公开(公告)号：US20210122995A1

公开(公告)日：2021-04-29

申请号：US16635680

申请日：2017-08-01

Applicant: SYMRISE AG

Inventor： Vijayanand Chandrasekaran ,  Stefan Brennecke ,  Uwe Schaar ,  Edison Diaz Gomez ,  Claudia Utermöhle ,  Pierre Kurzenne

IPC: C11B9/02 ,  B01D61/02 ,  B01D69/12 ,  B01D71/70 ,  B01D69/02 ,  B01D69/10 ,  A23L27/12 ,  A23L5/40 ,  A61K8/92 ,  A61Q13/00 ,  A61Q19/10

Abstract: The present invention relates to a new high-throughput process for reducing impurities in essential oils and extracts (in particular for fragrances, fragrance ingredients, flavours and cosmetic ingredients) under mild conditions. Undesirable natural components such as waxes, but also synthetic materials such as agrochemicals and other environmental pollutants are reduced by using at least one selective nanofiltration membrane. In addition, the present invention relates to a method for reducing coloured components in essential oils to obtain a less coloured or even colourless essential oil, while achieving high re-colouration stability over time. Further, the odour quality is maintained or increased through reduction of undesirable olfactory substances to achieve a purified and higher quality oil.