DIETARY FIBER-ENRICHED NURUNGJI USING GRAIN BRAN AND MANUFACTURING METHOD OF THE SAME

摘要

PURPOSE: A manufacturing method of grain bran is provided to produce the grain bran which hardly occurs rancidity by treating processes including a drying process, a pulverizing process, a classification process, and a fraction process. CONSTITUTION: Grain bran is dried until the moisture content becomes 7.5% or less(S110). The dried grain bran is milled into fine powder(S120). The fine powder is assorted into minute bran powder with the average particle size of 20um or less, medium bran powder with the average particle size of more than 20um and under 200um, and coarse bran powder with the average particle size of more than 200um(S130). Water-soluble components are extracted from the medium bran powder through hot water extraction or ultrasonic wave extraction to obtain water-soluble fraction(S140). At least one selected from the minute bran powder and the water-soluble fraction is added to grains to manufacture scorched rice. The hot water extraction is performed by adding distilled water to the medium bran powder, and heating at 100 deg. C for at least 30 minutes while stirring to extract the water-soluble components. The ultrasonic wave extraction is performed by adding distilled water to the medium bran powder, and ultrasonic treating the mixture three times for 30 seconds each using a 20KHz ultrasonic emulsification device. [Reference numerals] (AA) Minute bran powder; (BB) Medium bran powder; (CC) Coarse bran powder; (S100) Bran assorting and refining process; (S110) Drying process; (S120) Pulverizing process; (S130) Classifying process; (S140) Dividing process/aqueous fraction extraction; (S150) Scorched rice manufacturing process; (S160) Conversion into feed grains