Method for extracting anthocyanin from cowberry

A technology for anthocyanins and fruits, which is applied in the field of extracting anthocyanins from lingonberry, can solve the problems of cumbersome operation process, many residual impurities, and poor regeneration ability, and achieve the effects of simple operation, cost reduction, and increased yield

Active Publication Date: 2009-09-09
SHAANXI JIAHE PHYTOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing method uses ethanol to soak lingonberries to extract anthocyanins, but this method has high cost, more residual impurities, and ion exchange resin treatment, because the ion exchange resin treatment is more complicated and the regeneration ability is poor, so the operation process is more cumbersome Shortcomings

Method used

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Examples

Experimental program
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Embodiment Construction

[0031] 1. a method for extracting anthocyanins from blueberry, is characterized in that, comprises the steps:

[0032] 1] Crush:

[0033] i) take cranberry fruit, pulverize, and squeeze the fruit;

[0034] ii) extracting the juice and centrifuging the fruit to obtain pomace and fruit juice respectively;

[0035] 2] Extract

[0036] i) Control the temperature of the operation process to be ≤ 60°C, soak the obtained pomace in 1-10% acid-water solution at an operating temperature of 30-50°C, and extract 2-3 times after soaking and stirring, each soaking and stirring for 1.5-2 hours , to obtain the extract; the acid in the acid-water solution is hydrochloric acid, sulfuric acid, citric acid or glacial acetic acid, glacial acetic acid is the best, the operating temperature is 40 ° C, and the acid-water solution concentration is 10%.

[0037] 3] Filter:

[0038] i) Control the operating process temperature to ≤60°C,

[0039] ii) mixing the extract finally obtained in step 2] wi...

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PUM

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Abstract

The invention relates to a method for extracting anthocyanin from a cowberry. The method comprises the following steps: 1, crushing the cowberry, 2, extracting the cowberry, 3, filtering the obtained material, and 4, purifying resin: I) controlling the temperature of the operation process to less than or equal to 60 DEG C; II) adsorbing a film filtering liquid finally obtained in step 3 to saturate by resin; III) washing the resin adsorbed to saturate by water; and removing impurities from the resin until washing water shows colorless; IV) desorbing the macroporous absorbent resin by 30 to 50 percent ethanol or methanol, and collecting an effluent liquid; and V) concentrating and drying the effluent liquid to obtain the anthocyanin. The method has the advantages of easy operation, low cost and high extraction content.

Description

technical field [0001] The invention relates to a method for extracting anthocyanins from plants, in particular to a method for extracting anthocyanins from lingonberries. Background technique [0002] The existing method for extracting bilberry anthocyanins is realized by using two methods of macroporous adsorption resin and ion exchange resin. The specific implementation steps can be found in the Chinese patent document No. CN1517343A announced on August 4, 2004. The existing method uses ethanol to soak lingonberries to extract anthocyanins, but this method has high cost, more residual impurities, and ion exchange resin treatment, because the ion exchange resin treatment is more complicated and the regeneration ability is poor, so the operation process is more cumbersome Shortcomings. Contents of the invention [0003] The invention provides a method for extracting anthocyanins with simple operation, low cost and high purity. [0004] Technical scheme of the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/62A61K36/45
Inventor 肖红王晓莹高娟王春德
Owner SHAANXI JIAHE PHYTOCHEM
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