Measurement and correlation of partition coefficients of hydrolytic enzymes for dextran+poly (ethylene glycol) + water aqueous two-phase systems at 20°C

T. Furuya, Y. Iwai, Y. Tanaka, H. Uchida, S. Yamada, Y. Arai

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The partition coefficients of hydrolytic enzymes, α-amylase, β-amylase and glucoamylase for the dextran (DEX)+poly(ethylene glycol) (PEG)+water aqueous two-phase systems with various polymer molecular weights were measured at 20°C. The partition coefficients obtained were correlated by using a mod fied Flory-Huggins equation which was empirically proposed for aqueous systems. The interaction parameters required were determined by fitting the model to the experimental data. The partition coefficients could be correlated with good agreement.

Original languageEnglish
Pages (from-to)115-128
Number of pages14
JournalFluid Phase Equilibria
Volume110
Issue number1-2
DOIs
Publication statusPublished - Sep 1995

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Amylases
binary systems (materials)
dextrans
Dextran
Dextrans
Polyethylene glycols
enzymes
glycols
partitions
ethylene
Enzymes
Glucan 1,4-alpha-Glucosidase
Water
coefficients
water
Polymers
Molecular weight
molecular weight
polymers
interactions

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Measurement and correlation of partition coefficients of hydrolytic enzymes for dextran+poly (ethylene glycol) + water aqueous two-phase systems at 20°C. / Furuya, T.; Iwai, Y.; Tanaka, Y.; Uchida, H.; Yamada, S.; Arai, Y.

In: Fluid Phase Equilibria, Vol. 110, No. 1-2, 09.1995, p. 115-128.

Research output: Contribution to journalArticle

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