Preservative potential of <i>Tinospora cordifolia</i>, a novel natural ingredient for improved lipid oxidative stability and storage quality of chevon sausages

Abstract

Purpose The purpose of this study was to assess the preservative potential of Tinospora cordifolia as a novel natural preservative in muscle foods. Design/methodology/approach Chevon sausages were used as a model system and were prepared by incorporating different levels of T. cordifolia , namely, T1 (0.25 per cent), T2 (0.50 per cent) and T3 (0.75 per cent), and assessed for lipid oxidative stability and storage quality under refrigerated (4 ± 10°C) conditions. Findings Lipid oxidative stability showed a significant improvement as the products incorporated with T. cordifolia exhibited significantly ( p = 0.001) lower thiobarbituric acid reacting substances (mg malonaldehyde/kg) in comparison to control. A significant improvement was also observed in the microbial stability as T. cordifolia -incorporated products showed significantly lower values for total plate count (log cfu/g, p = 0.001), psychrophilic count (log cfu/g, p = 0.003), yeast and mould count (log cfu/g, p = 0.02) and free fatty acid (percentage of oleic acid, p = 0.01). Significantly higher scores were observed for various sensory parameters of the treated products during storage. Originality/value Tinospora cordifolia successfully improved the lipid oxidative and microbial stability of the model meat product and may be commercially exploited as a novel preservative in muscle foods.