The invention provides an
oligosaccharide oat beverage capable of treating hyperlipoidemia and hyperglycemia and improving
gastrointestinal tract function and a manufacturing method thereof by
hydrolysis of three enzymes and fine
grinding. The manufacturing method comprises the following steps: carrying out fine
grinding on the oat
meal to obtain the
powder of which the average particle size is less than about 100 mu m, dissolving the oat
powder in water to form oat
slurry, and adding alpha-
amylase, beta-
amylase and trans-
glucosidase to carry out
enzyme treatment, thereby obtaining the oat beverage with rich functional components. The
oligosaccharide oat beverage integrally reserves oat beta-
dextran, and also contains oligo-
isomaltose component of which the content is higher than that in common oat products. The manufacturing method can integrally reserve the nutritional components of the whole oat grains and omit the filter operation, thereby being beneficial to increasing the utilization ratio of raw materials; and the method is completed under the conditions of
fermentation and sterilization in the optimal short time, thereby avoiding the possibility of rancidity of oat
slurry in the
processing procedure. When the
oligosaccharide oat beverage is used for human testing for assessing physiologic effect, the test proves that the oligosaccharide oat beverage can lower the
total cholesterol, low-density
lipoprotein cholesterol,
triglyceride and fasting blood-glucose value in blood. The oligosaccharide oat beverage tastes savoury, thick and smooth like milk, and maintains the natural
flavor of oat; and thus, the invention changes the traditional way for eating oat, greatly raises the
nutrition health-care value of oat processed products, and has the potentials of preventing and treating hyperlipoidemia, hyperglycemia and other life-style related diseases and improving the
gastrointestinal tract function.