Microstructure of Mixed Gelatin‐Egg White Gels: Impact on Rheology and Application to Microparticulation

Research output: Contribution to journalReview article

18 Citations (Scopus)

Abstract

The microstructure of mixed gelatin‐egg white gels was examined by using both light and electron microscopy. Interpenetrating polymer network morphology was observed in mixed gels that were macroscopically single‐phase systems. For two‐phase gels, phase volumes were determined by optical image analysis and used to predict the composite shear modulus. Rheological properties were related to observable changes in the gel microstructure. For systems containing 5.6% egg white protein and greater than 5% gelatin, the dispersed egg white phase formed capsules of roughly 1–2 μm in diameter, with a dense outer coat and a less dense interior containing voids. From this, a method for the microparticulation of proteins based on aqueous phase partitioning was developed.

Original languageEnglish (US)
Pages (from-to)283-287
Number of pages5
JournalBiotechnology progress
Volume7
Issue number3
DOIs
StatePublished - Jan 1 1991

Fingerprint

Rheology
Gels
Egg Proteins
Egg White
Gelatin
Capsules
Electron Microscopy
Polymers
Light
Proteins

All Science Journal Classification (ASJC) codes

  • Biotechnology

Cite this

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abstract = "The microstructure of mixed gelatin‐egg white gels was examined by using both light and electron microscopy. Interpenetrating polymer network morphology was observed in mixed gels that were macroscopically single‐phase systems. For two‐phase gels, phase volumes were determined by optical image analysis and used to predict the composite shear modulus. Rheological properties were related to observable changes in the gel microstructure. For systems containing 5.6{\%} egg white protein and greater than 5{\%} gelatin, the dispersed egg white phase formed capsules of roughly 1–2 μm in diameter, with a dense outer coat and a less dense interior containing voids. From this, a method for the microparticulation of proteins based on aqueous phase partitioning was developed.",
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Microstructure of Mixed Gelatin‐Egg White Gels : Impact on Rheology and Application to Microparticulation. / Ziegler, Gregory Ray.

In: Biotechnology progress, Vol. 7, No. 3, 01.01.1991, p. 283-287.

Research output: Contribution to journalReview article

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T1 - Microstructure of Mixed Gelatin‐Egg White Gels

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AB - The microstructure of mixed gelatin‐egg white gels was examined by using both light and electron microscopy. Interpenetrating polymer network morphology was observed in mixed gels that were macroscopically single‐phase systems. For two‐phase gels, phase volumes were determined by optical image analysis and used to predict the composite shear modulus. Rheological properties were related to observable changes in the gel microstructure. For systems containing 5.6% egg white protein and greater than 5% gelatin, the dispersed egg white phase formed capsules of roughly 1–2 μm in diameter, with a dense outer coat and a less dense interior containing voids. From this, a method for the microparticulation of proteins based on aqueous phase partitioning was developed.

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