Carotenoid-derived aroma compounds in special sea salt products, towards scientific elements in order to associate the products with a region of production.
Résumé
Salt has always been consumed by human being and is essential for the health of our cells. Nowadays, salt is consumed more than is advised (between 5 to 10 times more than the recommended 2g/day), its overconsumption, can contribute to the deterioration of health. This is the reason why, in March 2001, a workgroup associating scientists, administrations, agencies, economic actors, and association of consumers was set up to decrease by 20% the population consumption of salt.
During the last years, measures have been taken by salt producers to diversify their commercial offer with standing products as well as guaranteed know-how products.
For example, European producers intend to obtain Protected Geographical Indication (PGI) or Traditional Speciality Guaranteed (TSG) status in order to protect and value coarse salt, ground (fine) salt and flower of salt, based on the quality policy for the product of EU agriculture. Thus, our research team, by investigating the carotenoid-derived aroma compounds (so called norisoprenoids) on salt pan environment or in sea salt products, tries to amend PGI or TSG. The aim of this study is indeed to discuss the possibility to use such aroma compounds, formed by the degradation of carotenoids biosynthesized by microalgae, as markers for sea salt. The present work describes more specifically the results of the headspace GC/MS analysis of sea water and salt flower collected in Saint-Armel (France).