Research Article

Effects of pH and Electrolytes on Castor Oil Emulsions with Various Stabilisers Using Khaya senegalensis Gum as an Emulsifier

Table 3

Microbial quality of purified gum.

Selective mediumResultsInference

Nutrient agarWhitish colonies observedTotal aerobic count (420 cfu/g)
Mannitol salt agarNo growth observedStaph. aureus absent
Bismuth sulphite agarNo black colonies observedSalmonella spp. absent
Cetrimide agarNo growth observedPseudomonas spp. absent
MacConkey agarNo growth observedEscherichia coli absent
Sabouraud agarCream colonies observedFungal count (<100 cfu/g)