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Extension of the Pre‐rigor Period in Ischemic White Muscle from Yellow‐eye Mullet Aldrichetta forsteri ) and New Zealand Snapper ( Pagrus auratus ) as Affected by Hyperbaric Oxygen Treatment
Author(s) -
Black S. E.,
Jerrett A. R.,
Forster M. E.
Publication year - 2004
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.2004.tb06331.x
Subject(s) - pagrus , mullet , fishery , biology , zoology , chemistry , fish <actinopterygii>
Chemical anesthesia (AQUI‐STM Plus) was used to harvest tank‐rested yellow‐eye mullet ( Aldrichetta forsteri ) and snapper ( Pagrus auratus ) in a “rested” state. Fillets were stored at half the acclimated temperature under hyperbaric, hyperoxic conditions and compared with fillets stored under normobaric, hyperoxic conditions. Postmortem (PM) changes in white muscle (WM) cut‐surface pH and key metabolites (lactate, adenosine triphosphate [ATP], and inorganic phosphate [P i ]) were measured. Hyperbaric, hyperoxic storage extended the pre‐rigor period in the rested WM by delaying PM changes. Prolongation of pre‐rigor was greatest in rested snapper WM. This was attributed to an extended period of aerobic metabolism in PM rested WM.