Physico-chemical characteristics and lipid oxidative stability of zebra (Equus Burchelli) droëwors made using different levels of sheep fat

Mandela Zikhona, Arnaud Elodie, Hoffman Louwrens Christian. 2021. Physico-chemical characteristics and lipid oxidative stability of zebra (Equus Burchelli) droëwors made using different levels of sheep fat. Foods, 10 (10), n.spéc. Game Meat and Game Meat Products: Safety, Quality and Consumer Perception:2497, 10 p.

Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY

Résumé : The physico-chemical properties (proximate, salt content, water activity (aw), pH) and lipid oxidation of droëwors (dried salted/spiced meat sausages) produced with zebra meat and different sheep fat levels (10, 15, and 20% by weight) measured at day 0 (before drying), day 2 (after drying at 30 °C and 40% relative humidity), and over a 90 day storage (day 17, 32, 47, 62, 77, and 92) under vacuum at 25 °C were investigated. The use of lower fat levels (10 and 15%) in the formulation resulted in higher weight loss during drying and droëwors with higher protein, ash, and salt content and lower aw and pH compared to the droëwors made with 20% fat. The pH increased (p < 0.001) during storage for all the fat levels, while the moisture content and the aw were stable as expected. TBARS values were the highest in droëwors made with 20% of fat after drying (day 2), but droëwors made with 10% of fat reached similar maximal values on day 17. Formulations containing 15% sheep fat displayed the lowest TBARS values after drying and along storage, and thus had the best characteristics in relation to oxidative stability.

Mots-clés Agrovoc : viande de gibier, Equus burchelli, stabilité oxydative, aptitude à la conservation, lipide

Mots-clés libres : Dry sausages, Fat levels, Nitrite free, Game meat, Wild meat, Storage, Proximate, Water activity, TBARS

Classification Agris : L02 - Alimentation animale

Champ stratégique Cirad : CTS 3 (2019-) - Systèmes alimentaires

Agences de financement hors UE : National Research Foundation

Auteurs et affiliations

• Mandela Zikhona, University of Fort Hare (ZAF)
• Arnaud Elodie, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0002-0896-7916 - auteur correspondant
• Hoffman Louwrens Christian, Stellenbosch University (ZAF)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/600472/)

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