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Food Borne Fungi : Food Borne Molds (Gibberella (Conidia: (Canoe shape,…
Food Borne Fungi : Food Borne Molds
Sclerotinia
Plant pathogenic fungus.
Cause a disease called white mold.
Characteristic:
Ability to produce black resting structures (sclerotia).
Caused
'gray mould'
condition on plant foods.
White fuzzy growths of mycelium.
Have dividers between the cells.
Produce:
Long
Pigmented conidiophore.
Conidia:
:warning: borne on apical cells, gray, one celled.
Gibberella
Had abnormally long stems.
Produce:
extensive mycelium
Conidia:
Canoe shape
Borne singly/in chains.
Important:
Spoilage of vegetables & fruits.
e.g. corn
Cephalothecium
Characteristic:
Can grow in a variety of habitats ranging from leaf litter to fruit crops.
Infect and spoil a variety of fruit crops.
Flat and granular colonies.
Initially white and develop to be light pink in color.
Produce:
Mycelium
Simple conidiophores. Bear long Slender
Conidia:
Sometimes in a group chain.Singly Apically
Monilia
Produce:
White/grey mycelia that bear branched conidiophores
Conidia:
pin or tan in mass
Cause brown rot of fruits, “red bread moulds”
Mucor
Spore:
Smooth, regular, and borne with sporangium
Found:
Large number of foods such as decaying fruits & vegetables.
Produce
:
Non septate mycelium that give rise to coniodiophores that bear columella and sporangium at apex
Penicillium
Widespread in soil, air, dust.
Founds:
bread, cakes, fruits and preserves
Produce:
septate mycelia that bear conidiophores arising sigularlyor sometimes in synnemata with branches near the apex to form a brush like, conidia-bearing apparatus
Important:
Cheese making, production of antibiotics (penicillin)
Aspergillus
Founds:
cakes, fruits and vegetables
Appear yellow to green to black on numbers of foods.
Conidia:
one celled, globose, and variously coloredin mass.
Produce:
Upright conidiophores that are simple and terminate in a globoseand clavately swelling.
septatemycelia, some aflatoxins, ochratoxins
