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Preparation method for anthocyanin

A technology of anthocyanin and broccoli, which is applied in the field of anthocyanin preparation, can solve the problems of environmental pollution of broccoli leaves, etc., and achieve the effects of excellent heat preservation effect, convenient equipment cleaning, and excellent material selection

Inactive Publication Date: 2017-03-29
宁夏天瑞产业集团现代农业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects of the prior art, the present invention provides a preparation method for extracting anthocyanins with simple process, convenient operation, short extraction time, low production cost, and environmental protection. The raw materials for extracting anthocyanins are selected from broccoli leaves, Thereby solving the problem of broccoli leaves polluting the environment, and expanding the plant sources for extracting anthocyanins

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of anthocyanins, comprising the steps of:

[0032] (1) Raw material collection: Pick fresh broccoli leaves without rot and browning.

[0033] (2) Drying: After washing the raw materials collected in step (1), they were placed in a hot-air drying oven for drying treatment. The drying temperature was 50° C. and the drying time was 4 hours.

[0034] (3) Pulverization: the broccoli leaves treated in step (2) were pulverized to 40 mesh with a jet mill to obtain leaf powder.

[0035] (4) Extraction of anthocyanins: according to the ratio of solid to liquid 1:10, mix 95wt% propanol with the leaf powder treated in step (3), the extraction time is 40min, and the extraction temperature is 50°C to obtain the extract.

[0036] (5) Concentration: extract and concentrate the extract treated in step (4) with a TS-NS series extractor concentrator. The temperature of the extracted material is 98° C., and the temperature of the concentrated material is 40° C. to obt...

Embodiment 2

[0042] A preparation method of anthocyanins, comprising the steps of:

[0043] (1) Raw material collection: Pick fresh broccoli leaves without rot and browning.

[0044] (2) Drying: After washing the raw materials collected in step (1), they were placed in a hot-air drying oven for drying treatment. The drying temperature was 80° C. and the drying time was 8 hours.

[0045] (3) Pulverization: the broccoli leaves treated in step (2) were pulverized to 40 mesh with a jet mill to obtain leaf powder.

[0046] (4) Extraction of anthocyanins: according to the ratio of solid to liquid 1:10, mix 95wt% propanol with the leaf powder treated in step (3), the extraction time is 80min, and the extraction temperature is 70°C to obtain the extract.

[0047] (5) Concentration: extract and concentrate the extract treated in step (4) with a TS-NS series extractor concentrator. The temperature of the extracted material is 98° C., and the temperature of the concentrated material is 60° C. to obt...

Embodiment 3

[0053] A preparation method of anthocyanins, comprising the steps of:

[0054] (1) Raw material collection: Pick fresh broccoli leaves without rot and browning.

[0055] (2) Drying: After washing the raw materials collected in step (1), they were placed in a hot air drying oven for drying treatment. The drying temperature was 65° C. and the drying time was 6 hours.

[0056] (3) Pulverization: the broccoli leaves treated in step (2) were pulverized to 40 mesh with a jet mill to obtain leaf powder.

[0057] (4) Extraction of anthocyanins: According to the ratio of solid to liquid 1:10, mix 95wt% propanol with the leaf powder treated in step (3), the extraction time is 60min, and the extraction temperature is 60°C to obtain the extract.

[0058] (5) Concentration: extract and concentrate the extract treated in step (4) with a TS-NS series extractor concentrator. The temperature of the extracted material is 98° C., and the temperature of the concentrated material is 50° C. to obt...

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PUM

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Abstract

The invention particularly relates to a preparation method for anthocyanin. The preparation method comprises the following steps of raw material collecting, stoving, smashing, anthocyanin extracting, concentrating, distilling, drying and superfine grinding. Propyl alcohol of 95wt% serves as an extracting solution. A concentrating and extracting machine of a TS-NS series is used for concentrating. A superfine grinder of the HMB-701 model is used for superfine grinding. The whole process works cooperatively, and finally powder with a high content of the anthocyanin is obtained. The preparation method is simple in process, easy to operate, short in extracting time, low in production cost and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of extraction of plant functional active ingredients, and in particular relates to a preparation method of anthocyanins. Background technique [0002] Anthocyanin is a water-soluble plant pigment, belonging to flavonoids, mostly in the form of glycosides, and is the main coloring substance of plant petals and fruits. As a secondary metabolite in plants, anthocyanins widely exist in the tissue fluid of plant petals and fruits and the epidermal cells of stems and leaves, and also in the vacuoles of plant cells, which can be transformed from chlorophyll and can be The acidity and alkalinity of the cell fluid change the color. The cell fluid is acidic and reddish, and the cytosol is alkaline and blue. Anthocyanins are plant secondary metabolites that play an important role in physiology. The color of the petals and fruit attracts animals for pollination and seed dispersal. Anthocyanin is a pure natural anti-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/62
CPCC07D311/62
Inventor 路新魏晓琴梁小思张磊
Owner 宁夏天瑞产业集团现代农业有限公司
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