A collection of 14 IR and NMR spectra of essential oil extracted from the
palm Serenoa repens or Saw Palmetto, which is commonly used to treat
BPH in men. The 14 spectra are of different retail samples, and are divided
into two categories based upon the label description: adSrE, adulterated
extract, and pSrE, pure extract. The adulterated samples typically have
olive oil added to them, which is inactive towards BPH. There are two
additional spectra included as references/outliers: evening primrose oil,
labeled EPO in the data set, and olive oil, labeled OO. These latter two
oils are mixtures of triglycerides for the most part, while the SrE samples
are largely fatty acids. As a result, the spectra of these two groups are
subtly different.