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Extraction of carotene

A carotene and process step technology, applied in azo dyes, organic dyes, organic chemistry and other directions, to achieve the effects of low equipment requirements and short time consumption

Inactive Publication Date: 2013-04-10
黄芷若
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At this stage, my country's β-carotene products mainly rely on imports, and there are no domestic manufacturers to develop β-carotene resources and natural β-carotene

Method used

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  • Extraction of carotene

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Embodiment Construction

[0011] The process steps of the present invention are: take the cleaned and de-impured sample fragrant sweet potato, cut it into small pieces, put it into a tissue masher and break it into a paste, place it in a triangular flask, and add the volume ratio of 1: 9-1:1 acetone-petroleum ether mixed solution, the ratio of solid to liquid is 1:2-1:6, seal, extract in an ultrasonic cleaner for 5-30min, centrifuge to separate the supernatant, let stand for stratification, discard Remove the liquid in the lower layer, and repeat the extraction 2 to 6 times; combine and concentrate the obtained extracts, put them on an aluminum peroxide anhydrous sodium sulfate chromatography column, collect the yellow liquid that elutes first, concentrate, and dry to obtain β-carotene.

[0012] The present invention selects the volume ratio of acetone-petroleum ether, the solid-liquid ratio of sweet potatoes and the extractant, the extraction time, and the number of extractions as factors affecting the...

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Abstract

The invention provides extraction of carotene and relates to the extraction of food additives, in particular to the extraction of the carotene. The invention provides the carotene extraction with short time consumption and high extraction rate. The extraction adopts the following technical scheme that the extraction comprises the process steps that samples of fragrant sweet potatoes subjected to washing and impurity removal are taken and cut into small blocks, the small blocks are put into a tissue pounding machine to be smashed into paste, the paste is placed into a conical flask, mixed solution of acetone-petroleum ether with the volume ratio being 1:9-1:1 is added, the material liquid ratio is 1:2-1:6, the opening is sealed, the extraction is carried out for 5 to 30 minutes in a supersonic cleaner, supernatant is centrifugally separated out, the still standing is carried out for layering, the liquid at the lower layer is thrown away, the repeated reaction is carried out for 2 to 6 times, the obtained extracting liquid is merged and concentrated and passes through alumina anhydrous sodium sulfate chromatographic columns, yellow liquid which is firstly eluted is collected, concentration and drying are carried out, and beta-carotene is obtained.

Description

Technical field: [0001] The invention relates to the extraction of a food additive, more specifically, to the extraction of carotene. Background technique: [0002] Sweet potato, also known as sweet potato, sweet potato, sweet potato and mountain shoot, belongs to the rhizome Convolvulaceae annual vine herb. As an important food crop in the world, research on nutritional value and processing are very active. More and more research results show that sweet potato is rich in nutritional value and rich in 18 kinds of amino acids, including 8 kinds of essential amino acids necessary for the human body; the content of dietary fiber is 10 times that of rice noodles, and the content of VB1 and VB2 is 2 times that of rice noodles. VE is 9.5 times that of wheat, and the content of VC and carotenoids is dozens of times higher than that of rice noodles. The Japanese National Institute of Cancer Prevention conducted experimental tumor suppression tests on more than 40 kinds of vegetabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C403/24C09B61/00
Inventor 黄芷若
Owner 黄芷若