Use of lyophilised and powdered Gentiana lutea root in fresh beef patties stored under different atmospheres

Nurul Aini, Mohd Azman and Gordon, Michael H. and Skowyra, Monika and Segovia, Francisco and Almajano, María Pilar (2015) Use of lyophilised and powdered Gentiana lutea root in fresh beef patties stored under different atmospheres. Journal of the Science of Food and Agriculture, 95 (9). pp. 1804-1811. ISSN 1097-0010. (Published)

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Gentiana lutea root is a medicinal herb that contains many active compounds which contribute to physiological effects, and it has recently attracted much attention as a natural source of antioxidants. The aim of this study was to evaluate the effects on the colour, pH, microbial activities, sensory quality and resistance to lipid oxidation (through the thiobarbituric acid method) during storage of beef patties containing different concentrations of G. lutea. Fresh beef patties were formulated with 0–5 g kg−1 of G. lutea and 0 or 0.5 g kg−1 of ascorbic acid and packed in two different atmospheres, Modified Atmosphere 1 (MAP1) and Modified Atmosphere 2 (MAP2), and stored at 4 ± 1 °C for 10 days. MAP1 contained 20:80 (v/v) O2:CO2 and MAP2 contained 80:20 (v/v) O2:CO2. RESULTS G. lutea extracts possessed antioxidant activity measured by the ferric reducing antioxidant power and the oxygen radical absorbance capacity assays. Beef patties containing 2 g kg−1 of lyophilised G. lutea were stable towards lipid oxidation in both atmospheres (P < 0.05). Beef patties containing a combination of 2 g kg−1 G. lutea and 0.5 g kg−1 ascorbic acid showed significantly reduced changes in colour and in lipid oxidation (P < 0.05). CONCLUSION The results from this study demonstrate the potential of G. lutea as a food ingredient in the design of healthier meat commodities.

Item Type: Article
Uncontrolled Keywords: Gentiana lutea; lipid oxidation; modified atmosphere; antioxidant; beef patties
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Dr. Nurul Aini Mohd Azman
Date Deposited: 30 Jul 2018 08:43
Last Modified: 31 Jul 2018 02:38
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