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Carotenoid and other anti-oxidants extraction

A carotene and antioxidant technology, applied in the direction of additional food elements, chemical instruments and methods, azo dyes, etc., can solve the problems of reducing the yield of lycopene, and achieve the effect of simple method, increased yield and cost-effective

Inactive Publication Date: 2001-06-20
SOC DES PROD NESTLE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the use of large amounts of inorganic salts in food preparations can be harmful, on the other hand, the addition of minerals such as calcium chloride reduces the yield of lycopene from tomatoes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: the preparation of tomato extract

[0043] Tomatoes were washed with water and cut into slices, processed first with water (1:1, w:w) in a grinder and then in a colloid mill. The diluted tomato paste was transferred to a reaction tank, incubated under vacuum (0.8 bar pressure) and stirred for 60 minutes. The temperature was adjusted from an initial 30°C to 36°C. The incubated tomato solution was centrifuged through a horizontal decanter at a rate of 260 l / h, the solids (husks and seeds) were discarded, and the red liquid was heat-treated at 90°C for 5 seconds using a scraped-surface heat exchanger, after which Cool to 4°C. A colored complex is formed during this step. The heat-treated juice was centrifuged in a disc centrifuge. Discard the colorless fresh tomato-flavored liquid, and sterilize the red muddy precipitate at 126°C for 2 seconds. The sterilized red solution was frozen on metal plates and lyophilized in a freeze dryer for 4 days.

[0044] ...

Embodiment 2

[0046] Embodiment 2: the chemical composition of the tomato extract obtained in embodiment 1

[0047] Different analyzes were carried out on the red powder obtained in Example 1 or on the lycopene extract of tomato to determine the amount of lycopene and other various compounds. The composition is given in Table 2 below.

[0048] components

[0049] The lycopene in the extract is 7 times more concentrated than in the dried tomato paste. The alpha-tocopherol in the extract is 13 times more concentrated.

Embodiment 3

[0050] Example 3: Carotenoid-rich extracts from carrots

[0051] Carrots were peeled, washed with water and cut into slices, processed first with water (1:1, w:w) in a grinder and then in a colloid mill. The diluted carrot paste was transferred to a reaction tank, incubated under vacuum (0.8 bar pressure) and stirred for 60 minutes. The temperature was adjusted from an initial 30°C to 36°C. The incubated carrot solution was centrifuged at 260 l / h through a horizontal decanter, the solids (fibers) were discarded, and the orange liquid was heat-treated at 90°C for 5 seconds using a scraped-surface heat exchanger, then cooled to 4°C. A colored complex is formed during this step. The heat-treated juice was centrifuged in a disc centrifuge. Discard the colorless fresh carrot-flavored liquid, and sterilize the red muddy precipitate at 126°C for 2 seconds. The sterilized orange solution was frozen on metal plates and lyophilized in a freeze dryer for 4 days.

[0052] The result...

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PUM

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Abstract

A carotenoid-containing plant extract in the form of a lipid-protein complex particularly enriched in carotenoids and other anti-oxidants and process for preparing it, wherein a crushed carotenoid-containing plant material is incubated, then a juice recovered after separation of plant solids is subjected to a heat treatment, a precipitate is then recovered from the heated liquid phase after a second separation to obtain a coloured sludge extract.

Description

field of invention [0001] The present invention relates to a plant extract containing at least proteins, polysaccharides, lipid compounds and minerals, said extract being especially rich in carotenoids and other antioxidants. The present invention also relates to a method for preparing such an extract without using any solvents, nor processing aids or additives. Background of the invention [0002] Plant pigments are usually separated with organic solvents. For example, carotenoids can be extracted with hydrocarbon solvents such as chloroform, hexane, and other organic solvents. [0003] G.Salder et al. ("Journal of Food Science" 1460-1461,55,5,1990) described the rapid extraction from reconstituted tomato paste and pink grapefruit homogenate with hexane-ethanol-acetone (50:75:25) A method for lycopene and beta-carotene, which yielded a pure extract with high recovery of these carotenoids. A major concern is that the use of organic solvents can be detrimental to the furth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J1/00A23K20/179A23K50/42A23K50/48A23L5/44A23L33/105A23L33/155C09B61/00C09B67/54
CPCA23K1/1606C09B61/00A23L1/2753A23K1/1866A23L1/303A23K1/1853A23L1/3002A23K50/48A23K20/179A23K50/42A23L5/44A23L33/105A23L33/155
Inventor M·C·道吕M·A·胡伊莱拉
Owner SOC DES PROD NESTLE SA
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