| 摘要: |
| 为优化碱性蛋白酶酶解藻蓝蛋白制备抗氧化肽的工艺条件, 采用响应面分析法, 以超氧阴离子自由基清除率为响应值, 研究了[E]/[S]、酶解温度和时间对制备抗氧化肽工艺的影响。结果表明, 制备藻蓝蛋白肽的最佳酶解条件为: 温度为44.9℃、时间为6.4 h 和[E]/[S]为3.6%, 此时对超氧阴离子自由基清除率达到75.39%。在该条件下制备的藻蓝蛋白酶解产物(0.5 g/L)还原能力的吸光度为1.03, 并达到稳定。 |
| 关键词: 响应面法 藻蓝蛋白 抗氧化肽 酶法 |
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| 基金项目:国家海洋公益性行业科研专项经费资助(200905021-3); 国家自然科学基金项目(41176144) |
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| Optimization for antioxidant phycocyanin peptide production by enzyme hydrolysis using response surface methodology |
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| Abstract: |
| In order to optimize alcalase hydrolytic process of producing antioxidant peptides from phycocyanin, the effect of [E]/[S], enzymolysis temperature and time on the technology in which superoxide anion radical capturing rates were taken as response values was evaluated by using response surface methodology. The results demonstrated that the optimum hydrolysis conditions for preparing phycocyanin peptides were as follows: enzymolysis temperature 44.9 ℃, time 6.4 h, and [E]/[S] 3.6%. And under this condition, the scavenging capability of phycocyanin peptides on superoxide anion radicals was reached to 75.39% and the reducing power reached a constant value of 1.03 at concentration of 0.5 g/L. |
| Key words: response surface methodology phycocyanin antioxidant peptide enzymatic hydrolysis |
