Ginkgo seed health-care fermented tea as well as preparation method and application thereof

Abstract

The invention discloses ginkgo seed health-care fermented tea as well as a preparation method and application thereof. The preparation method comprises the following steps of performing extraction onpolygonatum kingianum, tartarian buckwheat and Chinese jujubes respectively with aqueous ethanol, dissolving extract concentrate with purified water, uniformly mixing the dissolved extract concentratewith big-leaf sunned tea, ginkgo leaves and stevia rebaudiana to obtain a mixture, placing the mixture in a fermenting house, and performing fermentation for 20-50 days so as to obtain the ginkgo seed health-care fermented tea. The ginkgo seed health-care fermented tea disclosed by the invention is simple in technology, short in fermentation time and beneficial for industrial production. The stevia rebaudiana, the tartarian buckwheat and the Chinese jujubes, which are added, can improve the bitter taste of the ginkgo leaves, enrich the mouth feel, and enable the tea to be mellow in taste; andthe core temperature of a fermented tea heap is optimized, so that the content of ginkgolic acid is effectively controlled, lactone components are reserved to the maximum extent, the product safety is improved, the health-care efficacy is also improved, and the ginkgo seed health-care fermented tea has favorable application prospects.

Description

technical field [0001] The invention belongs to the technical field of tea product fermentation processing, and in particular relates to a ginkgo health-care fermented tea and a preparation method thereof. Background technique [0002] Ginkgo biloba is a plant of the genus Ginkgo in the Ginkgo family. It is one of the oldest relict plants in the world and is known as "the living fossil of plants". Ginkgo biloba is the main medicinal part of Ginkgo biloba, and its chemical components include flavonoids, terpenoid lactones, ginkgolic acid, organic acids, polyprenol, etc. Pharmacological studies have shown that Ginkgo biloba has the functions of scavenging free radicals and peroxides, lowering blood lipids, improving cerebral ischemia, inhibiting platelet aggregation and thrombus formation, and is often used to prevent and treat cardiovascular and cerebrovascular diseases. Due to its unique medicinal and health value, the development of health care products based on Ginkgo bil...

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Problems solved by technology

3. Ginkgolide is a fat-soluble compound, and the effective ingredients are limited when brewed directly with hot water, and its actual utilization rate is relatively low.

Publication No. CN 101628018 A "Preparation Method of Ginkgo Leaf Rich in Flavonoids and Low Toxicity", by rinsing, spreading, rolling and kneading ginkgo leaves, and then fermenting themselves under anoxic conditions, ginkgo leaves with reduced toxic components and increased flavonoid content are obtained, but bad taste

The publication number is CN104286247 "A Production Method of Detoxified Ginkgo Acid", which adopts the inoculation of Saccharomyces coronaris as the main fermentation detoxification strain to prepare a starter, which is used for the fermentation of Ginkgo biloba leaves, which can effectively reduce ginkgolic acid substances and remove Ginkgo biloba The tea is bitter and astringent, but the isolation and identification of the strains, the preparation of the starter is more complicated and the cost is higher

It can be seen that the fermentation process has a detoxification effect on ginkgo leaves, but the traditional fermentation process does not control the fermentation conditions, is susceptible to adverse effects from the external environment, is susceptible to pollution, uneven fermentation, long fermentation time, and the ginkgo obtained from fermentation The leaves have earthy smell and other problems

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