TH3339B - Soluble rice protein thickener - Google Patents

Abstract

This invention relates to a method for the preparation of soluble rice protein concentrate. with reduced levels of manganese, aluminum, selenium and phytic acid and improved digestibility from the rice feedstock consisting of The digestion of raw materials that have been reduced to a smaller grain size to enable Enzyme activity is effective in aqueous medium with alpha-amylase enzyme at controlled pH and temperature for a long time. enough to dissolve the texture of the rice flour and cause it to be liquid mixture Heating the liquid mixture of rice flour at 105 cc to 130 cc for 30 to 60 min. Separating the high protein rice starch from the rice syrup. Reaction of high protein rice flour mixture with enzyme Protease at pH and controlled temperature with enzyme dosage and duration one to dissolve the protein of rice Purification of the protein-digested mixture to produce a soluble rice protein concentrate with reduced manganese, aluminum, selenium and phytic acid content. and has the ability to be digested better Soluble rice protein concentrate contains more than 16% protein on the solids basis and contains the following components per gram: manganese content 50 mcg or less, aluminum content less than 15 mcg, staggered content. decreased lenium at least 25% compared to rice raw materials, and the phytic acid content was less than 15 mg, and the digestibility of More than 90% protein

Claims (4)

1. Method for preparing soluble rice protein concentrate from rice raw materials containing manganese, aluminum, selenium and phytic acid. This consists of a step (a) digestion of the raw material that is granulated into smaller grains so that enzyme function Effective in aqueous medium with alpha-amylase enzyme where the pH and temperature are controlled as long enough to dissolve the contents of the starch and make it as a liquid mixture (b) heating the liquid mixture at 105 °C to 130 °C for 30 to 60 minutes; (c) separating the high-protein rice starch from the dissolved rice carbohydrates; (d) the reaction. of a mixture of high protein rice flour with Protease enzymes at controlled pH and temperature with enzyme content and time to dissolve rice proteins. insoluble to obtain improved soluble rice protein concentrate To have better digestibility and reduce the content of manganese, aluminum, selenium and phytic acid. More than 16% protein in terms of solids. 3. Claim 1 method in which the soluble rice protein concentrate has protein content from 16% to 90% on the solid fraction. 4. Claim 1 method in which the isolated soluble rice protein concentrate contains manganese less than 50 micrograms per gram of protein. 5. Claim 1 method, in which the isolated soluble rice protein concentrate contains less than 15 micrograms of aluminum per gram of protein. 6. Claim Method 1 The content of selenium in isolated soluble rice protein concentrate was reduced by at least 25% on a protein-related basis with rice raw materials. 7. The process of claim 1, in which the isolated soluble rice protein concentrate contains less than 15 mg/g of phytosterol. 8. Claim 1 method in which the isolated soluble rice protein concentrate contains less than 5 mg/g of phytic acid per gram. 9. Claim 1 method in which the soluble rice protein concentrate has a protein digestibility greater than 90% 1 0. Claim 1 method in which the rice raw material is decomposed. until the amount of dextrose idiovalent (DE)5-50 equivalent 1 1. The method of claim 1, where the rice flour mixture is heated by direct steam spraying 1 2. Claim method 1, where the rice flour mixture is heated by direct steam spray at 105-130 c. for 30-60 s. 3. Claims 1 method in which the rice flour mixture is heated by direct steam spraying at 110C to 120C for 40-50 s 1 4. Claim 1 method of separation of dissolved rice protein from undissolved rice meal at pH 6 to 8.