Method for preparing red bayberry dietary fiber powder

Abstract

The invention relates to a method for preparing red bayberry dietary fiber powder, which belongs to the technical field of agricultural byproduct waste deep processing and is characterized by comprising the following steps of: (1) red bayberry pomace pretreatment; (2) red bayberry pomace rinsing; (3) enzymolysis; (4) expression filtration; (5) drying and crushing; (6) extruding activation; and (7) carrying out ultramicro crushing under low-temperature. The invention has the advantages that (1) the yield of dietary fibers can be increased to 60 percent or above; (2) the internal components of the dietary fibers can be optimized and recombined by adopting an extruding activation technology, enabling fiber macromolecules to be partially converted into non-digestible soluble polysaccharide after the materials suffer from the strong shearing action in an extruder cylinder, and thereby, high-activity multifunction dietary fibers with stable expansibility and water binding capacity are obtained; (3) the physiological activity of the blood sugar-reducing components of the dietary fiber is kept to the maximum limit by adopting a low-temperature ultramicro crushing technology; and (4) the proportion of the high-activity fibers in the red bayberry dietary fibers is far higher than that of grain fibers and the like.

Description

technical field [0001] The invention belongs to the technical field of deep processing of agricultural and sideline product wastes, and in particular relates to a method for preparing dietary fiber powder using discarded pomace after processing bayberry. Background technique [0002] Red bayberry is the most competitive characteristic fruit in Zhejiang Province. With the continuous increase of bayberry production in recent years, the deep processing industry of bayberry has also developed rapidly. But concentrated red bayberry juice, red bayberry juice drink, red bayberry wine etc. can produce approximately account for about 13% red bayberry weight leftovers---red bayberry dregs in the process of processing and utilizing fresh red bayberry. At present, the food industry using bayberry as a resource has begun to take shape, but bayberry residue has not been well developed and utilized, and most of it is discarded as waste, which not only causes a huge waste of agricultural an...

AI Technical Summary

Problems solved by technology

[0003] At present, some dietary fiber products have been listed in my country, such as apple dietary fiber, while red bayberry dietary fiber products are still in the research stage, such as the research experiment on the preparation of functional dietary fiber technology by enzymatic hydrolysis of red bayberry pomace done by Ni Liang of Zhejiang University. The results of the research are limited to the small-scale test of the extraction of dietary fiber from bayberry in the laboratory. There is no industrial technology research on the extracted dietary fiber, and there is no report on the technical method that can be formally put into industrial production in this project.