Encapsulation and Stabilization of Oil-Soluble Pigment into a Protein-Carbohydrate Matrix

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  • ONO FUMIO
    Central Research Laboratories Kikkoman Shoyu Co., Ltd.

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  • 糖とたん白質による油溶性色素の被覆安定化
  • トウ ト タンパクシツ ニヨル ユヨウセイ シキソ ノ ヒフク アンテイカ シ
  • 醤油成分による油脂可溶化現象(第10報)

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Abstract

Solubilization technique of oily substances into micellar solution of protein and carbohydrate was applied to encapsulation of oil-soluble pigment, paprika oleoresine or β-carotene. The solubilizates of the pigment in oil into the aqueous solution of 60%(w/w) corn syrup solids, 1% (w/w) polypeptone as nitrogen were solidified at 60°C under the vacum drying. The granules obtained by crushing and sieving the dried material showed a considerably high encapsulation ratio of pigment. Discoloration of the granulated pigment during 20 days storage at 60°C or under the irradiation by a fluorescent lamp was scarcely occurred when the granules contained abodt 12% oil containing paprika or β-carotene. Dispersibility into water of the oil-soluble pigment was also improved through the encapsulation into the protein-carbohydrate matrix.

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