Non-volatile floral oils of Diascia spp. (Scrophulariaceae)

The non-volatile floral oils of Diascia spp. (Scrophulariaceae) were selectively collected from the trichome elaiophores located within the tips of the paired spurs. Chemical investigations with different mass spectrometric methods (GC/EI-MS and ESI-FTICR-MS) of Diascia floral oils disclosed unique, partially acetylated acylglycerols of (3R)-acetoxy fatty acids (C14, C16 and C18). The mass spectral behaviour of significant compounds is discussed.