Re: about pH value in fresh tuna loins

From: howgate (phowgate@clara.co.uk)
Date: Fri Feb 06 2004 - 10:38:35 PST

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    Dear Giuseppe

    The paper from AZTI, Bizkaia, Spain, Pérez-Villarreal, B. & Pozo, R., 1990,
    Chemical composition and ice spoilage of albacore (Thunnus alalunga),
    Journal of Food Science, 55, 678-682, has the statement: 'The postmortem pH
    of white muscle of albacore was as low as 5.90 +/- 0.12.'.

    Packaging of fish such as cod in carbon dioxide results in a slight lowering
    pf pH, but I do not consider it will have any effect on pH in the case of
    tuna with a pH found by the Spanish workers.

    Peter Howgate

    ----- Original Message -----
    From: "Dott. Arcangeli - IZS Adria" <garcangeli@izsvenezie.it>
    To: <seafood@ucdavis.edu>
    Sent: Wednesday, February 04, 2004 7:32 AM
    Subject: about pH value in fresh tuna loins

    > Dear members,
    >
    > I need to know the pH value in fresh tuna loins, in particular
    > about Tunnus albacares.
    > Can vacuum packaging let down the pH value?
    >
    > thank you in advance!
    >
    > best regards G. Arcangeli
    >
    > ---------------------------------------------------
    >
    > Arcangeli dr. Giuseppe
    > Istituto Zooprofilattico Sperimentale
    > delle Venezie
    > via L. da Vinci, 39 - 45011 - Adria (Ro) - Italy
    > tel +39.0426.21841 fax +39.0426.901411
    > e-mail garcangeli@izsvenezie.it
    >
    >
    >
    >



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