title: Comparison of ascorbic acid and sodium erythorbate: Effects on the 24h display colour of beef lumbar vertebrae and longissimus lumborum packaged in high-oxygen modified atmospheres.
abstract: Sodium erythorbate and ascorbic acid were compared as a means to stabilize surface colour of bone-in beef steaks in high-oxygen modified atmosphere (80% oxygen and 20% carbon dioxide). Bone-in strip loins (n=8) were fabricated into 1.9-cm thick steaks, of which both the lumbar vertebrae and longissimus lumborum were topically treated with either ascorbic acid or sodium erythorbate (0, 0.05, 0.1, 0.5, 1.0, or 1.5%, wt/wt basis). Colour (L(∗)a(∗)b(∗)) was evaluated before treatment and 24h after packaging (display at 1°C). Sodium erythorbate was as effective as ascorbic acid for inhibiting vertebrae discolouration (P>0.05). Either reducing agent at 0.5, 1.0, or 1.5% improved (P<0.05) vertebrae redness (compared with 0%, 0.05% and 0.1%). No detrimental effects on muscle colour were observed. When selecting antioxidants intended for bone-in beef steaks displayed in high-oxygen packaging, sodium erythorbate may be a cost effective substitute for ascorbic acid.
authors: Department of Animal Science, University of Connecticut, 3636 Horsebarn Hill Road Extension, Storrs, CT 06269-4040, United States.
authors: R A
authors: RA
authors: Mancini
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authors: MC
authors: Hunt
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authors: Seyfert
authors: D H
authors: DH
authors: Kropf
authors: K A
authors: KA
authors: Hachmeister
authors: T J
authors: TJ
authors: Herald
authors: D E
authors: DE
authors: Johnson