METHOD OF PRODUCING SUGARY STARCH PRODUCTS Russian patent published in 2025 - IPC C13K1/06 

FIELD: food industry.

SUBSTANCE: proposed method of producing sugary starch products involves acid or enzymatic hydrolysis of starch suspension, purification of glucose syrup and thickening of glucose syrup. Said method can be used to produce caramelized starch molasses from corn starch, or high-sugar starch molasses from wheat starch, or caramelized starch molasses from potato starch, or maltose starch molasses from barley starch, or low-sugar starch molasses from tapioca starch, or high-sugar starch molasses from a mixture of rice and potato starch, taken at ratio of 2:1. In particular, to obtain caramelized starch molasses from corn starch, a starch suspension with 38–40% of dry substances (DM) is prepared and boiled out by starch gelatinisation at temperature of 90 °C for 5 minutes. First stage of starch hydrolysis - acid liquefaction to 10–12% of reducing substances is carried out, neutralized, cooled and pH is adjusted. After that, the second stage of starch hydrolysis is carried out - enzymatic or acid saccharification to PB = 34–44%. Then enzymes are inactivated or neutralized. Glucose syrup is purified from mineral substances, protein and melanoidins using baromembrane technologies by microfiltration using microfiltration membranes with pore size of 100–0.1 mcm and ultrafiltration using ultrafiltration membranes with pore size of 0.01–0.1 mcm. Further, glucose syrup is purified by electrolysis as a result of successive passage of electric current at current density of 10 mA/cm³ and temperature of 20°With glucose syrup after acidification to pH = 2 for 15 minutes. Then glucose syrup is purified by electrolysis as a result of successive passage of electric current at current density of 10 mA/cm³ and temperature 20 °C through glucose syrup after its alkalization to pH = 9 for 15 minutes and thickening to DM = 78% by means of reverse osmosis using membranes with pore size of 0.001–0.0001 mcm.

EFFECT: invention provides development of a highly efficient and cheap method of producing sugary starch products: starch molasses of different carbohydrate composition, with good consumer characteristics: transparency, low amount of impurities: albumen, proteins, melanoidins and mineral substances due to use of purification by baromembrane methods.

1 cl, 10 ex