Method for producing flour yeast by using corn flour as raw material

Abstract

The invention relates to a method for producing flour yeast by using corn flour as a raw material. The method adopts the corn flour to prepare liquid glucose by a double enzymolysis method to culture the yeast, carries out feeding culture of the yeast through controlling pH value, fermentation temperature, inoculation quantity, fermentation time, oxygen dissolving amount and other parameters, and prepares a yeast product applicable to flour fermentation through adding yeast protecting agent, granulating, drying and other processes. The culture medium is rich in carbon source, nitrogen source, inorganic salt, trace elements, vitamin and other growth factors; the method can ensure completeness of nutrient components of the flour yeast; the finally obtained yeast has higher fermentation capability, and can be used for fermentation of flour; the filtered side product corn pulp can be used as feed; new technology of wastewater circulating utilization is adopted, so that the process production realizes non discharge of wastewater or dreg, does not pollute environment. The method is applicable to large-scale industrial production.

Description

technical field [0001] The invention relates to a method for producing pasta yeast using corn flour as a raw material. Corn flour is used to prepare sugar solution for culturing yeast by a double-enzyme method. Fed-batch culture of yeast, and then through the process of adding yeast protective agent, granulation, drying and other processes, to make yeast products suitable for pasta fermentation. Background technique [0002] As far as the current production process of baker's yeast is concerned, the raw materials are mostly sugarcane molasses and beet molasses. Although the output is relatively large, most of them are seasonal and regional production, which limits the development of the yeast industry; and in the application of molasses, there are serious problems. The problem of waste liquid treatment, a large amount of waste liquid treatment has affected the production cost of yeast, and the waste water discharge has also seriously polluted the environment. Corn provides ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of regionality of molasses raw material and difficult wastewater treatment in the prior art, and to provide a kind of cornmeal production of pasta that can ensure the integrity of the nutritional components of pasta yeast and the yeast obtained finally has relatively high fermentative power Yeast method, used for the fermentation of pasta, the filtered by-product corn dregs can be used as feed, so that there is no waste water, no waste residue discharge in the process production, and no pollution to the environment