Type of Meat

Morphological Description of Colonies

Microscopic Appearance

Suspected Organism

Muscles

White cottony at first then grey as it grow older

Sporangiophores arise singly from mycelium at any point. All branches terminate in sporangia

Mucor

Black dusty and spongy throughout the storage time

Sporangiophores arises from long arching stolons opposite rhizoids

Rhizopus stolonifer

Dark-brown to black pigmentation

Numerous mycelia conidiophores are black, spherical to oval, produced in long chain

Aspergillus niger

Colony appeared to be circular, white and creamy

Single cells, oval in shape with some cells showing budding

Saccharomycetes

Pinkish surface with white underneath

Conidiophores bear branched sterigmata, each with chain of conidiophores

Peniciliumspp

Yellow green surface with reddish brown underneath

The apex of the conidiophores is swollen into a vesicle from which arises bottle shaped cells, sterigmata which bear chains of secondary sterigma

Aspergillus flavus

Offal

Darkish-brown to black pigmentation

Numerous mycelia conidiophores are black, spherical to oval, produced in long chain

Aspergillus niger

Yellowish green surface with reddish brown underneath

The apex of the conidiophores is swollen into a vesicle from which arises bottle shaped cells, sterigmata which bear chains of secondary sterigma

Aspergillus flavus

White cottony at first then grey as it grow older

Sporangiophores arise singly from mycelium at any point. All branches terminate in sporangia

Mucor

Black dusty and spongy throughout the storage time

Sporangiophores arises from long arching stolons opposite rhizoids

Rhizopus stolonifer

Colony appeared to be circular, white and creamy

Single cells oval in shape with some cells showing budding

Saccharomycetes

Pinkish surface with white underneath

Conidiophores bear branched sterigmata, each with chain of conidiophores

Penicilium spp