Fig. 4. The effects of polyenoic species of triacylglycerol (TAG; e.g. T20:4 indicates the addition of triarachidonyl TAG) on rates of oleate release from triolein by hormone-sensitive lipase (HSL). Results are presented as means ± S.E.M. (N=4) for the ratio of the rate of oleate released in the presence of the substrate indicated on the abscissa compared with the rate measured with triolein. *P<0.04, indicating significant differences compared with the addition of triolein.