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Purification method from lutein extractive to high-purity lutein ester

A technology of lutein ester and lutein, which is applied in the field of solvent dissolution of lutein extract, can solve the problem of not producing high-purity lutein ester, and achieve the effect of easy absorption and high stability

Inactive Publication Date: 2013-11-06
HEBEI ZHONGJIN BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason why the lutein products currently on the market are all lutein extracts is because there is no method to manufacture high-purity lutein esters

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Add 80kg of ethyl acetate and 20kg of ethanol into a 400L stainless steel tank with a stirring device, and stir evenly. Add 100kg of lutein extract, rotate at 120r / min, stir at room temperature for 15-30 minutes, pass through a tube centrifuge, and collect centrifugal sediment. Add 50kg of ethyl acetate and 25kg of ethanol to the centrifugal sediment, stir and centrifuge. Then, add 37.5 kg of ethyl acetate and 37.5 kg of ethanol to the collected centrifuge sediment and stir and centrifuge again. Finally, add 75 kg of ethanol to wash the centrifuged precipitate, stir and centrifuge. Vacuum drying to obtain high-purity lutein ester powder.

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PUM

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Abstract

The invention discloses a purification method from lutein extractive to high-purity lutein ester, which comprises the following steps: adding a certain amount of lutein extractive into a solution of proportionally mixed ethyl acetate and ethanol; stirring at normal temperature for 15-30 minutes; passing through a tube centrifuge, and collecting the centrifugal sediment; and sequentially stirring the centrifugal sediment with solutions of proportionally mixed ethyl acetate and ethanol in different proportions, carrying out centrifugal settling, adding the centrifugal sediment into a certain amount of ethanol, uniformly stirring, passing through the tube centrifuge to obtain the lutein ester, carrying out vacuum drying to obtain the high-purity lutein ester powder.

Description

technical field [0001] The invention relates to a purification process of high-purity lutein ester. Specifically, it relates to a method for dissolving lutein extract in a solvent and centrifugally purifying it into lutein esters. The product is used in food, beverage, cosmetics, medicine and the like. Background technique [0002] Lutein is an oxygenated carotenoid with multiple functions. It has anti-oxidation, inhibits active oxygen free radicals, anti-cancer, enhances immunity, and reduces the incidence of cardiovascular diseases, especially in the prevention and treatment of senile cataract and age-related macular degeneration. Studies have shown that the stability of lutein esters is better than that of lutein, and it is easily converted into free lutein in the body. The reason why currently commercially available lutein products are all lutein extracts is that there is no method for producing high-purity lutein esters. Therefore, it is a technical problem to be so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C403/24
Inventor 张志忠张建光张志华史晓博朱书芳苏雨张希贵
Owner HEBEI ZHONGJIN BIOTECH