Journal
CYTA-JOURNAL OF FOOD
Volume 13, Issue 1, Pages 124-133Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/19476337.2014.919029
Keywords
modified atmosphere packaging; vacuum packaging; beef steak; storage time
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Funding
- Scientific Research Projects Coordination Unit of Celal Bayar University [2006-119]
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The objective of the present study was to investigate the effects of different packaging methods and storage time on the quality and shelf life extension of beef steaks (M. longissimus dorsi). Steaks were packed under air (control), vacuum, MAP1 (60:40/O-2:CO2) and MAP2 (60:20:20/O-2:CO2:N-2) conditions. Packed steak samples were stored at 4 +/- 1 degrees C for 35 days. Physical, chemical (headspace gas analysis, weight loss, water holding capacity, Warner-Bratzler shear force, instrumental color measurement, pH, thiobarbituric acid reactive substances (TBARS), myoglobin content) and sensory color analyses were performed. It was determined that vacuum packaging reduced the weight losses during the storage. In terms of sensory color evaluation, the best results were observed in vacuum packed samples. TBARS values were increased in all samples during the storage time. In terms of lipid oxidation level, it was defined that vacuum packed samples might provide the longest shelf life. Interaction of packaging method and storage time affected the shear force values significantly (P < 0.001). The interaction of packaging method and storage day affected the L*, a*, b* values of the beef steaks significantly (P < 0.001).
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