasts, reduced activation time, reduced end product cost.

6 tbl, 2 ex