Journal of Dairy Science
Volume 90, Issue 10 , Pages 4499-4512 , October 2007

Effect of Cutting Time, Temperature, and Calcium on Curd Moisture, Whey Fat Losses, and Curd Yield by Response Surface Methodology

  • C.C. Fagan

      Affiliations

    • Biosystems Engineering, UCD School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Dublin 4, Ireland
    • Corresponding Author InformationCorresponding author.
  • ,
  • M. Castillo

      Affiliations

    • Department of Biosystems and Agricultural Engineering, 128C. E. Barnhart Building, Lexington, KY 40546-0276
  • ,
  • F.A. Payne

      Affiliations

    • Department of Biosystems and Agricultural Engineering, 128C. E. Barnhart Building, Lexington, KY 40546-0276
  • ,
  • C.P. O’Donnell

      Affiliations

    • Biosystems Engineering, UCD School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Dublin 4, Ireland
  • ,
  • D.J. O’Callaghan

      Affiliations

    • Moorepark Food Research Centre, Teagasc, Fermoy, Co. Cork, Ireland

Received 1 May 2007 ,Accepted 19 June 2007.

  • Image Result

    Response surface plots for the effect of independent variables CaCl2 addition level, temperature, and cutting time on total whey fat losses (a, b, c), curd moisture content at 85min after cutting (d,

    Response surface plots for the effect of independent variables CaCl2 addition level, temperature, and cutting time on total whey fat losses (a, b, c), curd moisture content at 85min after cutting (d, e, f), and curd yield on a wet basis (g, h, i).

  • Image Result
    Response surface plots for the effect of independent variables CaCl2 addition level, temperature, and cutting time on curd yield on a dry basis (a, b, c) and curd fat retention (d, e, f).

    Response surface plots for the effect of independent variables CaCl2 addition level, temperature, and cutting time on curd yield on a dry basis (a, b, c) and curd fat retention (d, e, f).

  • Image Result
    Response surface plots for the effect of independent variables CaCl2 addition level, temperature, and cutting time on optical parameters derived from the large field of view light backscatter sensor:

    Response surface plots for the effect of independent variables CaCl2 addition level, temperature, and cutting time on optical parameters derived from the large field of view light backscatter sensor: tmax (a), t2max (b), t2min (c) and ΔRsyn (d, e, f), where tmax = time to the first maximum of R′; t2max = time to the first maximum of R″; t2min = time to the first minimum of R″; and ΔRsyn = percentage decrease in R from ts(o) to ts(85).

PII: S0022-0302(07)71914-8

doi: 10.3168/jds.2007-0329

Journal of Dairy Science
Volume 90, Issue 10 , Pages 4499-4512 , October 2007