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Carbon Chain Length of Lipid Oxidation Products Influence Lactate Dehydrogenase and NADH-Dependent Metmyoglobin Reductase Activity.
Zhai, Chaoyu; Peckham, Kiefer; Belk, Keith E; Ramanathan, Ranjith; Nair, Mahesh N.
Afiliación
  • Zhai C; Department of Animal Sciences , Colorado State University , Fort Collins , Colorado 80523 , United States.
  • Peckham K; Department of Animal and Food Sciences , Oklahoma State University , Stillwater , Oklahoma 74078 , United States.
  • Belk KE; Department of Animal Sciences , Colorado State University , Fort Collins , Colorado 80523 , United States.
  • Ramanathan R; Department of Animal and Food Sciences , Oklahoma State University , Stillwater , Oklahoma 74078 , United States.
  • Nair MN; Department of Animal Sciences , Colorado State University , Fort Collins , Colorado 80523 , United States.
J Agric Food Chem ; 67(48): 13327-13332, 2019 Dec 04.
Article en En | MEDLINE | ID: mdl-31715101
The biochemical basis of lower metmyoglobin reducing activity (MRA) in high-oxygen modified atmospheric packaged (HiOx-MAP) beef than those in vacuum and polyvinyl chloride (PVC) packaging is not clear. To explore this, the effects of lipid oxidation products with varying carbon chain length on lactate dehydrogenase (LDH) and NADH-dependent metmyoglobin reductase activity were evaluated. Surface color, MRA, and lipid oxidation of beef longissimus lumborum steaks (n = 10) were measured during 6-day display. Further, two enzymes, LDH and NADH-dependent metmyoglobin reductase (n = 5), critical for MRA were incubated with or without (control) lipid oxidation products of varying carbon chain length: malondialdehyde (3-carbon), hexenal (6-carbon), and 4-hydroxynonenal (9-carbon). Steaks in HiOx-MAP had greater (P < 0.05) redness than vacuum and PVC, but had lower (P < 0.05) MRA and greater (P < 0.05) lipid oxidation on day 6. LDH and NADH-dependent metmyoglobin reductase activities were differentially influenced by lipid oxidation products (P < 0.05). The results indicate that the difference in reactivity of various lipid oxidation products on LDH (HNE > MDA = hexenal) and NADH-dependent metmyoglobin reductase (HNE = MDA > hexenal) activity could be responsible for lower MRA in HiOx-MAP.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carbono / Carne Roja / L-Lactato Deshidrogenasa / Lípidos / NADH NADPH Oxidorreductasas Límite: Animals Idioma: En Revista: J Agric Food Chem Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carbono / Carne Roja / L-Lactato Deshidrogenasa / Lípidos / NADH NADPH Oxidorreductasas Límite: Animals Idioma: En Revista: J Agric Food Chem Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos