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8 relations: D-value (microbiology), Food microbiology, Organism, Pasteurization, Pre-exponential factor, Sterilization (microbiology), Temperature, Thermal death time.
D-value (microbiology)
In microbiology, D-value refers to decimal reduction time (or decimal reduction dose) and is the time (or dose) required at a given condition (e.g. temperature), or set of conditions, to kill 90% (or 1 log) of the exposed microorganisms.
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Food microbiology
Food microbiology is the study of the microorganisms that inhabit, create, or contaminate food, including the study of microorganisms causing food spoilage, pathogens that may cause disease especially if food is improperly cooked or stored, those used to produce fermented foods such as cheese, yogurt, bread, beer, and wine, and those with other useful roles such as producing probiotics.
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Organism
In biology, an organism (from Greek: ὀργανισμός, organismos) is any individual entity that exhibits the properties of life.
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Pasteurization
Pasteurization or pasteurisation is a process in which packaged and non-packaged foods (such as milk and fruit juice) are treated with mild heat (Today, pasteurization is used widely in the dairy industry and other food processing industries to achieve food preservation and food safety. This process was named after the French scientist Louis Pasteur, whose research in the 1880s demonstrated that thermal processing would inactivate unwanted microorganisms in wine. Spoilage enzymes are also inactivated during pasteurization. Most liquid products are heat treated in a continuous system where heat can be applied using plate heat exchanger and/or direct or indirect use of steam and hot water. Due to the mild heat there are minor changes to the nutritional quality of foods as well as the sensory characteristics. Pascalization or high pressure processing (HPP) and Pulsed Electric Field (PEF) are non-thermal processes that are also used to pasteurize foods.
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Pre-exponential factor
In chemical kinetics, the pre-exponential factor or A factor is the pre-exponential constant in the Arrhenius equation, an empirical relationship between temperature and rate coefficient.
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Sterilization (microbiology)
Sterilization (or sterilisation) refers to any process that eliminates, removes, kills, or deactivates all forms of life and other biological agents (such as fungi, bacteria, viruses, spore forms, prions, unicellular eukaryotic organisms such as Plasmodium, etc.) present in a specified region, such as a surface, a volume of fluid, medication, or in a compound such as biological culture media.
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Temperature
Temperature is a physical quantity expressing hot and cold.
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Thermal death time
Thermal death time is how long it takes to kill a specific bacteria at a specific temperature.
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