AROMATISING AGENTS WITH LOW SULPHUR CONTENT AND USE THEREOF IN ORAL CARE COMPOSITIONS Russian patent published in 2011 - IPC A61K8/97 A61Q11/00 

FIELD: chemistry.

SUBSTANCE: invention relates to aromatising agents, including mint, fruit or spicy aromatising agents, which are specifically made for virtually complete removal low-molecular sulphur compounds, particularly dimethylsulphoxide (DMSO) which is defined as the main precursor of compounds with a foul smell, such as dimethyl sulphide or methyl mercaptan. The synthesis method involves washing with water, as well as non-selective removal of undesirable components and exposing the aromatising agents to extreme conditions which can decompose other components and lead to undesirable change in taste or flavour. Other processing methods with the aim of selective removal of undesirable components involve distillation in order to remove polar low-boiling components, filtration through adsorbents which are selective towards sulphur components, countercurrent extraction and column chromatography.

EFFECT: produced aromatising agents are especially useful in oral care compositions which contain components with chemical reducing capability, such as tin ions, which react with sulphur-containing compounds to form foul smelling products.

12 cl, 3 tbl