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响应面法优化酶法制备藻蓝蛋白抗氧化肽的实验研究
Authors
吕家森
周云丽
+4 more
周虹
唐志红
焦绪栋
秦松
Publication date
1 January 2012
Publisher
Abstract
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
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Last time updated on 24/06/2021