1 hour = 2^3 = 8
2 hours = 2^6 = 64
24 hours = 2^72 =4,722,366,482,869,650,000,000
Most of the bacteria in the refrigerator will have slow growth or stop grow but it will not kill most bacteria. Spoilage bacteria thrive in refrigerator temperatures so the food will still get spoiled and some bacteria even thrive in the freezer.
Changes in color and smell.
Microorganisms can contaminate the food we consume. There are two categories of microbes one is beneficial or neutral for human health and the other is a disease causing pathogen. When a disease causing microbe come in contact with the food, it may start growing on them for a while can be taken inside of body while we eat or drink the contaminated food. They can cause serious infection or food poisoning based on the type of pathogen that is contaminated. Clostridium botulinum is a pathogen which causes food poisoning by its toxin.
Yeasts, molds and bacteria are microbes that spoil food. See Related Links for lists.
Most fruits are acidic and tend not to support the growth of pathogenic bacteria. Molds and yeasts like acidic environments.
Food spoilage is caused by bacteria multiplying. Bacteria thrive in room temperature, so refrigerators keep food at a temperature that bacteria do not like, which slows their ability to reproduce.
refrigiratorprevent food spoilage
An organism of microscopic or submicroscopic size, especially a bacterium or protozoan.
Yes
To prevent food poisoning.
Spoilage can be from bacteria, but it can also be caused by yeasts and molds - which are not bacteria.
the most common cause is usually food born bacteria that cause food spoilage or some bacterial endospores (= inactive forms of bacteria ) that germinate in the human intestine and cause disease
Food spoils the fastest between the temperatures of 40oF and 140oF, therefore foods in preparation should not be kept at these temperatures. A refrigerator is below 40oF. bacteria causing food spoilage like to grow about body temperature. As it gets cooler they slow down in reproduction. Freezing stops their growth. Mold also slows at lower temp. A refrigerator slows decay process because it slows the growth rate of spoilage organisms.
i know that 1 way is pasteurisation
The purpose of pasteurization is to prevent spoilage by killing all microorganisms, especially bacteria.
Refrigeration will slow down the growth of bacteria in the milk, but not kill the bacteria. This will slow down spoilage.
The main way that pasteurization methods prevent food spoilage is by removing the bacteria from the food. This is done by heating the food until it is hot enough to kill the bacteria and then holding it there long enough to make sure that all bacteria are killed.