Effects of tartrate on color stability and myoglobin affinity for oxygen in beef

IF 7.1 1区 农林科学 Q1 Agricultural and Biological Sciences Meat Science Pub Date : 2025-03-07 DOI:10.1016/j.meatsci.2025.109807
Masahiro Waga, Shinsuke Watanabe, Koji Nakade
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引用次数: 0

Abstract

The effects of the affinity of myoglobin for oxygen on meat discoloration were investigated. First, we showed that 10 mmol/L tartrate significantly decreased the deoxygenation rate in vacuum-packed beef, although it did not reduce mitochondrial oxygen consumption activity. Second, the myoglobin affinity was evaluated with or without 1 mg/mL mitochondria and/or 10 mmol/L tartrate. The oxygen concentration that gives 50 % of the deoxygenation ratio was evaluated as myoglobin affinity. The affinity in the “with mitochondria” condition (0.370 ± 0.006 %) was significantly lower than that of “myoglobin” (0.312 ± 0.019 %), “with tartrate” (0.292 ± 0.009 %), and “with mitochondria and tartrate” (0.287 ± 0.022 %). Furthermore, the effect of 10 mmol/L tartrate on the myoglobin oxidation rate in beef was observed at 0.18–4.2 % oxygen. The addition of tartrate inhibited oxidation at lower concentrations but promoted oxidation at higher concentrations, with 1 % being the divergent concentration. Using tartrate, we demonstrated that myoglobin affinity is a determining factor for the oxygen concentrations that promote beef discoloration.
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来源期刊
Meat Science
Meat Science 工程技术-食品科技
CiteScore
12.60
自引率
9.90%
发文量
282
审稿时长
60 days
期刊介绍: The aim of Meat Science is to serve as a suitable platform for the dissemination of interdisciplinary and international knowledge on all factors influencing the properties of meat. While the journal primarily focuses on the flesh of mammals, contributions related to poultry will be considered if they enhance the overall understanding of the relationship between muscle nature and meat quality post mortem. Additionally, papers on large birds (e.g., emus, ostriches) as well as wild-captured mammals and crocodiles will be welcomed.
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