Below is the list of microbial spoilage of meat, poultry, fish, egg, honey, confectionery, bakery. This list will help you in ASRB NET 2019 exam as at least 2 questions are asked every time related to spoilage of milk, meat, poultry, fish, egg, bakery, confectionery. The milk and milk product spoilage and spoilage microorganisms will be uploaded in the second post as soon as possible.
Food
|
Spoilage/contamination type
|
microorganism
|
1.Bread
|
Bread
Mold
|
Rhizopus stolonifer
|
Moldy
|
Rhizopus, Penicillium species
|
|
Pinky
or reddish
|
Monilla sitophilla
|
|
Chalky
Bread
|
Endomycopsis fibuligera, Trichosporon
variable
|
|
Ropiness
|
Bacillus licheniformis
Bacillus Subtillis
|
|
Bloody
bread or red bread
|
Serratia marcescens
|
|
Red
Crumb
|
Geotrichum aurantiacum
|
|
2.
sugar products & syrups
candy
|
Ropy
|
Enterobacter aerogenes
|
Yeasty
|
Saccharomyces
Zygosaccharomyces
|
|
Honey
Spoilage
|
Zygosaccharomyces richteri
|
|
Pink
|
Micrococcus roseus
|
|
Moldy
|
Aspergillus, Penicillium
|
|
Salmonoellosis
|
salmonella
|
|
3.
Fruits & Vegetables
|
Bacterial
Soft rot
|
Rhizopus, Erwinia cartovora
|
Grey
mold rot
|
Botrytis
|
|
Rhizopus
soft rot
|
Rhizopus nigricans
|
|
Black
mold rot
|
Aspergillus niger
|
|
Watery
Soft rot
|
Sclerotinia sclerotiorum
|
|
Pink
Mold rot
|
Trichothecium roseum
|
|
Souring
|
Saprophytic bacteria
|
|
Blue
mold rot
|
Penicillium digitatum
|
|
Black
rot
|
Alternaria, Physalospora
|
|
Green
mold rot
|
Cladosporium
|
|
Anthracnose
|
Colletotrichum linedemuthianum
|
|
4.Pickles,
Saurekraut
|
Film
Yeasts & Pink Yeasts
|
Rhodotorula
|
Black
pickle
|
Bacillus nigricans
|
|
Undesirable
Odour in saurekraut
|
Padeococcus cerevisae
|
|
Pickle
Softening
|
Penicillium
|
|
Pectolysis
|
Aeromonas
|
|
Slimy
Kraut
|
Lactobacillus cucumeris
|
|
Bloats
|
Lactobacillus plantarum
|
|
5.
Meats
|
Red
Spot
|
Serratia marcescens
|
Blue
color
|
Pseudomonas syncyanea
|
|
Earthy
flavor
|
Actinomycetes
|
|
Souring
|
Pseudomonas, Micrococcus, Bacillus
|
|
Moldy
|
Aspergillus, Rhizopus, Penicillium
|
|
Putrefaction
and canned meat spoilage
|
Clostridium
|
|
Green
patches
|
Penicillium expansum
|
|
Whiskers
|
Thamnidium
|
|
Slimy
|
Leuconostoc
|
|
6.
Fish
|
Discoloration
|
Pseudomonas
|
Smoked
fish spoilage
|
Molds
|
|
Pink
discoloration of salted fish
|
Helicobacterium,
Helicococcus, Pseudomonas salineria
|
|
Dun
spoilage
|
Wallemia sebi
|
|
7.
Egg
|
Green
rot
|
Pseudomonas
fluorescens
|
Fungal
red rot
|
Sporotrichum
|
|
Black
rot(opaque egg)
|
Proteus
|
|
Red
rot
|
Serratia marcescens
|
|
Colorless
rot
|
Pseudomonas,
Alcaligenes
|
|
8.
Poultry
|
Slime,
Odour
|
Pseudomomas,
Alcaligenes
|
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Below are the books I recommend them to study food microbiology
If you know something share it on comments.
Below are the books I recommend them to study food microbiology
nice start...keep going
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