| 摘要 |
1473760 Flavouring NESTLE SA 17 Sept 1975 [3 Oct 1974] 38189/75 Heading A2B An aqueous medium containing a flavouring or aromatising agent is contacted with a polystyrene macromolecular reticular resin, a first fraction comprising an aqueous medium containing substances not retained on the resin is recovered, substances retained on the resin are recovered using an organic solvent to form a second fraction and one of the fractions is added to a foodstuff to flavour it. Resins specified include cross-linked polystyrenes, polydivinyl benzenes and copolymers of of styrene and divinyl benzene. The material added to the foodstuff may be the crude fraction, or a modified fraction prepared by concentration, selective extraction, fractionation or purification. Examples describe the preparation of agents from tomato concentrate and cocoa butter. |
