A kind of bean dregs dietary fiber superfine powder and preparation method thereof

Abstract

The invention relates to a bean dregs dietary fiber superfine powder and a preparation method thereof. The present invention uses wet ultrafine grinding and extrusion technology to process fresh bean dregs in time and process soybean dietary fiber powder in one step, that is, to obtain bean dregs meal by heating bean dregs to eliminate enzymes, remove fishy smell, grind, homogenize, extrude, and dry. Fiber micropowder. The present invention integrates the preparation of bean dregs dietary fiber and the modification of dietary fiber into one process, which simplifies the process; the process adopts all physical treatment methods, which avoids the safety caused by residues of additives or the impact on product composition. Negative effects and other issues, and no by-products, can realize the simultaneous completion of resource utilization and environmental protection. Compared with ordinary soybean dregs dietary fiber powder, the product of the present invention has enhanced function, improved taste and color, and passivated factors causing bad flavor, and is widely used in the fields of food and health food.

Description

technical field [0001] The invention belongs to the field of food processing, and in particular relates to a bean dregs dietary fiber superfine powder and a preparation method thereof. Background technique [0002] During the processing of traditional soy products in our country, a large amount of bean dregs will be produced. Bean dregs are rich in protein, fat, dietary fiber, etc., and are good healthy food resources. However, because okara has unacceptable peculiar smell, poor taste and anti-nutritional factors, if it is eaten directly or added to other foods, it will greatly affect the taste, texture and function of the product. At present, bean dregs are mostly simply treated as feed, which is not only a great loss economically, but also greatly wastes precious food resources. In particular, if it is not treated in time, the bean dregs will quickly rot and stink, becoming a major source of pollution. [0003] In fact, bean dregs is a rare source of dietary fiber for h...

AI Technical Summary

Problems solved by technology

[0008] The literature "IHP treatment to the modification research of okara dietary fiber" (Liu Chengmei, Xiong Huiwei, Liu Wei, Food Science, 2005 / 09) has reported the modification of okara dietary fiber (Dietary Fiber, DF) with regard to instantaneous high pressure (Instantaneous High Pressure, IHP). After the okara dietary fiber prepared by enzymatic method was processed by IHP based on Microfluidizer, the water holding capacity, expansion rate and binding water force all increased; the rheometer was used to measure the viscosity of the prepared DF solution under certain conditions. Measurement was carried out to study the time, speed and temperature sensitivity of the viscosity of the prepared DF solution; through microscope observation, it was found that the DF fiber bundles had no obvious truncation phenomenon, but the DF particle size was reduced after IHP treatment, the light transmittance increased, and the structure was more compact. loose