Abstract

The invention proceeds from a method for producing soluble aroma concentrates from organic material, for example plants, fruits, vegetables, herbs, seeds and animal products, by extraction of the aromas by means of water and/or an organic solvent and subsequent separation off of the solvent. According to the invention, the organic solvent used is an alcohol, and the extraction solution and the alcohol are introduced into a reaction chamber with a protective atmosphere and a temperature below 100°C. In a first method variant, the solvent or solvents contained in the extraction solution is or are separated in the reaction chamber by evaporation of the aroma components, and therefore the dried aroma components accumulate in the reaction chamber.

IPC Classes  ?

• A23F 3/42 - Isolation of tea flavour or tea oil
• A23F 5/48 - Isolation of coffee flavour or coffee oil
• A23F 5/50 - Isolation of coffee flavour or coffee oil from coffee extract
• A23L 1/221 - Natural spices, flavouring agents, or condiments; Extracts thereof
• A23L 1/222 - from fruit, e.g. essential oils
• A23L 2/10 - Concentrating or drying of juices by heating or contact with dry gases

Abstract

The invention relates to a method for preserving organic piece goods, for example, foods such as fruits, plants, parts thereof, small animals, and animal piece goods, and organic piece goods from the non-food sector, for example, cut flowers, using a dehydrating solvent and by drying in a drying device, and to a method for producing preserved organic piece goods. According to the invention, the organic piece goods are dried in the drying device in the presence of the solvent at temperatures below 100°C, preferably in a fluidized bed. Said procedure has the advantage of getting by with significantly lower drying temperatures compared to freeze drying, requiring substantially shorter drying times, and thus having significantly better energy efficiency, and being more environmentally friendly. A further important advantage is the gentle drying procedure, wherein the organic piece goods substantially retain the original shape, color, and contents thereof.

IPC Classes  ?

• A23B 4/033 - DryingSubsequent reconstitution with addition of chemicals
• A23B 7/022 - DehydratingSubsequent reconstitution with addition of chemicals
• A23L 3/44 - Freeze-drying
• A23L 3/50 - Fluidised-bed drying
• A01N 3/00 - Preservation of plants or parts thereof, e.g. inhibiting evaporation, improvement of the appearance of leavesGrafting wax
• A23L 1/22 - Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes
• F26B 3/22 - Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact the heat source and the materials or objects to be dried being in relative motion, e.g. of vibration