Process for preparing nano-sized peanut protein powder

Abstract

The invention relates to a method for preparing nanometer peanut protein powder. It takes condensed peanut protein powder (defatted protein powder) as raw material, employs dynamic ultra-pressure homogenizing to replace traditional dry processing treatment, and prepares final product through spray drying. The invention is characterized in that: (1) it modifies condensed peanut protein powder (separated powder) by using physical modification to loose structure of peanut protein, which is favorable for subsequent process; the treating condition is temperate and the water retention and other function of condensed peanut protein can be maintained; (2) it removes unpleasant odor and makes it more acceptable; (3) the treatment of dynamic ultra-pressure homogenizing makes the granule be smaller than 200 nm, and the taste is much better; (4) the process is simple and easier for industrialization.

Description

technical field

[0001] The invention relates to a production method of nano-scale peanut protein powder. Background technique

[0002] There are many methods for ultrafine grinding of peanut protein powder, which are divided into dry ultrafine grinding and wet ultrafine grinding. Dry ultrafine pulverization equipment is divided into two categories: airflow ultrafine pulverizer and mechanical ultrafine pulverizer. 1. The principle of the airflow mill is to use the energy generated by the nozzle to crush the material into fine particles under the intense impact, collision, friction between particles, and the shearing action of the airflow on the material. This method makes the dried peanut powder denature the peanut protein due to the heat generated by impact and friction (the denaturation temperature is 55-65°C); High-speed operation makes the materials fed by the fan form a vortex in the crushing chamber. Through rapid stirring, the powder particles are forced to impact, r...