Thermal inactivation of actinidin as affected by meat matrix.

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  • Author(s): Zhu X;Zhu X; Kaur L; Kaur L; Boland M; Boland M
  • Source:
    Meat science [Meat Sci] 2018 Nov; Vol. 145, pp. 238-244. Date of Electronic Publication: 2018 Jun 25.
  • Publication Type:
    Journal Article
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Elsevier Country of Publication: England NLM ID: 101160862 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-4138 (Electronic) Linking ISSN: 03091740 NLM ISO Abbreviation: Meat Sci Subsets: MEDLINE
    • Publication Information:
      Publication: <200?>- : Oxford : Elsevier
      Original Publication: Barking, Essex, Eng., Applied Science Publishers
    • Subject Terms:
      Hot Temperature* ; Protein Denaturation* ; Red Meat*; Actinidia/*chemistry ; Cysteine Endopeptidases/*metabolism ; Food Handling/*methods; Animals ; Cattle ; Fruit/chemistry ; Humans ; Kinetics ; Stress, Mechanical
    • Abstract:
      Actinidin from kiwifruit can tenderise meat and add value to low-value meat cuts. However, as with other proteases, over-tenderisation of meat will occur if the reaction of actinidin is not controlled. We describe a process to control the enzyme activity by heat denaturation after the desired degree of meat tenderisation has been achieved. The thermal inactivation kinetics of actinidin in both fresh (KE) and commercial (CEE) green kiwifruit enzyme extract, were studied, with enzyme alone and with enzyme combined with homogenised meat. Both KE and CEE were inactivated at moderate sous vide temperatures (60 and 65 °C) in <5 min. However, the inactivation times increased considerably (up to 24 h at 60 and 65 °C) when these extracts were mixed with homogenised meat. The thermal inactivation kinetics in meat homogenates were used as a guide to optimise processing parameters for actinidin application to beef steaks, which will be described in a companion paper.
      (Copyright © 2018 Elsevier Ltd. All rights reserved.)
    • Contributed Indexing:
      Keywords: Actinidin; Brisket; Enzyme application; Meat; Sous vide; Thermal inactivation kinetics
    • Accession Number:
      EC 3.4.22.- (Cysteine Endopeptidases)
      EC 3.4.22.14 (actinidain)
    • Publication Date:
      Date Created: 20180709 Date Completed: 20181121 Latest Revision: 20181121
    • Publication Date:
      20240829
    • Accession Number:
      10.1016/j.meatsci.2018.06.027
    • Accession Number:
      29982078