Method for producing clean sterilized fresh eggs

Abstract

The invention relates to a method for producing clean sterilized fresh eggs. The method comprises the following steps: (1) rejecting dirty eggs, cracked eggs, sunken eggs, soft eggs and abnormal eggs, and isolating the clean eggs suitable for being stored for a long time; (2) hot air de-dusting and sterilizing: blowing the surfaces of the egg shells from up and down as well as left and right directions with the hot air at 120-160 DEG C, keeping the air speed being 2.5m / s-10m / s, and blowing each egg for 3-30 seconds; and (3) cooling and packaging: blowing the egg shells with the air at natural temperature, cooling the egg shells till the temperature of the egg shells is room temperature, and packaging, thereby acquiring the clean sterilized fresh eggs. The clean sterilized fresh eggs prepared by using the method provided by the invention have the advantages that the water and energy are saved, the chemicals such as detergent, disinfectant, coating anti-staling agent, and the like, are unnecessary, the matters inside the eggs are pollution-free, and the method is environment-friendly and safe.

Description

technical field [0001] The invention belongs to the field of food processing, and in particular relates to a method for producing clean and sterilized fresh eggs. Background technique [0002] At present, there are two major parts of fresh eggs sold in the market, one part is unprocessed fresh eggs, and the other part is processed "cleaning eggs", also known as "clean eggs". [0003] Unprocessed fresh eggs are polluted by dirty eggs and damaged eggs. The surface of some eggs not only has feces, blood stains, feed, hay, protein, mildew and other visible dirt, but also has pathogenic bacteria such as E. coli and Salmonella. Bacterial contamination, the safety of fresh eggs is not high. For example, in August 2010, the Salmonella contamination incident occurred in the United States, thousands of people were infected by Salmonella, and as many as 500 million eggs were recovered. [0004] "Cleaning eggs" are processed fresh eggs, which refer to fresh poultry eggs that have been...

AI Technical Summary

Problems solved by technology

Although this processing method cleans the surface of the eggshell, kills pathogenic bacteria and microorganisms, and coats the surface of the eggshell, there are many shortcomings in this processing method, which mainly include the following: (1) waste water (the cleaning process requires a lot of water); (2) not environmentally friendly (detergents, disinfectants enter the groundwater); (3) not low-carbon (drying, processing equipment requires energy); (4) higher production costs ( Including transportation, cleaning, film coating, drying, labor costs, equipment, management costs, etc.); (5) There are safety risks (because cleaning agents, disinfectants, film preservatives and inks for spraying codes can pass through the eggshell The pores penetrate into the egg, so the cleaning egg adds a new safety problem); (6) Due to the high market price and long sales period, the "cleaning egg" is no longer fresh when consumed

According to the above six points, it can be explained that while the processing and production of "cleaning eggs" achieves "clean" eggshells, it brings more waste of water resources, pollution of chemical substances and excessive consumption of energy.

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