Type

Journal Article

Authors

J P Kerry
N M O'Brien
M N O'Grady
P Allen
V Stepanyan
J E Hayes

Subjects

Agriculture & Food Science

Topics
bovine meat products lutein muscle lipid shelf life oxidation acid

The effect of lutein, sesamol, ellagic acid and olive leaf extract on lipid oxidation and oxymyoglobin oxidation in bovine and porcine muscle model systems. (2009)

Abstract The effect of lutein (100, 200, 300μg/ml), sesamol (500, 1000, 2000μg/ml), ellagic acid (300, 600, 900μg/ml) and olive leaf extract (100, 200, 300μg/ml) on oxymyoglobin oxidation and lipid oxidation in bovine and porcine muscle model systems (25% M. longissimus thoracis et lumborum homogenates) was examined. Radical scavenging activity, using the DPPH assay, and iron-chelating activities of lutein, sesamol, ellagic acid and olive leaf extract were assessed at concentrations ranging from 200 to 1000ppm. The radical scavenging activity was of the order: ellagic acid>sesamol>olive leaf extract>lutein. None of the natural antioxidants examined exhibited iron chelating activity. Following induced lipid oxidation (FeCl(3)/sodium ascorbate addition), lipid oxidation and oxymyoglobin oxidation were measured after 24h at 4°C. In bovine and porcine muscle model systems, lipid oxidation decreased (P<0.001) following addition of each of the natural antioxidants relative to the control and antioxidant potency followed the order: sesamol>ellagic acid>olive leaf extract>lutein. Ellagic acid and olive leaf extract decreased oxymyoglobin oxidation (P<0.001) while sesamol increased oxymyoglobin oxidation in both systems. The natural antioxidants examined may have applications in the development of nutritional enhanced meat products with enhanced shelf-life characteristics.
Collections Ireland -> Teagasc -> PubMed

Full list of authors on original publication

J P Kerry, N M O'Brien, M N O'Grady, P Allen, V Stepanyan, J E Hayes

Experts in our system

1
J P Kerry
University College Cork
Total Publications: 130
 
2
Nora M O'Brien
University College Cork
Total Publications: 89
 
3
M N O'Grady
University College Cork
Total Publications: 23
 
4
Paul Allen
Teagasc
Total Publications: 85