Preparation method and equipment of elderberry extract

Abstract

The invention relates to the field of elderberry extraction, in particular to a preparation method and equipment of an elderberry extract. The preparation method comprises the following steps of: preparing an elderberry extracting solution; obtaining an elderberry extracting solution, and performing first membrane separation treatment on the elderberry extracting solution to obtain an elderberry extracting clarified liquid; obtaining an elderberry clarified liquid, and performing secondary membrane separation treatment on the elderberry clarified liquid to obtain an elderberry ultrafiltrationfiltrate; obtaining an elderberry ultrafiltration filtrate, and carrying out third membrane separation treatment on the elderberry ultrafiltration filtrate to obtain an elderberry ultrafiltration trapped fluid; obtaining the elderberry ultrafiltration trapped fluid; and carrying out fourth membrane separation treatment on the elderberry ultrafiltration trapped fluid, and freeze drying the productobtained by fourth membrane separation treatment to obtain an elderberry extract. According to the preparation method, low-temperature extraction, membrane separation and freeze drying are combined, and a whole-course low-temperature process mode is adopted, so that the degradation loss of anthocyanin is avoided to the maximum extent.

Description

Technical field [0001] The invention relates to the field of elderberry extraction, in particular to a method and equipment for preparing an elderberry extract. Background technique [0002] Elderberry is the fruit of Sambucus nigra Linn (Sambucus nigra Linn), the English name Elderberry, which is produced in Europe. Elderberry occupies an important place in the history of European herbal medicine. Hippocrates, respected as the "father of medicine" in the West, called elderberry his medicine box because of the rich health benefits of elderberry. In modern medicine, elderberry is considered as a sweating medicine for fever, cold or nasal mucosal diseases. In modern medicine and pharmacological research, the flavonoids and polyphenols contained in elderberry have a good preventive effect on H1N1 and other viruses. [0003] The traditional production methods of elderberry extract include ethanol extraction, macroporous resin purification, and supercritical extraction. When organic...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, a preparation method and equipment for elderberry extract are provided. This technical solution solves the problem that the anthocyanin components are unstable under light and high temperature when cyanidin-3-O-glucoside is used as a standard. The problem is that the method and equipment use low-temperature extraction, membrane separation, and freeze-drying, and adopt a low-temperature process throughout the process to avoid the degradation loss of anthocyanins to the greatest extent.

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