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Effects of the addition of vinegar, weight loss and packaging method on the physicochemical properties and microbiological profile of biltong

Jones Maxine, Arnaud Elodie, Gouws Pieter, Hoffman Louwrens C. 2019. Effects of the addition of vinegar, weight loss and packaging method on the physicochemical properties and microbiological profile of biltong. Meat Science, 156 : pp. 214-221.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY

Abstract : Biltong is an Ready to Eat (RTE) shelf stable salted/dried meat product stored under ambient conditions. The effect of vinegar addition during salting, weight loss during drying and packaging (modified atmosphere and vacuum) on the physicochemical and microbiological properties of beef biltong over a 3 months storage at 25 °C was investigated. Biltong dried to ~50% weight loss had a moisture content of ~50 g/100 g, salt content of 7.49 g/100 g and water activity >0.81 whilst biltong dried to 65% weight loss had a moisture content of 30 g/100 g, salt content of 7.14 g/100 g and water activity <0.78. Packaging method had no effect. Vinegar decreased the pH of biltong to 4.91, delayed the growth of total viable counts and reduced the coliforms count but not the yeasts and moulds. Escherichia coli was below the detection limit of 1 log cfu/g, Salmonella spp. and Listeria monocytogenes were absent and Staphylococcus aureus counts were <1.3 log cfu/g.

Mots-clés Agrovoc : Viande séchée, Viande salée, Traitement des aliments, Vinaigre, Teneur en eau, Levure, Moisissure, Aptitude à la conservation

Mots-clés géographiques Agrovoc : Namibie

Mots-clés libres : Salting, Drying, Ready to eat meat, Shelf stable, Water activity, Yeasts and moulds

Classification Agris : Q02 - Food processing and preservation
Q05 - Food additives

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

Auteurs et affiliations

  • Jones Maxine, Stellenbosch University (ZAF)
  • Arnaud Elodie, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0002-0896-7916
  • Gouws Pieter, Stellenbosch University (ZAF)
  • Hoffman Louwrens C, Stellenbosch University (ZAF) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/593057/)

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