Food sterilization method

A technology for food and sterilization pot, applied in food preservation, food science, application and other directions, can solve the problems of irregular food, fat floating, shortened food shelf life, etc., and achieve good sterilization effect.

Inactive Publication Date: 2009-06-17
张志峰
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the sterilization of food generally uses atmospheric pressure sterilization, pasteurization, UHF sterilization or aseptic packaging methods, but these sterilization methods are easy to waste water and steam resources, and low temperature can only kill general bacteria. High-temperature bacteria cannot be killed, and plastic packaging is easy to deform,

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] The food sterilization method that the present invention proposes comprises the following steps:

[0009] (1) Push the food into the sterilizer, close the sterilizer tightly, open the exhaust valve and steam valve, keep it under normal pressure for 15-20 minutes, and heat the food to 80-95°C;

[0010] (2) Close all exhaust valves, raise the temperature in the retort to 115°C-125°C within 15-30 minutes, and keep warm for 20-35 minutes;

[0011] (3) Open the air compressor valve and raise the sterilizing pressure cooker to 0.15Mpa-0.2Mpa within 3-7 minutes;

[0012] (4) Open the cold water valve to cause the temperature in the pot to drop suddenly. After the cold water is immersed in the product, the temperature in the pot is below 50°C, and the air compressor valve is closed;

[0013] (5) Open the exhaust valve and drain valve, and pull out the food after the water is drained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a food sterilizing method comprising the following steps: keeping the food under normal pressure for 15-20 minutes; heating the food to 80-95 degrees centigrade; closing all exhaust valves; heating the sterilization kettle to the temperature of 115-125 degrees centigrade in 15-30 minutes, and preserving the heat for 20-35 minutes; raising the pressure in the sterilization pressure kettle to 0.15MPa-0.2MPa in 3-7 minutes; then opening the cold water valve to make the temperature in the kettle to decrease suddenly, and closing the air compressor valve when the temperature in the kettle is under 50 degrees centigrade; finally, taking out the product. The method can kill the bacteria thoroughly, and causes no secondary pollution.

Description

technical field [0001] The invention relates to a food sterilization method. Background technique [0002] At present, the sterilization of food generally uses atmospheric pressure sterilization, pasteurization, UHF sterilization or aseptic packaging methods, but these sterilization methods are easy to waste water and steam resources, and low temperature can only kill general bacteria. High-temperature bacteria cannot be killed, and plastic packaging is easy to deform, resulting in irregular food, shortening the shelf life of food, easy to deteriorate, rancidity, flatulence and deterioration, fat floating, protein aggregation, flocculation, coagulation, etc. What's more serious is that when the vegetable protein plastic packaging is above 100°C, air bubbles will appear during product sterilization, which is prone to secondary pollution. Contents of the invention [0003] The content of the present invention is to provide a sterilizing method that saves energy, has no poll...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A23L3/00A23L3/015
Inventor 张志峰
Owner 张志峰
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap