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Method for extracting anthocyanin from cowberry

An anthocyanin and resin technology, which is applied in the field of extracting anthocyanin from bilberry, can solve the problems of complicated ion exchange resin treatment, cumbersome operation process, poor regeneration ability, etc., and achieves the effects of low cost, simple operation and cost reduction.

Inactive Publication Date: 2009-09-09
SHAANXI JIAHE PHYTOCHEM
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AI Technical Summary

Problems solved by technology

This method has the disadvantages of high cost, more residual impurities, and the use of ion exchange resin for treatment. Due to the complexity of ion exchange resin treatment and poor regeneration ability, the operation process is relatively cumbersome.

Method used

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Embodiment Construction

[0014] A method for extracting anthocyanins from lingonberries, characterized in that it comprises the steps:

[0015] 1] Pulverization: take the lingonberry fruit, pulverize it, squeeze the juice from the fruit; centrifuge to obtain pomace and fruit juice respectively;

[0016] 2] Extraction: control the temperature of the operation process to ≤60°C, soak the obtained pomace with 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 1.5 ~2h to obtain the extract;

[0017] 3] Filtration: control the temperature of the operation process to ≤60°C, mix the finally obtained extract with the juice obtained in step 1] to form a mixed solution, after high-speed centrifugation, take the supernatant and perform ultrafiltration with inorganic membrane ultrafiltration equipment to obtain Membrane filtrate; the membrane pore size of inorganic membrane ultrafiltration equipment is 10nm, 20nm, 50nm or 1...

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Abstract

The invention relates to a method for extracting anthocyanin from a cowberry. The method comprises the following steps: taking cowberry fruits, crushing the cowberry fruits, and squeezing the fruits into juice; centrifugating the juice to obtain fruit residues and fruit juice respectively; controlling the temperature of the operation process to less than or equal to 60 DEG C; soaking the obtained fruit residues in a 1 to 10 percent acid-water solution at an operation temperature of between 30 and 50 DEG C; soaking, stirring and extracting the fruit residues for 2 to 3 times, and soaking and stirring the fruit residues for 1.5 to 2 hours every time to obtain an extracting solution; mixing the extracting solution finally obtained and the fruit juice to form a mixed liquor, centrifugating the mixed liquor at a high speed, taking a supernate to carry out ultrafiltration by inorganic film ultrafiltration equipment to obtain a film filtering liquid; purifying resin; controlling the temperature of the operation process to less than or equal to 60 DEG C; adsorbing the film filtering liquid finally obtained to saturate by the resin; washing the resin adsorbed to saturate by water; removing impurities from the resin until washing water shows colorless; desorbing the macroporous absorbent resin by 30 to 50 percent ethanol or methanol, and collecting an effluent liquid; and concentrating and drying the effluent liquid to obtain the anthocyanin.

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 anthocyanins from lingonberry is to adopt two methods of macroporous adsorption resin and ion exchange resin to realize together, use ethanol to soak lingonberries and then extract anthocyanins, its specific implementation steps can be found in 2004 8 The announcement number announced on April 4 is the Chinese patent document of CN1517343A. This method has the disadvantages of high cost, many residual impurities, and the use of ion exchange resin for treatment. Due to the complicated treatment of ion exchange resin and poor regeneration ability, the operation process is relatively cumbersome. Contents of the invention [0003] The invention provides a method for extracting anthocyanins with simple process, low cost and high anthocyanin pur...

Claims

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Application Information

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