Pgs. 8-11 Flashcards
1
Q
-Strict Aerobe
-Psychrotrophic
-spoil refrigerated fresh meats
-calcoaceticus
A
Acinetobacter
2
Q
- coccobacilli
- Psychotropic and no growth at 35 C (5 to 20 optimal)
- spoil fish, red meats and poultry products
A
Psychrobacter
3
Q
- coccobacilli
- Mesophilic (optimum 37 C)
- animal disease causing (cows, sheep, pigs)
- also human pathogens
- brucellosis
A
Brucella
4
Q
- flagellum
- mesophilic
- Found in intestinal tract of humans, animals, birds
- unpasteurized milk and undercooked poultry meat
A
Campylobacter
5
Q
- Rods
- Mesophilic
- Intestinal track of humans, animals, birds
- coliform (indicator organism)
- ferundii
A
Citrobacter
6
Q
- Mesophilic
- Found in intestinal track of humans, warm blooded animals, birds, environment
- many strains are non pathogenic
- some are pathogenic to man and animals
- coliform; indicator organism
- Escherichia Coli
A
- Escherichia
7
Q
- Mesophilic
- found in intestinal track of humans, animals and birds
- coliform
- enterobacter aerogenes
A
enterobacter
8
Q
- capsulated rods
- Mesophilic
- intestinal track of humans, animals, birds, soil water and grains
-klebsiella pneumoniae
A
Klebsiella
9
Q
- Mesophilic
- intestinal tract of humans, animals, birds and the environment
- cause spoilage if refrigerated meats and vegetable products
- Hafnia alvei
A
Hafnia
10
Q
- 2000 serovars; human pathogens
- found in intestinal track if humans, animals, birds, and insects
- major cause of foodborne disease
- S. enteritidis, S. typhimurium
A
Salmonella
11
Q
- 2000 serovars; human pathogens
- found in intestinal track if humans, animals, birds, and insects
- major cause of foodborne disease
- S. enteritidis, S. typhimurium
A
Salmonella
12
Q
- Mesophilic
- in intestinal track of humans and primates
- associated with foodborne disease
- shigella dysenteriae
A
Shigella
13
Q
- Mesophilic, some are psychrotropic
- found in intestinal track of humans and animals, and in the environment
- many involved in food spoilage
- proteus vulgaris
A
Proteus
14
Q
- psychrotropic (can grow at 1 C)
- found in intestinal track of animals
- associated with foodborne disease
- Yersinia enterocolitica
A
Yersinia
15
Q
- form pink or red colonies on agar media
- occur in the environment
- some can grow at refrigerator temperatures
- food spoilage organism
- Serratia liquefaciens; Serratia marcesens
A
Serratia
16
Q
- Mesophilic
- some species need NaCl for growth
- some species are human pathogens
- V. cholerae, V. parahemolyticus, V. vulnificus
- some cause food spoilage - V. alginolyticus
A
Vibrio
17
Q
- pyschrotrophic
- found in intestinal tract of fish
- some are fish pathogens
- foodborne pathogens
- Aeromonas hydrophilia
A
Aeromonas
18
Q
- Mesophilic
- found in surface water, soil, fresh water fish and aquatic animals
- more prevalent during warmer seasons
- foodborne pathogen
- Plesiomonas shigelloides
A
Plesiomonas
19
Q
- small gram-negative bacteria
- parasites; multiply only in living cells
- transmitted by lice, fleas, ticks & mites
A
Rickettsias
20
Q
- small gram-negative rods
- Mesophilic (optimum 32-35 C)
- more heat resistant than many pathogenic bacteria
- destroyed by pasteurized (62.8 C, 30 min)
- coxiella burnetti (infection in cattle)
A
Coxiella
21
Q
GRAM-POSITIVE COCCI
- aerobic
- Mesophilic
- found in skin of mammals
- some produce yellow colonies
- can cause food spoilage
- micrococcus luteus
A
Micrococcus
22
Q
- usually in clusters (grape-like)
- facultative anaerobes
- can grow in 10% NaCl
- found on skin of humans, animals and birds
- S. aureus frequently involved
- S. carnosus - used to produce fermented sausages
A
Staphylococcus
23
Q
- spherical
- facultative anaerobes
- some are present as commensals in human respiratory tract
- streptococcus pyogenes
- streptococcus thermophilus
Produces lactic acid
Dairy fermentation
Can grow at 50 C
A
Streptococcus
24
Q
- facultative anaerobes
- Mesophilic
- found in intestinal track
- indicator organism
- can cause food spoilage
- enterococcus faecalis
A
Enterococcus
