Search results
Results from the WOW.Com Content Network
Pasteurized milk in Japan A 1912 Chicago Department of Health poster explains household pasteurization to mothers.. In food processing, pasteurization (also pasteurisation) is a process of food preservation in which packaged foods (e.g., milk and fruit juices) are treated with mild heat, usually to less than 100 °C (212 °F), to eliminate pathogens and extend shelf life.
A Tetra Pak ultra-pasteurization line. Ultra-high temperature processing (UHT), ultra-heat treatment, or ultra-pasteurization [1] is a food processing technology that sterilizes liquid food by heating it above 140 °C (284 °F) – the temperature required to kill bacterial endospores – for two to five seconds. [2]
Flash pasteurization, also called "high-temperature short-time" (HTST) processing, is a method of heat pasteurization of perishable beverages like fruit and vegetable juices, beer, wine, and some dairy products such as milk. Compared with other pasteurization processes, it maintains color and flavor better, but some cheeses were found to have ...
Pulsed electric field (PEF) electroporation is a method for processing cells by means of brief pulses of a strong electric field. PEF holds potential as a type of low-temperature alternative pasteurization process for sterilizing food products. In PEF processing, a substance is placed between two electrodes, then the pulsed electric field is ...
In this type of pasteurization the cream is heated to the high temperature of 85 °C for thirty minutes. This processing step creates a sterile medium in which the starter bacteria can thrive. [9] After pasteurization, the mixture is cooled down to a temperature of 20˚C, an ideal temperature for mesophilic inoculation.
Related: 11 Freezer Storage Mistakes That Are Ruining Your Frozen Food. The Safe Zone. The correct temperature for your freezer is 0 degrees Fahrenheit—if you set it to 0 degrees (-18 degrees ...
Equipment used in aseptic processing of food and beverages must be sterilized before processing and remain sterile during processing. [1] When designing aseptic processing equipment there are six basic requirements to consider: the equipment must have the capability of being cleaned thoroughly, it must be able to be sterilized with steam, chemicals, or high-temperature water, sterilization ...
A. acidocaldarius is the most thermotolerant, as is able to grow in temperatures up to 70 °C. [9] A. disulfidooxidans is the only psychrotroph, being able to grow at 4 °C. [11] [12] Most species can grow in the pH 2.0-6.0 range, and none have been shown to grow above pH 6.5. [9] A. disulfidooxidans is the most acid-tolerant, and can grow at ...