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Coating effects of tea polyphenol and rosemary extract combined with chitosan on the storage quality of large yellow croaker (Pseudosciaena crocea) |
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| Authors: | Tingting Li Wenzhong HuJianrong Li Xuguang ZhangJunli Zhu Xuepeng Li |
| Affiliation: | a College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, China b College of Life Science, Dalian Nationalities University, Dalian 116600, China c Bohai University, Jinzhou 121013, China |
| Abstract: | The coating effects of tea polyphenol (TP) and rosemary extract (R) combined with chitosan (Ch) respectively on the quality of large yellow croaker (Pseudosciaena crocea) during refrigerated storage at (4 ± 1 °C) were evaluated. A solution of TP (0.2%, w/v) and R (0.2%, w/v) was used for dip pretreatment, and Ch (1.5%, w/v) was used for the coating. Microbiological (total viable count), physicochemical (pH, TVB-N, K value, PV, TBARS), and sensory attributes were periodically assessed over 20 days. The results indicated that the two dip pretreatments combined with chitosan coating could more effectively maintain the good quality and could extend the shelf life by 8-10 days compared with the control group during the refrigerated storage. |
| Keywords: | Large yellow croaker Tea polyphenol Rosemary extract Chitosan Coating Shelf life |
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