Method for preparing ginkgo biloba leaf extract and application thereof in cigarettes

Abstract

The invention provides a method for preparing ginkgo biloba leaf extract and application thereof in cigarettes. The method includes a step (1) of cleaning draining and slicing fresh ginkgo biloba leaffor use, adopting ethanol solution for microwave extraction and extraction, collecting filtrate after filtration, and obtaining ginkgo biloba leaf extracting solution A; a step (2) of collecting ginkgo biloba leaf residue in the step (1), adding water and biological agent, performing hydrolysis fermentation, adding ethanol in hydrolysis fermented liquid for constant temperature reflux extraction,and obtaining ginkgo biloba leaf extracting solution B after filtration; a step (3) of combining the ginkgo biloba leaf extracting solution A with the ginkgo biloba leaf extracting solution B, performing vacuum concentration and then obtaining the ginkgo biloba leaf extract. The prepared ginkgo biloba leaf extract for cigarettes has specific herb fragrance features of ginkgo biloba leaves. The ginkgo biloba leaf extract serves as an additive to be applied to cigarettes. The ginkgo biloba leaf extract coordinates with cigarette fragrance, the fragrance amount of the cigarettes is enriched, thenegative problem that a conventional extracting process easily causes high irritation and more oral residues is effectively solved, and the ginkgo biloba leaf extract has an effect of removing the content of free radicals in main stream smoke in the cigarettes.

Description

technical field [0001] The invention relates to the field of cigarette essence and fragrance, in particular to a preparation method of ginkgo leaf extract and its application in cigarettes. Background technique [0002] Ginkgo biloba (also known as Gongsun tree, ginkgo) is a plant of the gymnosperm phylum Ginkgoaceae, and is one of the oldest tree species on the earth today. Ginkgo biloba has the reputation of "the giant panda in the plant kingdom", and it is a "living fossil" for studying the deep geological changes of the ancient earth. It has been listed as a second-class rare protected tree species by the state. my country's ginkgo resources account for about 75% of the world's total, ranking first in the world. Ginkgo biloba is artificially cultivated in most parts of the country, mainly distributed in Hubei, Zhejiang, Anhui, Fujian, Henan, Sichuan and other provinces and cities. Thousands of ancient ginkgo trees grow in the deep mountains of Suizhou, Hubei, and it is...

AI Technical Summary

Problems solved by technology

The inventor found in the course of the research that: the ginkgo leaf extract obtained simply by the solvent extraction process, because the extraction temperature is higher, the volatile components of some ketones and esters are prone to oxidative decomposition, resulting in loss of aroma, The characteristic aroma of the product is not obvious, and the natural feeling is not ideal. Adding it to cigarettes is likely to cause negative effects such as strong irritation and more oral residues, and cannot meet the requirements for use as an additive in tobacco products.

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