Method for extracting high-ester seasoning liquid from after-run

Abstract

The invention discloses a method for extracting a high-ester seasoning liquid from after-run and belongs to the field of recovering a white spirit fermentation by-product. The method comprises the following steps of selecting after-run raw materials, pretreating the after-run raw materials and extracting and separating the high-ester seasoning liquid. The high-ester seasoning liquid is complex liquid comprising a plurality of flavor components such as ethyl caproate as a main flavor component, has the advantages of high ethyl caproate content above 250g / L, low long-chain higher fatty acid ethyl ester content, no color, transparent character, and thick, pure and appropriate fragrance, and can be used for white spirit blending thereby obviously improving white spirit quality. The high-ester seasoning liquid is extracted from after-run obtained by special material selection of a white spirit fermentation by-product. In the whole method, the high-ester seasoning liquid does not contact with any chemical reagents and is a natural seasoning liquid.

Description

technical field [0001] The invention relates to a method for separating and extracting high-ester seasoning liquid for wine, which belongs to the field of recovery of liquor fermentation by-products. Background technique [0002] Liquor tail is a low-alcohol liquor picked after the interruption of the traditional solid liquor distillation process. The alcohol content is generally between 14 and 20°, and the liquor tail contains a large amount of ester components. At present, most wineries still use the method of returning the wine tail to the bottom pot and steaming it on a string to extract the remaining part of the alcohol and some esters in the wine tail. This traditional method has disadvantages such as damage to the wine, only part of the volatile esters can be extracted, and a large amount of beneficial components in the tail of the wine cannot be effectively extracted. Individual manufacturers have used supercritical extraction to extract the active ingredients in wi...

AI Technical Summary

Problems solved by technology

Carbon dioxide is a non-polar solvent. For non-polar small molecule substances, such as lower fatty acid ethyl esters such as ethyl caproate, ethyl lactate, and ethyl acetate, and volatile small molecules such as alcohol, caproic acid, butyric acid, etc. The substance has a high extraction rate, but the extraction rate is very low for more polar acidic substances or macromolecular substances such as higher fatty acid ethyl esters

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