Effect of combined chlorogenic acid and chitosan coating on antioxidant, antimicrobial, and sensory properties of snakehead fish in cold storage

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  • Xiaohuang Cao, Guangdong Ocean University
  • ,
  • Md Nahidul Islam
  • ,
  • Bimal Chitrakar, Jiangnan University
  • ,
  • Zhenhua Duan, Hezhou University
  • ,
  • Wanxiu Xu, Zhejiang Normal University
  • ,
  • Saiyi Zhong, Guangdong Ocean University, Dalian Polytechnic University

Degradation of meat quality has always been a burning issue in fish preservation. To maintain the quality, a novel combination of chlorogenic acid (CGA) and chitosan (CS) coating was applied to snakehead fish fillets. Fish fillets were soaked into 2% chitosan (2CS), 0.2% CGA in 2% chitosan (0.2CGA/2CS), 0.5% CGA in 2% chitosan (0.5CGA/2CS), or 1.0% CGA in 2% chitosan (1.0CGA/2CS) solution; and then, coated samples were vacuum-packaged and stored at 2 ± 0.5°C. pH values, color values, microbial loads, hardness, sensory qualities, and oxidization of lipids and proteins of stored fish fillets were investigated for 5 months. Antimicrobial activity was found to be nonsignificant (p ≤.05) among different coated fish fillets, while color, antioxidant, and pH values were significantly (p ≤.05) different. Lipid oxidation and protein oxidation were found to be inhibited in 2CS-, 0.5CGA/2CS- and 1.0CGA/2CS-coated fish fillet. All CGA/CS coating delayed increase in pH (p ≤.05) and resulted brown color. However, only CS coating resulted in higher sensory scores (p ≤.05) and controlled browning. Considering antioxidant properties and other quality parameters, CGA/CS coating might be applied commercially in fish preservation.

TidsskriftFood Science and Nutrition
Sider (fra-til)973-981
Antal sider9
StatusUdgivet - 2020

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