Thiol oxidation and protein cross-link formation during chill storage of pork patties added essential oil of oregano, rosemary, or garlic

Gema Nieto, Sisse Jongberg, Mogens Larsen Andersen, Leif Horsfelt Skibsted

59 Citationer (Scopus)

Abstract

The effect of two levels (0.05% and 0.4%) of essential oil of rosemary, oregano, or garlic on protein oxidation in pork patties was studied during storage under modified atmosphere (MAP: 70% O2: 20% CO2: 10% N2) or under aerobic conditions (AE) at 4°C. The oxidative stability of the meat proteins was evaluated as loss of thiols for up to 9days of storage, and as formation of myosin cross-links analyzed by SDS-PAGE after 12days of storage. Protein thiols were lost during storage to yield myosin disulfide cross-links. Essential oils of rosemary and oregano were found to retard the loss of thiols otherwise resulting in myosin cross-links. Garlic essential oil, on the contrary, was found to promote protein oxidation, as seen by an extreme loss in thiol groups, and elevated myosin cross-link formation compared to control.

OriginalsprogEngelsk
TidsskriftMeat Science
Vol/bind95
Udgave nummer2
Sider (fra-til)177-184
Antal sider8
ISSN0309-1740
DOI
StatusUdgivet - okt. 2013

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