Mixed fermentation device for extracting anthocyanin from plant stems and leaves

Abstract

The invention relates to the field of natural pigment extraction, in particular to a mixed fermentation device for extracting anthocyanin from plant stems and leaves, and aims at solving the problem of providing the mixed fermentation device for extracting anthocyanin from plant stems and leaves. According to the technical scheme, the mixed fermentation device for extracting the anthocyanin from the plant stems and leaves comprises a bottom frame, a fermentation box, a controller, a tearing assembly and a powder spraying and mixing assembly, wherein the powder spraying and mixing assembly is connected with the fermentation box. When the device is used, plant stems and leaves are torn in advance before mixing, the contact area of the stems and leaves and yeast powder is increased, meanwhile, the smoothness of the surfaces of the stems and leaves is destroyed to facilitate attachment of yeast, the stems and leaves are thrown up to be hung in the air in a loose state, and the yeast is sprayed, and the stems and leaves are sufficiently mixed with the yeast powder, the yeast powder is prevented from depositing at the bottom, and the overall fermentation effect is guaranteed.

Description

technical field [0001] The invention relates to the field of natural pigment extraction, in particular to a mixed fermentation device for extracting anthocyanins from plant stems and leaves. Background technique [0002] Anthocyanins, also known as anthocyanins, are water-soluble natural pigments that widely exist in plants in nature. They are colored aglycones obtained by hydrolysis of anthocyanins. Most of the main coloring substances in fruits, vegetables, and flowers Related to it, under the conditions of different pH values ​​of plant cell vacuoles, anthocyanins make the petals show colorful colors. The extraction methods include solvent extraction, pressurized solvent extraction, aqueous solution extraction and microbial fermentation extraction. [0003] In the prior art, plant stems and leaves rich in anthocyanins are added to active yeast strains, sealed and fermented, and plant anthocyanins can be extracted after degradation and activation. When mixing plant stems a...

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Problems solved by technology

[0005] In order to overcome the problem of adding active yeast strains to plant stems and leaves rich in anthocyanins, sealing and fermenting, plant anthocyanins can be extracted after degradation and activation. When mixing plant stems and leaves with yeast powder, stirring and mixing methods are commonly used, because The surface of the plant stems and leaves is relatively smooth, and it is difficult for the yeast powder to adhere to the plant stems and leaves well, and because the yeast powder is heavier and the plant leaves are lighter, most of the yeast powder will slowly deposit at the bottom during the mixing process, so stirring and mixing It is difficult to fully mix the plant stems and leaves with yeast powder, so that the plant stems and leaves at the bottom ferment too quickly, which affects the overall fermentation effect and is not conducive to the extraction of anthocyanins. The technical problem to be solved by the present invention is: to provide a plant stem and leaf extraction Anthocyanin mixed fermentation device

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