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KMID : 0380020080230060546
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Korean Journal of Biotechnology and Bioengineering
2008 Volume.23 No. 6 p.546 ~ p.550
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Solubility and Storage Stability of Astaxanthin
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Abstract
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Basic characteristics of astaxanthin including solubility and stability were investigated. Astaxanthin showed a very poor solubility in water, but it was highly soluble in organic solvents such as acetone and acetic acid. The solubility of astaxanthin in acidic condition was 10-20 times higher than those in neutral and basic conditions. Astaxanthin was very unstable in acidic condition under UV irradiation and in the presence of oxygen. Also, heating even for a very short time accelerated the degradation of astaxanthin. In conclusion, it is required to enhance the water-solubility and stability of astaxanthin for industrial application in food and cosmetic area.
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KEYWORD
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Astaxanthin, solubility, storage stability
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