Can I read Oleuropein/ligstroside isomers and their derivatives in Portuguese olive mill wastewaters on EtoBox?

Oleuropein/ligstroside isomers and their derivatives in Portuguese olive mill wastewaters by Susana M. Cardoso; Soraia I. Falcão; António M. Peres; Maria R.M. Domingues is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Oleuropein/ligstroside isomers and their derivatives in Portuguese olive mill wastewaters about?

Olive mill wastewaters (OMW) are a potential source of biophenols, but they have a complex composition with many unknown phenolics. The analysis of purified methanol extracts from two Portuguese OMW by electrospray mass spectrometry in the negative mode showed [MÀH] À ions at m/z 539 and m/z 523, corresponding respectively to oleuropein and ligstroside isomers which contain the glucose unit linked to its aromatic moiety. Also, the fragmentation pathway of the [MÀH] À ions at m/z 863, 685 and 847 indicated the presence of a diglucoside derivative of the oleuropein isomer and of mono-and diglucosides of the ligstroside isomer, respectively. Moreover, the two OMW samples contained an elenoic derivative of the ion at m/z 685 and a degradation product (m/z 453) of the [MÀH] À ion at m/z 523. Future studies focusing on the abundance of these compounds on OMW, as well as their bioactivities, will determine their possible industrial exploitation.

Who reads Oleuropein/ligstroside isomers and their derivatives in Portuguese olive mill wastewaters?

Author

Susana M. Cardoso; Soraia I. Falcão; António M. Peres; Maria R.M. Domingues

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0308-8146)

Published

2011

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)