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| Comparative Studies of Enzymatic Hydrolysis of Chicken Embryo Protein by Different Proteases |
| LIANG Qiong，ZHANG Pei-zheng，GAO Wei，SUN He-mei |
| 1. College of Engineering and Technology, Haikou College of Economics, Haikou 570203, China；
2. College of Food Science and Engineering, Yunnan Agricultural University, Kunming 650201, China |
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Abstract The optimal process conditions for hydrolyzing chicken embryo protein by trypsin or bromelain were determined using one-factor-at-a-time combined with orthogonal array design method. Under the optimal process conditions, the degree of hydrolysis of chicken embryo protein by trypsin and bromelain were 45.53% and 38.17%, and the resulting hydrolyates contained 20.15 mg/mL and 22.69 mg/mL soluble protein and 62.55 mg/mL and 50.26 mg/mL polypeptides, respectively. These results demonstrate that bromelain is more suitable to hydrolyze chicken embryo protein than trypsin.
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2011, Vol. 25 
