Abstract:
:This paper analyses the presence of and changes in free amino acids and biogenic amines in red and white muscle of bigeye tuna during storage in controlled atmospheres with 2 gas mixes containing different concentrations of CO(2) and O(2). Levels of amines were generally higher in white than in red muscle, with the exception of putrescine and spermidine. Levels of biogenic amines increased (p<0.05) throughout storage, commencing later in red than in white muscle. A correlation between the amino acid histidine and the biogenic amine histamine was observed, but only in white muscle. Only in the case of tryptophan did white and red muscle differ (p<0.05) in terms of essential free amino acid content. They also differed in anserine content. Concentrations of the non-essential FAAs glutamic acid, glycine and alanine were higher in red than in white muscle. The effectiveness of the atmospheres was reflected in the evolution of both biogenic amines and FAAs. Gas mix 1, containing a higher concentration of CO(2), was the more effective.
journal_name
Amino Acidsjournal_title
Amino acidsauthors
Ruiz-Capillas C,Moral Adoi
10.1007/s00726-003-0054-4subject
Has Abstractpub_date
2004-03-01 00:00:00pages
125-32issue
2eissn
0939-4451issn
1438-2199journal_volume
26pub_type
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