Method for preparing protein powder from mycelium protein liquid

Abstract

The invention discloses a method for preparing protein powder from mycelium protein liquid. The method comprises the following steps of (1) firstly, uniformly mixing mycelium protein liquid generatedin each workshop; (2) adding an inorganic flocculant or a low-molecule organic flocculant to the mycelium protein liquid; (3) heating the mycelium protein mixed liquid uniformly mixed in the step (2)to 50-100 DEG C; (4) adding a high molecular organic flocculant to the mixed liquid obtained in the step (3), the performing solid-liquid separation through solid-liquid separation equipment to obtainclear liquid and mycelium concentration dregs; and (5) mixing the protein dregs with corn steep liquid in a certain proportion, then performing drying and performing crushing to obtain the protein powder. The method for preparing the protein powder from mycelium protein liquid has the advantages of being low in energy consumption, high in recovery rate of mycelium protein and the like.

Description

technical field [0001] The invention relates to a method for preparing protein powder, in particular to a method for preparing protein powder by using mycelium protein liquid. Background technique [0002] Vitamin C is an indispensable substance for maintaining human health. It is a catalyst for the oxidation-reduction reaction of living cells, participates in various metabolisms in the body, and has the physiological effect of promoting various rapid synthesis in the body. The lack of vitamin C in the body is prone to scurvy, which can cause death in severe cases. It is widely used in medical fields such as prevention and treatment of scurvy, first aid of various diseases, prevention of coronary heart disease, treatment of Keshan disease, as well as food additives, cosmetics and feed additives. [0003] At present, vitamin C is mainly produced by a two-step fermentation method. The two-step fermentation production method will produce a large amount of mycelium, protein an...

AI Technical Summary

Problems solved by technology

[0003] At present, vitamin C is mainly produced by a two-step fermentation method. The two-step fermentation production method will produce a large amount of mycelium, protein and other by-products, accounting for about 4% of the fermentation broth. Sodium gluconate, which has an unpleasant smell, cannot be directly used as animal feed, and needs to be processed before it can be directly applied to feed or fertilizer

At present, the treatment of mycelium protein liquid mostly adopts adding acid to adjust the pH, and then heating precipitation or direct enzymatic hydrolysis to filter and dry to obtain protein powder, but this method has the following disadvantages: 1) It is necessary to adjust the pH value below 3.5, which is harmful to the equipment Serious corrosion; 2) The recovery rate of mycelium protein is low, resulting in a large waste of resources; 3) Spray drying technology is often used for drying. Due to the high temperature of spray drying, it not only causes partial protein decomposition, but also increases the energy of mycelium protein. Consumption, resulting in high cost of mycelium protein powder