Evaluation of Serpa cheese proteolysis by nitrogen content and capillary zone electrophoresis

L.B. Roseiro, M. Garcia-Risco, M. Barbosa, Jennifer Ames, R.A. Wilbey

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22 Citations (Scopus)

Abstract

Proteolysis of Serpa cheese produced traditionally (B) and semi-industrially (C) was evaluated for the first time by determination of nitrogen content and capillary zone electrophoresis (CZE). A citrate dispersion of cheese was fractionated to determine the nitrogen in pH 4.4, trichloroacetic and phosphotungstic acid soluble fractions (pH 4.4-SN, TCA-SN and PTA-SN, respectively). The pH 4.4-SN was significantly higher for B ( P <0.001), while TCA-SN was significantly higher for C ( P <0.001). PTA-SN was also higher for C but at 60 days ripening no significant difference was found between B and C. Degradation of alpha(s1) - and beta-caseins evaluated by CZE was in good agreement with the maturation index (pH 4.4-SN/TN).
Original languageEnglish
Pages (from-to)99-104
Number of pages6
JournalInternational Journal of Dairy Technology
Volume56
Issue number2
Publication statusPublished - May 2003

ASJC Scopus subject areas

  • Food Science
  • Bioengineering

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    Roseiro, L. B., Garcia-Risco, M., Barbosa, M., Ames, J., & Wilbey, R. A. (2003). Evaluation of Serpa cheese proteolysis by nitrogen content and capillary zone electrophoresis. International Journal of Dairy Technology, 56(2), 99-104.