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US 4,311,860 AGranted
Microbiological transformations of ionone compounds
AssigneeGivaudan SA
InventorVictor Krasnobajew
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Abstract
Novel odorant and/or flavorant mixtures are provided by fermentation of ionone type compounds with microorganisms of the genera Botryodiplodia, Botryosphaeria, or Lasiodiplodia.
Claims2
A mixture prepared by fermenting .beta.-ionone with a fungus selected from the group consisting of the genera Botryodiplodia, Botryosphaeria and Lasiodiplodia under aerobic conditions wherein
- (i) the pH is between 3 and 8;
- (ii) the temperature is between 15.degree. C. and 35.degree. C.,
- (iii) the fermentation time is between 18 and 216 hours,
- (iv) the concentration of the substrate is from 0.5 grams per liter to 20 grams per liter
- (v) the fermentation product is separated from the culture by extraction, and the product is characterized by the presence of at least one of the compounds 2-(3-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl)ethanol or 2-(3-keto-2,6,6-trimethylcyclohex-1-en-1-yl)ethanol.
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Dependencies are inferred from the claim text.