Cristin-resultat-ID: 748586
Sist endret: 14. juli 2014, 10:36
Resultat
Vitenskapelig artikkel
2002

On attempts to measure the tenderness of Longissimus dorsi muscles using fluorescence emission spectra

Bidragsytere:
  • Bjørg Egelandsdal
  • Jens-Petter Wold
  • Arve Sponnich
  • Steinar Neegård og
  • Kjell Ivar Hildrum

Tidsskrift

Meat Science
ISSN 0309-1740
e-ISSN 1873-4138
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2002
Volum: 6
Hefte: 2
Sider: 187 - 203

Importkilder

ForskDok-ID: r02020035
Scopus-ID: 2-s2.0-0036133767

Beskrivelse Beskrivelse

Tittel

On attempts to measure the tenderness of Longissimus dorsi muscles using fluorescence emission spectra

Sammendrag

Autofluorescence spectra have been obtained on beef longissimus dorsi muscles (n = 151), and the spectra regressed against Warner-Bratzler (WB) peak values. The spectra obtained depended on the method used, and it is suggested that the difference is related to the use of two different types of Xenon lamps (a pulsed versus a continuous light source) and the inherent kinetic differences in the collection of the fluorochromes' emitted light. Poor to good (R=0.45-0.84) correlations between WB peak values and the emission spectra were obtained. This relationship is established using chemical information originating largely from collagens. Minor differences in predictability were observed using either excitation wavelengths 332 or 380 rim. The emission wavelengths containing the most relevant information about WB peak values were between 360 and 500 nm. Wavelengths around 375 nm, excitation 332 nm, were in particular important and were related to a component in the perimysial tissue, most likely being present in collagen I or III. Excitation at 380 nm revealed the wavelength range 460-480 nm as important presumed due to collagens in the perimysium. An experiment, simulating industrial routines, using 45 samples collected at the slaughterhouse two days post mortem, was carried out. However, for those samples no model was observed between the emission spectra and WB peak values. Only when some samples having very low (

Bidragsytere

Bjørg Egelandsdal

  • Tilknyttet:
    Forfatter
    ved NOFIMA

Jens Petter Wold

Bidragsyterens navn vises på dette resultatet som Jens-Petter Wold
  • Tilknyttet:
    Forfatter
    ved NOFIMA

Arve Sponnich

  • Tilknyttet:
    Forfatter
    ved Andre institusjoner

Steinar Neegård

  • Tilknyttet:
    Forfatter
    ved SINTEF AS

Kjell Ivar Hildrum

  • Tilknyttet:
    Forfatter
    ved NOFIMA
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