Colony appeared to be round, white and creamy

Single cells oval in shape with some cells showing budding


Darkish-brown colour to black pigmentation

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

Aspergillus niger

Black dusty and spongy throughout the storage time

Sporangiophores arise from long arching stolons opposite rhizoids

Rhizopus stolonifer

Pink colour surface with white underneath

Conidiophores bear branched sterigmata, each with chain of conidiophores

Penicilium spp

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

Whitish cottony at first then grey as it grow older

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