Study on the Extraction of Soluble Dietary Fiber From Brewer's Spent Grains
WANG Yi-jing1, WU Hui-li2 (1.China National Institute of Food and Fermentation Industries, Beijing, 100027, China; 2.College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China)
The optimum conditions of the extraction of soluble dietary fiber from brewer's spent grains by chemical methods and enzymic methods was studied. At the optimum conditions of chemical methods, the yield of SDF is 13.37%. At the optimum conditions of enzymic methods, the yield of SDF is 4.94%. The colour of SDF extracted by chemical methods is the same as the colour of caramel. The SDF extracted by enzymic methods is yellow.