Published 2008

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Publication details

Journal : Lebensmittel-Wissenschaft + Technologie , vol. 41 , p. 93–100–8 , 2008

Publisher : Academic Press

International Standard Numbers :
Printed : 0023-6438
Electronic : 1096-1127

Publication type : Academic article

Contributors : Mielnik, Maria bogumila; Sem, Signe; Egelandsdal, Bjørg; Skrede, Grete

Issue : 1

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Herb decoctions - the aqueous extract of rosemary; sage and thyme, left as by-product after steam distillation of essential oils, were investigated as a source of antioxidants in marinades for turkey thigh meat. Lipid oxidation after marinating, cooking and chill storage (warmed over flavour, WOF) was assessed by thiobarbituric acid-reactive substances (TBARS), GC-MS and sensory judgement on marinated and untreated meat. Results showed that marinating with herb decoctions, which exerted antioxidant activity (free radical scavenging), was an effective means of retarding lipid oxidation in raw and cooked meat. Meat from the rosemary marinade had the lowest TBARS values and volatile levels, while the control samples showed the highest values throughout the marinating, cooking and storage period. Oxidative changes in meat marinated with thyme and sage were significantly more advanced than in meat marinated with rosemary decoction. The partial least squares regression (PLS-R) showed that control samples were strongly related to the oxidation variables (volatiles, TBARS, rancidity) while the marinated meat had high scores for spicy and acidic odour and flavour. Results indicated that antioxidants contained in herb decoction, could be exploited in marinades to prevent rancidity in stored, heat-treated turkey meat products. (c) 2007 Swiss Society of Food Science and Technology. Published by Elsevier Ltd. All rights reserved.