Preservation of ergothioneine

摘要

Compositions comprising ergothioneine and a trimethylamine absorber are provided. Also provided are methods for preventing, reducing or minimizing the fishy, amine odor, due to trimethylamine, that is associated with the processing and/or storage of a preparation containing ergothioneine, by combining with the ergothioneine, during processing or prior to storage, a trimethylamine absorber in an amount sufficient to prevent the detection of any trimethylamine odor by the human nose. A method is further provided for ameliorating the methylamine odor associated with an aqueous ergothioneine-containing preparation after it has developed a fishy trimethylamine odor.

主权项

1. A method for sequestering trimethylamine released from ergothioneine in a topical, aqueous-containing cosmetic or pharmaceutical composition stored at room temperature prior to application of the composition to skin, said composition having a neutral to acidic pH and comprising greater than 20 μM (w/v) ergothioneine, said method comprising adding to said composition a trimethylamine absorber comprising a weak organic acid in an amount sufficient to bind the trimethylamine so as to prevent development of a fishy odor when the composition is applied to the skin, wherein the trimethylamine absorber is added to the composition before, during or after the storage.