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Method for extracting lutein ester compounds form marigolds

A technology of ester compounds and lutein, applied in chemical instruments and methods, separation methods, organic chemistry, etc., can solve the problems of low yield and purity, and achieve simple process, low production cost and high cost acquisition rate Effect

Inactive Publication Date: 2010-06-30
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There have been reports on the extraction of lutein esters from marigold dried flower granules, but there are generally problems of low yield and purity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Take dried marigold flower granules, crush them and pass through a 20-mesh sieve, weigh 10.0g, add 200ml of 95% medical ethanol, ultrasonically extract at room temperature for 30min, filter, add 200ml of 95% medical ethanol to the dregs, ultrasonically extract for 30min, and filter Remove the dregs, extract the medicinal dregs again, combine the filtrates, and suction filter to obtain a clarified filtrate, recover the ethanol from the filtrate to dryness, and dry under reduced pressure at 40°C to obtain 2.4g brownish yellow crude extract; use the above crude extract with After dissolving 20ml of 95% medical ethanol, mix the silica gel with the ratio of crude extract weight: silica gel weight (200-300 mesh) 1:1.3 and mix evenly. 54g, with 900ml sherwood oil: ethyl acetate 3: 1 elution, the orange-red liquid under elution is concentrated, dried under reduced pressure at 40 ℃ promptly obtains the lutein ester compound of 0.855g, and yield is 8.55% (with Marigold dried flow...

Embodiment 2

[0016] Take dried marigold flower granules, crush them and pass through a 20-mesh sieve, weigh 20.0g, add 400ml of 95% medical ethanol, ultrasonically extract 30mm at room temperature, filter, add 400ml of 95% medical ethanol to the dregs, ultrasonically extract for 30min, and filter Remove the dregs, extract the medicinal dregs again, combine the filtrates, and suction filter to obtain a clarified filtrate, recover the ethanol from the filtrate to dryness, and dry under reduced pressure at 40°C to obtain 5.6 g of a brownish yellow crude extract; use the above crude extract with After 40ml of 95% medical ethanol is dissolved, mix the silica gel with the ratio of crude extract amount: silica gel amount (200-300 mesh) 1: 1.3 and mix evenly. After drying, put it on a silica gel column. The silica gel column is filled with 80g of 200-300 mesh silica gel , eluted with 900ml petroleum ether: ethyl acetate 3: 1, concentrated the orange-red liquid under the elution, dried under reduced...

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PUM

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Abstract

The invention discloses a method for extracting lutein ester compounds form marigolds, relating to an extraction method for extracting natural and edible uranidin lutein ester compounds from dried flower particles of the marigolds by adopting column chromatography and comprising two steps of ultrasonic extraction and the column chromatography. The extraction rate of the obtained lutein ester compounds can achieve 8.4%-8.6%, the lutein ester compounds have favorable purity after being determined by ultraviolet spectrophotometry, and the color scale E474nm1% is approximate to 698.

Description

technical field [0001] The invention relates to a method for extracting lutein ester compounds from dry marigold flower granules. Background technique [0002] Marigold (Tagetes erecta L.), belonging to Compositae (Compositae) Tagetes genus (Tagetes Linn.), is one of the most abundant sources of natural edible yellow lutein ester compounds. Lutein esters are a class of long-chain polyene compounds. First of all, they have good coloring effect and can be used in meat, poultry, eggs and beverages. Secondly, they have a good antioxidant effect and can be developed into health care products. In addition, they also have anti-cancer, anti-ultraviolet and other effects. At present, lutein esters have been used in health products, food nutritional supplements, feed additives, tobacco and cosmetics and other industries. In addition, lutein, the parent of lutein esters, has a complex three-dimensional configuration, making it difficult to synthesize artificially. Therefore, it is ...

Claims

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Application Information

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IPC IPC(8): C07C403/24B01D15/34
Inventor 师彦平许丽卫戚欢阳
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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