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Effect of electrical stimulation on the activity of muscle exoproteases during beef ageing

Göransson, Anders LU ; Flores, M; Josel, A; Ferrer, JM; Trelis, MA and Toldra, F (2002) In Food Science and Technology International 8(5). p.285-293
Abstract
Electrical stimulation was applied to bull carcasses at a low voltage (80 V, 15 Hz, 30 s). The pH decline, tenderness, myofibrillar protein degradation, and exoprotease activities were studied in semimembranosus and longissimus dorsi muscles during the ageing process. Electrical stimulation was found to be beneficial for tenderness in longissimus dorsi muscle as determined by shear force and confirmed by the earlier appearance of the 30-kDa band in the electrically stimulated muscles. The acceleration of the glycolytic process after electrical stimulation affected exoprotease activities, in turn induced the activation of dipeptidyl peptidases I and II and the inhibition of methionyl, leucyl and pyroglutamyl aminopeptidases; however... (More)
Electrical stimulation was applied to bull carcasses at a low voltage (80 V, 15 Hz, 30 s). The pH decline, tenderness, myofibrillar protein degradation, and exoprotease activities were studied in semimembranosus and longissimus dorsi muscles during the ageing process. Electrical stimulation was found to be beneficial for tenderness in longissimus dorsi muscle as determined by shear force and confirmed by the earlier appearance of the 30-kDa band in the electrically stimulated muscles. The acceleration of the glycolytic process after electrical stimulation affected exoprotease activities, in turn induced the activation of dipeptidyl peptidases I and II and the inhibition of methionyl, leucyl and pyroglutamyl aminopeptidases; however electrical stimulation did not influence alanyl aminopeptidase and arginyl aminopeptidase. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
dipeptidylpeptidase, electrical stimulation, exoprotease, aminopeptidase
in
Food Science and Technology International
volume
8
issue
5
pages
285 - 293
publisher
SAGE Publications Inc.
external identifiers
  • wos:000181048200003
  • scopus:0036826189
ISSN
1532-1738
DOI
10.1177/1082013202008005894
language
English
LU publication?
yes
id
991c1944-fe62-41d8-a3d8-7f214a2c2043 (old id 318256)
date added to LUP
2007-08-20 16:47:56
date last changed
2017-01-01 05:17:52
@article{991c1944-fe62-41d8-a3d8-7f214a2c2043,
  abstract     = {Electrical stimulation was applied to bull carcasses at a low voltage (80 V, 15 Hz, 30 s). The pH decline, tenderness, myofibrillar protein degradation, and exoprotease activities were studied in semimembranosus and longissimus dorsi muscles during the ageing process. Electrical stimulation was found to be beneficial for tenderness in longissimus dorsi muscle as determined by shear force and confirmed by the earlier appearance of the 30-kDa band in the electrically stimulated muscles. The acceleration of the glycolytic process after electrical stimulation affected exoprotease activities, in turn induced the activation of dipeptidyl peptidases I and II and the inhibition of methionyl, leucyl and pyroglutamyl aminopeptidases; however electrical stimulation did not influence alanyl aminopeptidase and arginyl aminopeptidase.},
  author       = {Göransson, Anders and Flores, M and Josel, A and Ferrer, JM and Trelis, MA and Toldra, F},
  issn         = {1532-1738},
  keyword      = {dipeptidylpeptidase,electrical stimulation,exoprotease,aminopeptidase},
  language     = {eng},
  number       = {5},
  pages        = {285--293},
  publisher    = {SAGE Publications Inc.},
  series       = {Food Science and Technology International},
  title        = {Effect of electrical stimulation on the activity of muscle exoproteases during beef ageing},
  url          = {http://dx.doi.org/10.1177/1082013202008005894},
  volume       = {8},
  year         = {2002},
}