Effects of ethanolic extract from onion skin on the quality characteristics of beef patties during refrigerated storage

• Published in: Ciência e tecnologia de alimentos 2022, Vol.42
• Main Authors: WANG, Cuntang, AN, Xuanzhe, GAO, Zengming, LI, Ziyu, TIAN, Shengxin, LU, Yueyi
• Format: Article
• Language: English
• Subjects: FOOD SCIENCE & TECHNOLOGY
• ISSN: 0101-2061; 1678-457X; 1678-457X
• DOI: 10.1590/fst.118121

Abstract In this study, the effects of ethanolic extract from onion skin (EEOS) on the storage quality of refrigerated beef patties were studied. EEOS concentrations of 0.00%, 0.01%, 0.05%, and 0.10% were added to beef patties. These beef patties were stored at 4 °C for 12 days and compared with 0.05 VC treatment group. At the end of storage, compared to control, 0.1% EEOS effectively reduced the contents of metmyoglobin (MetMb) (P < 0.05) and thiobarbituric acid reactants (TBARS) (P < 0.05) in beef patties by 30.89% and 44.72%, respectively. On day 12, the carbonyl contents in 0.1% EEOS treatment increased only 3.3 times, lower than control and VC treatment (4.5 and 4.1 times). Microbial contamination was significantly inhibited (P < 0.05). The antioxidant and antibacterial effects of EEOS were the main reasons for the improvement of pH and a* stability of beef patties. However, the addition of EEOS had no significant effect on cooking loss and texture properties except hardness and springiness. Overall, 0.1% EEOS had a positive effect on the sensory characteristics and storage quality of beef patties and could prolong the storage life of beef patties to 9 days. This showed that EEOS as a natural additive has great potential for beef storage and preservation.