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Effect of gelatin nano-coating containing Gardenia pigment on the preservation of pork slices
Yong Liu,Zi-Hao Liu,Chang-Qi Luo,Chun-Tao Xiao,Wen-Yu Zhou,Wen-Jin Xie 한국식품과학회 2022 Food Science and Biotechnology Vol.31 No.4
The nano-coating composed of gelatin and Gardenia pigment (GP) was successfully prepared and showed strong antioxidant activity. The average particle sizes of the nano-coating containing 0.1% and 0.3% GP were 269.58 and 394.13 nm, respectively. The pork slices uncoated and coated with the nano-coating were preserved at 4 C for 15 days. The pork slices’ pH, total volatile basic nitrogen (TVB-N), total viable counts (TVC), water-bind- ing capacity (WHC), and thiobarbituric acid reactive sub- stances (TBARS) were measured to assess the preservation effect of the nano-coating. The results showed that the pork coated with the nano-coating had lower pH, TVC, TVB-N, TBARS, and higher WHC, significantly different (p \ 0.05) than the uncoated pork. It is suggested that the proposed nano-coating can be used to effectively improve the pork’s quality and shelf life during refrigeration storage.