What are some examples of Psychrotrophs?
Among the psychrotrophic bacteria include Aeromonas, Acinetobacter, Alcaligenes, Psychrobacter, Brochothrix, Enterobacter, Microbacterium, Moraxella, Carnobacterium, Shewanella, Campylobacter, Yersinia, Pseudomonas, Serratia, Achromobacter, Streptococcus, Leuconostoc, Pediococcus, Lactobacillus, Lactococcus.
Where are psychrophiles found?
1. Psychrophiles are cold-loving bacteria. Their optimum growth temperature is between − 5°C and 15°C. They are usually found in the Arctic and Antarctic regions and in streams fed by glaciers.
How do you grow psychrophilic bacteria?
Psychrophilic bacteria grow at a relatively rapid rate at or below 45° F. (7.2° C.) and are capable of forming visible colonies on plates incubated for ten days at 7 ± 0.5 C.
Where do Psychrotrophs grow best?
Food Spoilage, Preservation and Quality Control Psychrotrophs are organisms can grow below 10 °C and down to about −1 °C, but usually prefer to grow at about 21 °C. These organisms are responsible for spoilage of refrigerated foods such as cold stored meat, fish, poultry, and vegetables.
What temperature do psychrophiles grow best?
True psychrophiles: They are sensitive to temperatures over 20°C. Optimum growth occurs at 15°C or below. Found in very cold environments such as ocean depths, Arctic, and the Antarctic regions. They seldom cause disease or food spoilage.
What does psychrophil mean?
psy·chro·phile , psychrophil(sī’krō-fīl, -fil) An organism that grows best at a low temperature (0-32°C; 32-86°F), with optimal growth occurring at 15-20°C (59-68°F).
Is Ny-Alesund soil a psychrotolerant soil?
Most of the soil fungi of Ny-Alesund were capable of growing between 4 [degrees] and 30 [degrees]C, indicating that psychrotolerant fungi are predominant in the area. A gram-negative, psychrotolerant coccobacillus is present in hemolymph of Cancer magister.
What family does Psychrobacter belong to?
Rudi Rossau found through DNA-rRNA hybridization analysis that Psychrobacter belongs to the Moraxellaceae. The first species ( Psychrobacter immobilis) was described by Juni and Heym. Psychrobacter occur in wide range of moist, cold saline habitats, but they also occur in warm and slightly saline habitats.