Water-dispersed carotenoid powder preparation method

A carotenoid and dispersibility technology, which is applied in the field of preparation of water-dispersible carotenoid powder, can solve the problems of difficulty in controlling the particle size and color of carotenoid powder, difficult to remove cleanly, long time required, etc. The effect of control, low equipment requirements, and low residues

Active Publication Date: 2006-09-27
ZHEJIANG NHU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above solvent method or high temperature solvent method all need to remove a large amount of solvent contained in the system in the protective colloid, which takes a long time and is not easy to remove completely. In addi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Dissolve 100 g of astaxanthin crude crystals, 10 g of ethoxyquin, and 20 g of monoglyceride stearate in 3 L of dichloromethane to prepare an astaxanthin solution. Add 20L ethanol to a 50L kettle equipped with high-speed stirring (≥500rpm), start stirring, then use a high-pressure pump to slowly add the above-mentioned astaxanthin solution into the kettle in the form of spray through the nozzle, and adjust the spray speed so that all The diameter of the precipitated amorphous astaxanthin particles is less than 2 μm. After spraying, use a microporous membrane filter with a pore size of 0.3 μm to filter, wash the filter cake with ethanol, and dry it to obtain ultrafine amorphous astaxanthin. Powder (average particle size 0.9 μm) filter cake. Mix the above filter cake with an aqueous solution containing 300g gelatin, 100g sucrose, 10g VC sodium salt, and 2500ml water, stir and make a slurry, and then homogenize in a high-pressure homogenizer for 5 hours. Granulate in a gra...

Embodiment 2

[0023] Heat and dissolve 50g of β-carotene crude crystals, 10g of tocopherol, and 10g of Span-60 in 2L of butyl acetate to prepare a β-carotene solution. Add 20L isopropanol and 2L water in a 50L kettle with high-speed stirring (3500rpm), start stirring, then use a high-pressure pump to slowly add the above-mentioned β-carotene solution to the kettle in the form of a spray, adjust the spray speed, so that Precipitated particle diameter <2μm. Filtrate with a sintered filter rod with a pore diameter of 0.3 μm, wash the filter cake with 90% isopropanol, and press dry to obtain an ultrafine β-carotene amorphous powder (average particle diameter of 0.7 μm) filter cake. Mix the above filter cake with an aqueous solution containing 200g of modified starch, 5g of VC sodium salt, and 1500ml of water, stir and beat, and then homogenize in a high-pressure homogenizer for 10 hours. The bed is dried to obtain water-dispersible β-carot powder containing 10.5% of β-carotene.

Embodiment 3

[0025] Heat and dissolve 100g of canthaxanthin crude crystals, 20g of tocopherol, 10g of ethoxyquin, and 15g of Span-40 in 3L of chloroform to form a solution. Add 20L of 95% ethanol into a 50L kettle equipped with high-speed stirring, start stirring, then slowly add the above solution into the kettle in the form of spray with a high-pressure pump, and adjust the spray speed so that the diameter of the precipitated particles is less than 2 μm. Filtrate with a sintered filter stick with a pore diameter of 0.3 μm, wash the filter cake with 95% ethanol, and press dry to obtain a cantharidin filter cake with an average particle size of 0.55 μm. Mix the above filter cake with an aqueous solution containing 300g fish gelatin, 100g sucrose, 20g VC sodium salt, and 2500ml water, stir and beat, then homogenize in a high-pressure homogenizer for 5 hours, remove the residual solvent from the emulsified dispersion in a vacuum, and spray Granulation, fluidized drying to obtain water-disper...

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Abstract

The improved water soluble carotenoid powder preparing process includes the following steps: dissolving crude carotenoid in halohydrocarbon or ester solvent containing antioxidant and emulsifier, spraying into alcohol or isopropanol under stirring to separate out amorphous carotenoid powder, filtering out the separated carotenoid with filter film or sintered filter rod, washing the filter cake with alcohol or isopropanol, filtering, adding the filter cake into water solution of protecting colloid and stirring to pulp, homogenize and emulsify, eliminating residual solvent to prepare water dispersed solution, spraying to pelletize, and fluidizing to dry. The said process has easy elimination of solvent, less residue, high efficiency, and easy control of grain size and color of the carotenoid product.

Description

technical field [0001] The invention relates to the preparation of carotenoid powder, in particular to a preparation method of water-dispersible carotenoid powder. Background technique [0002] Carotenoids widely exist in nature, the most important representatives of which are β-carotene, astaxanthin, and canthaxanthin. These substances are important coloring agents for food, cosmetics, feed, and pharmaceutical industries. In addition, some of them are also precursors of vitamin A. Carotenoids are insoluble in water and have little solubility in oil, and most carotenoids are sensitive to heat and oxygen, so they cannot be directly used in coarse crystals and are difficult to be absorbed by animals. Whether it is used in food or other fields, carotenoids generally need to exist in the form of fine particles and need to be protected with protective colloids to resist oxidation. For the purpose of coloring, it is hoped that the carotenoids can increa...

Claims

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Application Information

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IPC IPC(8): A61K9/14A23L1/275A23L5/42
Inventor 陈志荣石立芳仇丹吴景梅王兴宝
Owner ZHEJIANG NHU CO LTD
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