Entrapment of Water Soluble Material into Biodegradable Microcapsule Prepared by Solvent Evaporation.

史朗, 清山; 弘一郎, 塩盛; 恵宣, 河野; 泰雄, 幡手

doi:10.1252/kakoronbunshu.24.791

Cited by 9 publications

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References 5 publications

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“…With addition of the surfactant, soybean protein was immobilized in the microcapsules, but the immobilization efficiency was constant at 60%. We previously reported that the emulsion was destabilized by heating before the formation of the microcapsule membrane and that the leakage of core material occurred during the early stage of microcapsulation …”

Section: Resultsmentioning

confidence: 99%

“…We previously reported that the emulsion was destabilized by heating before the formation of the microcapsule membrane and that the leakage of core material occurred during the early stage of microcapsulation. 18 From this result, soybean protein that was not immobilized in the microcapsules leaked out into the aqueous phase before the formation of the microcapsule membrane. On the other hand, the adsorption ratio increased with increasing surfactant concentration, despite the constant immobilization efficiency.…”

Section: Effects Of Surfactant Concentration In the Organic Phase On mentioning

confidence: 95%

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Immobilization of Proteins into Microcapsules and Their Adsorption Properties with Respect to Precious-Metal Ions

Kiyoyama

Maruyama

Kamiya

et al. 2008

Ind. Eng. Chem. Res.

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We report on protein immobilization in a microcapsule and its adsorption performance with respect to preciousmetal ions. Proteins including lysozyme, bovine serum albumin, chicken egg albumin, and soybean protein were immobilized by a microencapsulation method, and their adsorption properties with respect to ions of both precious metals (gold, platinum, and palladium) and base metals (zinc and copper) were investigated under various preparation conditions. Immobilized proteins could selectively adsorb precious-metal ions over base-metal ions. High immobilization efficiencies were obtained using lysozyme and soybean protein. The immobilization efficiency of the proteins was controlled by the surfactant concentration in the organic phase, the protein concentration, and the outer-aqueous-phase composition. We succeeded in immobilizing over 90% of the protein in the protein dose by optimizing the preparation conditions. Furthermore, the preciousmetal ions adsorbed by the immobilized proteins were completely recovered with thiourea. No leakage of proteins was observed after the adsorption and desorption experiments. These results indicate that the microcapsules immobilizing proteins prepared in the present study can be used as reusable precious-metalselective absorbents.

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Section: Resultsmentioning

confidence: 99%

Section: Effects Of Surfactant Concentration In the Organic Phase On mentioning

confidence: 95%

Immobilization of Proteins into Microcapsules and Their Adsorption Properties with Respect to Precious-Metal Ions

Kiyoyama

Maruyama

Kamiya

et al. 2008

Ind. Eng. Chem. Res.

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1999

Journal of Microencapsulation

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Characteristics of Biodegradable Microcapsules by Solvent Evaporation in (W/O/W) Emulsion System.

Kawano

Shiomori

Kiyoyama

et al. 2001

J. Chem. Eng. Japan

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Entrapment of Water Soluble Material into Biodegradable Microcapsule Prepared by Solvent Evaporation.

Cited by 9 publications

References 5 publications

Immobilization of Proteins into Microcapsules and Their Adsorption Properties with Respect to Precious-Metal Ions

Immobilization of Proteins into Microcapsules and Their Adsorption Properties with Respect to Precious-Metal Ions

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Characteristics of Biodegradable Microcapsules by Solvent Evaporation in (W/O/W) Emulsion System.

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