Astaxanthin-containing aqueous composition, cosmetic preparation, and method for suppressing degradation of astaxanthin

A technology of astaxanthin and composition, which is applied in the field of water-based compositions, can solve problems such as difficulty in maintaining stability over time, and achieve the effect of excellent stability over time

Active Publication Date: 2013-04-03
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the other hand, carotenoids including astaxanthin have an unstable structure, so they are decomposed by heat, light, oxygen, etc., and it is difficult to maintain stability over time.

Method used

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  • Astaxanthin-containing aqueous composition, cosmetic preparation, and method for suppressing degradation of astaxanthin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7、 comparative example 1～6

[0127] The following components were dissolved while heating at 70° C. for 1 hour to obtain an aqueous phase composition.

[0128] ·Sucrose Oleate 13g

[0129] · Decaclyceryl monooleate (HLB=12) 25g

[0130] ·Glycerin 500g

[0131] ·Pure water 332g

[0132]

[0133] Separately, the following components were dissolved while heating at 70° C. for 1 hour to obtain an oil phase composition.

[0134] ·Haematococcus extract

[0135] (astaxanthin content 20% by mass) 40g

[0136] ·Lecithin (soybean source) 90g

[0137] The water phase was kept at 70° C., stirred (10000 rpm) with a homogenizer in this state, and the above-mentioned oil phase was added thereto to obtain an emulsion. The obtained emulsion was emulsified under high pressure at a pressure of 200 MPa using Ultimizer HJP-25005 (manufactured by Sugino Machinery Co., Ltd., brand name).

[0138] Thereafter, the emulsion was filtered with a microfilter having an average pore diameter of 1 μm to prepare astaxanthin-cont...

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Abstract

Disclosed are: an aqueous cosmetic preparation which contains at least (A) astaxanthin, (B) 20 [mu]g / L or more of iron and (C) an iron chelating agent; and a method for suppressing degradation of astaxanthin, wherein an aqueous composition containing at least (A) astaxanthin and (B) 20 [mu]g / L or more of iron is made to contain (C) an iron chelating agent.

Description

technical field [0001] The present invention relates to an astaxanthin-containing water-based composition, cosmetics, and a method for inhibiting the decomposition of astaxanthin. Background technique [0002] Astaxanthin is a naturally-derived carotenoid known to have functions such as an antioxidant effect and an anti-inflammatory effect, and is added to foods, cosmetics, pharmaceuticals, and other processed products. As an application example focusing on various functions of astaxanthin, for example, JP 2000-136123 A discloses that astaxanthin is included as an active oxygen scavenger in an external preparation for skin. JP 2002-128651 A discloses that a photoaging inhibitor contains astaxanthin as a component having singlet oxygen scavenging ability. In addition, Japanese Patent Application Laid-Open No. 9143063 discloses a composition containing astaxanthins and medicinal agents. [0003] On the other hand, carotenoids including astaxanthin and the like are decomposed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/35A61K8/19A61K8/365A61K8/55A61K9/107A61K31/122A61K47/02A61K47/10A61K47/12A61K47/18A61K47/24A61P17/00A61Q19/00
CPCA61Q19/00A61K9/08A61K8/35A61K2800/58A61K8/19A61K8/55A61K2800/51A61K9/0014A61K8/362A61K8/44A61K31/122A61K8/345A61P17/00A61K8/365
Inventor 楠田文
Owner FUJIFILM CORP
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