Low sclareol by-product of clary sage concrete : 

chemical analysis of a waste product of the perfume industry

Rémi Laville, Cécilia Castel, Karine Fattarsi,  Celine Roy, Laurent Legendre, Claire Delbecque, Pierre-Philippe Garry, Arthur Audran, Xavier Fernandez

Flavour and Fragrance Journal, Volume 28, Issue 2, pages 93–101, March 2013

Keywords: by-product valorization; Salvia sclarea; concrete; TAG; UPLC-QToF


ABSTRACT

In line with the sustainable development objectives of the Claryssime® research programme, a by-product of Salvia sclarea concrete (low sclareol by-product) obtained from industrial sclareol purification, was subjected to full chemical fractionation, characterization and assessment of its economic potential as a by-product synergy candidate. Fractionation and intensive semi-preparative high-performance liquid chromatography isolation led to the characterization of several compounds that belong to different metabolite families, including flavonoids [salvigenin (3), 1.8%], diterpenoids [sclareol (6), 4.6%] and triterpenoids [oleanolic acid (10), 6.2%], and triacylglycerols (60.8%). The triacylglycerol fraction was further studied: its total fatty acid content was analysed by gas chromatography–mass spectrometry and all the triacylglycerols were described by ultra-performance liquid chromatography–quadrupole time of flight mass spectrometry (UPLC-QToF) analysis. The reproducibility of the low sclareol by-product chemical composition was assessed and validated by quantitative high-performance liquid chromatography–evaporative light scattering detector analysis and its evolution during the process was investigated via the analysis of a rich sclareol by-product. Such an analytical approach, from the improved fractionation to the triacylglycerol analysis via UPLC-QToF, can be applied to many industrial concretes or other by-products from natural ingredient extraction. Copyright © 2012 John Wiley & Sons, Ltd.


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