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Method for preserving xanthophyll in algal cell

A preservation method and lutein technology, applied in the field of lutein, can solve problems such as increased cost and unsatisfactory, and achieve the effect of simple preservation and improved re-dyeing effect

Inactive Publication Date: 2006-11-29
YAMAHA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is not ideal because additives such as surfactants and antioxidants are necessary, which increases the cost, or because surfactants are included, these additives are mixed in the extract and must be removed.

Method used

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  • Method for preserving xanthophyll in algal cell
  • Method for preserving xanthophyll in algal cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0055] Hereinafter, the present invention will be explained in detail by using examples of the algae of Haematococcus genus. Needless to say, the present invention is by no means limited to this embodiment.

[0056] First, the method for measuring lutein, the method for measuring astaxanthin isomers, and the method for measuring the dry mass of algae are explained.

[0057] (Method for determination of lutein)

[0058] Take a certain amount of sample and put it into a microtube dedicated to the particle stirrer. Zirconium oxide particles are added to the same tube, then acetone is added, and the sample is broken up with a particle mixer. After crushing, the sample is separated into the supernatant and the lower sediment by centrifugal separation, and the supernatant part (ie the acetone part) is recovered. Add acetone to the precipitate and repeat the same operation as above until the precipitate is almost completely white. Pack the recovered acetone components together, dilute to...

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PUM

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Abstract

A method for preserving xanthophyll in algal cells comprises the steps of cultivating algal cells containing xanthophyll and then collecting the algal cells; and drying the collected algal cells so that they have a moisture content of 3 wt% or less. Preferably, drying is performed using spray drying and under drying conditions such that the temperature of air discharged in a spray drier is 125 DEG C or more. In such dry algal cells, xanthophyll can be preserved stably for a long term.

Description

Technical field [0001] The invention relates to a method for preserving lutein, especially lutein in algae containing astaxanthin. In addition, the present invention relates to a method for improving the storage stability of lutein in dry algae containing lutein. Background technique [0002] Lutein (such as astaxanthin, canthaxanthin, zeaxanthin, adonirubin, marigold xanthin, cryptoxanthin, etc.) is a carotenoid that has many uses. For example, it is known that astaxanthin is a kind of red carotenoid and has a strong antioxidant effect. Therefore, it is used as feed for heavy dyeing of fish, food coloring, cosmetics, health food, etc. As a feed containing astaxanthin, for example: a feed produced by treating Phaffia yeast with sodium hydroxide (Patent Document 1); a feed produced by crushing algae, freeze-drying it and grinding it into powder (Patent Literature 2). [0003] Astaxanthin is obtained by chemical synthesis or extracted from shrimps such as krill and sweet shrimp, as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/12C07C403/24
CPCA23K3/005C12P23/00A23K1/1606A23K1/188A23K20/179A23K50/80A23K30/20
Inventor 石仓正治
Owner YAMAHA MOTOR CO LTD