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Preparation method of beta-carotene microcapsule used for coloring

A carotene and microcapsule technology, applied in the field of carotenoid preparation, can solve the problem of high cost and achieve high bioavailability and high product safety

Active Publication Date: 2012-11-28
ZHEJIANG NEW WEIPU ADDITIVE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In the above literature reports, different emulsification embedding materials are used to make carotenoids into emulsion or microcapsules, but the existing commercial emulsification embedding materials are used in the preparation process, so the cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of the β-carotene microcapsules for coloring is as follows:

[0030] (1) Add water to 100kg of dry waxy cornstarch and disperse it into 30% starch milk, then add 0.1kg of high temperature-resistant α-amylase (enzyme activity 20000u / g), adjust the pH value to 5.5, and enzymolyze it at 90°C for 30 minutes , and then adjust the pH value to 8;

[0031] (2) Melt 1kg of β-carotene and 1kg of octenyl succinic anhydride at 160°C in advance, and then add them dropwise at a constant speed within 30 minutes under the protection of nitrogen atmosphere to the step (1) described in the step (1) under high-speed shear of 5000r / min In the starch milk, continue to shear and emulsify for 60 minutes after the dropwise addition, and use the pH value controller to maintain the pH value of the system at 8 throughout;

[0032] (3) Adjust the pH value to 7, then homogenize and spray-dry to obtain β-carotene microcapsules with a content of 0.8% and a volume averag...

Embodiment 2

[0035] The preparation method of the β-carotene microcapsules for coloring is as follows:

[0036] (1) Add water to 100kg of dry waxy cornstarch and disperse it into 40% starch milk, then add 1kg of high temperature-resistant α-amylase (enzyme activity 25000u / g), adjust the pH value to 6.5, and enzymolyze it at 75°C for 10 minutes, Then adjust the pH value to 9;

[0037] (2) Pre-melting 10kg of β-carotene, 3kg of octenyl succinic anhydride and 30kg of soybean oil at 120°C, and then adding them dropwise at a constant rate of 10,000r / min under high-speed shear within 90 minutes under the protection of a nitrogen atmosphere (1 ) in the starch milk, continue to shear and emulsify for 30 minutes after the dropwise addition, and use the pH value controller to maintain the pH value of the system at 9 throughout;

[0038] (3) Adjust the pH value to 7.5, then homogenize and spray-dry to obtain β-carotene microcapsules with a content of 4.7% and a volume average particle size of 1.5 μm...

Embodiment 3

[0041] The preparation method of the β-carotene microcapsules for coloring is as follows:

[0042](1) Add water to 100kg of dry-based waxy corn starch to disperse into 35% starch milk, then add 0.5kg of high-temperature-resistant α-amylase (enzyme activity 23000u / g), adjust the pH value to 6, and enzymolyze at 80°C for 20 minutes , and then adjust the pH value to 8.5;

[0043] (2) Melt 5kg of β-carotene, 3kg of octenyl succinic anhydride and 20kg of corn oil at 130°C in advance, and then add them dropwise at a constant rate of 7000r / min within 50 minutes under the protection of a nitrogen atmosphere (1 ) in the starch milk, continue to shear and emulsify for 40 minutes after the dropwise addition, and use the pH value controller to maintain the pH value of the system at 8.5 throughout the process;

[0044] (3) Adjust the pH value to neutral, then homogenize and spray-dry to obtain β-carotene microcapsules with a content of 3.1% and a volume average particle size of 0.9 μm.

...

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Abstract

The invention discloses a preparation method of beta-carotene microcapsules. Various solvents are used in most existing methods, wherein some solvents such as grease will exist all the time with products after high temperature treatment, and most of the methods have complex technology and use a lot of raw materials. The method comprises: dispersing 100 parts of dry basis waxy corn starch to 30%-40% of starch milk by adding water, and after adjusting the pH value to be 5.5-6.5, enzymatically hydrolyzing in the presence of 0.1-1 parts of high temperature resistance alpha-amylase at the temperature of 75-90 DEG C for 10-30 minutes; and then adding the melts of 1-10 parts of beta-carotene, 1-3 parts of octenyl succinic anhydride and 0-30 parts of plant oil dropwise in a uniform speed to the obtained starch milk within 30-90 minutes under the protection of nitrogen, and after the addition, proceeding to shearing emulsification for 30-60 minutes and maintaining the pH value of the system being 8-9. The method uses low-cost raw materials to replace commercial emulsification embedding materials for directly preparing the beta-carotene microcapsules, with simple technology and saved cost.

Description

[0001] [0002] FIELD OF THE INVENTION The present invention relates to the preparation of carotenoids, in particular beta-carotene for coloring [0003] Preparation method of microcapsules. Background technique [0004] Carotenoids (Carotenoids) widely exist in nature, the current commercial carotenoid products mainly include β-carotene, astaxanthin, lycopene and canthaxanthin. These substances are widely used in fields such as food, cosmetics, feed and pharmaceutical industries as nutritional fortifiers and coloring agents. Carotenoids are insoluble in water, have little solubility in oil, and are very sensitive to light, heat and oxygen, so they cannot be used directly. Generally, carotenoid crystals need to be ultra-fine, and protective colloids are used to make microcapsules and other preparations before they can be applied. Carotenoids can significantly increase bioavailability, improve coloring effect and reduce dosage after formulation. [0005] About the report of...

Claims

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Application Information

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IPC IPC(8): C09B67/02C09B61/00
Inventor 仇丹周佳超陈志荣石立芳尹红
Owner ZHEJIANG NEW WEIPU ADDITIVE
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