METHOD FOR PRODUCTION OF SODIUM ASCORBATE FOOD ADDITIVE Russian patent published in 2015 - IPC C07D307/62 

FIELD: food industry.

SUBSTANCE: invention relates to a method for production of sodium ascorbate food additive intended for usage in food products as an antioxidant for fat protection against oxidation, a colouration stabiliser, a bakery improver and vitamin C. Ascorbic acid water solution is neutralised with sodium carbonates at a temperature of 40°C; 46-48%-sodium hydroxide solution is added during 30-40 minutes till pH value is within the range of 6.5-8.0, the weight ratio of ascorbic acid, water, sodium carbonates and 46-48%- sodium hydroxide water solution being 1:(0.84-1.0):(0.02-0.03):(0.41-0.46). Sodium ascorbate isolation is performed by deposition with 96%-alcohol at a temperature of 30-50°C during 2-3 hours, the volume ratio of alcohol to water being (3.4-3.8):1.

EFFECT: invention allows to obtain improved quality sodium ascorbate with the target product high yield (94-96%), reduce the process duration and decrease alcohol expenditure.

1 tbl, 3 ex