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| Response Surface Methodology Applied to Optimize the Extraction Process of Pigment from Sugar Smoked Chicken Skin |
| LU Fenggui1, ZOU Yufeng2, LIU Dengyong1,2,*, ZHANG Jianbo1 |
| 1.National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, College of Food Science and Technology, Bohai University, Jinzhou 121013, China; 2.Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, China |
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Abstract In order to explore the mechanism of color formation in sugar-smoked chicken, it is necessary to extract pigment from sugar-smoked chicken skin. The objective of this study was to optimize process parameters for ultrasonic-assisted extraction of pigment from sugar-smoked chicken skin using one-factor-at-a-time method and response surface methodology (RSM). The absorbance of pigment was investigated with respect to three variables, ethanol concentration, ultrasonic time and solid-to-liquid ratio. The use of 85% ethanol as extraction solvent, a solid-to-liquid ratio of 10:1 (V/m) and ultrasonic treatment for 32 min were found to be the optimal conditions to obtain a higher absorbance value of 3.397, with only 0.38% deviation as compared to the predicted value. Hence, the optimized extraction process was feasible.
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2019, Vol. 33 
