**2.4** *Mucor hiemalis*

The influence on lipase induction in *Mucor hiemalis* of different types of triacylglycerols containing mainly oleic acid (olive oil), erucic acid (mustard oil), or saturated fatty acids of 8 to 16 carbons (coconut oil) was studied (Akhtar et al., 1980). The fungus produced a significant amount of lipase in the presence of glucose, but the lipase activity increased markedly when olive oil was added to the medium at the beginning of the fermentation. Among the various sources of triacylglycerols used as the carbon source, olive oil was found to be most effective in inducing the lipase. The lipase of *M. hiemalis* can be considered to be both constitutive and inducible.
