Laetiporus sulphureus is a species of bracket fungus found mainly in Europe and
North America. Its common names are sulphur polypore, sulphur shelf, and chicken
of the woods because of its taste which may also resemble the taste of crab or lobster.
Its fruit bodies grow as golden-yellow shelf-like structures on tree trunks and
branches. Like other bracket fungi, they may last many years and fade to pale grey or
brown. The under surface of the fruit body is made up of tubelike pores. Laetiporus
sulphureus is a saprophyte and causes brown cubical rot in the heartwood of trees on
which it grows. Unlike many bracket fungi, it is edible when young.
In this study, the lipid profile of the fruiting bodies of L. sulphureus has been studied
using GC-FID and Iatroscan TLC FID methodologies. Different types of extractions
including high energy techniques were employed to identify the optimum conditions
for higher yield of lipid isolation. Optimum extraction methodologies provided two
fractions, one containing neutral and polar lipids (TGs, sterols, GL, phospholipids)
and the other mainly attributed to fungal carotenoids and pigments. The existence of
relatively high amount of sterols may be correlated to fungus pharmaceutical
properties. Fatty acid analysis indicated a predominant level of polyunsaturated fatty
acids (PUFA) followed by saturated fatty acids (SFA) and monounsaturated fatty
acids (MUFA).