Tauropine and D-Lactate as Metabolic Stress Indicators during Transport and Storage of Live Paua, (New Zealand Abalone) (Haliotis iris) |
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| Authors: | J BALDWIN RMG WELLS M LOW JM RYDER |
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| Affiliation: | Author Baldwin is with the Dept. of Ecology &Evolutionary Biology, Monash Univ., Clayton, Victoria, Australia, 3168.;Authors Wells and Low are with the Dept. of Zoology, Univ. of Auckland, Auckland, New Zealand.;Author Ryder is with the Seafood Research Laboratory, DSIR Crop Research, Dept of Scientific &Industrial Research, Auckland, New Zealand. |
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| Abstract: | Pyruvate reductase end products were evaluated as specific indicators of anaerobic stress in the New Zealand paua (Haliotis iris). The foot and shell adductor muscles contained D-lactate and tauropine dehydrogenases: the latter was isolated for the enzymatic determination of tauropine in muscle extracts. Enforced exercise and prolonged exposure to air led to accumulation of tauropine, and to a lesser extent D-lactate, in the foot and adductor. Exercise decreased the glycogen content of both muscles and adenylate energy change in the adductor. Monitoring tauropine and D-lactate should prove useful for quality control of live abalone during culture, transport and storage. |
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| Keywords: | seafood abalone pyruvate-reductase adductor muscle |
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