摘要
进行了脉冲强光对多酚氧化酶的钝化实验研究,选用光照强度、闪照次数、酶液厚度作为影响因素,使用响应面法优化得出最佳工艺参数。实验结果表明,酶液厚度和闪照次数对钝化效果影响最显著。最佳工艺参数为:光照强度为0.89J·cm-2,酶液厚度1.56mm,闪照次数149。在此条件下相对酶活达38.2%。
Pulsed light （PL） for inactivating polyphenoloxidase （PPQ） was studied.The Influence factors were light influence,number of pulsed and the liquid thickness.The results showed that the activity depletion was strongly dependent on the evaluated factors, mainly number of pulsed and the conditions were light intensity 0.89J· cm-2, the liquid thickness 1.56mm, conditions,inactivation values for PPO achieved 38.2%. quid thickness. The optimal inaction number of pulsed 149. Under these
出处
《食品工业科技》
CAS
CSCD
北大核心
2012年第6期159-162,共4页
Science and Technology of Food Industry
基金
中央高校基本科研业务费专项资金(DL10BB23)
东北林业大学青年科研基金(09031)
关键词
脉冲强光
多酚氧化酶
钝化
果汁
pulsed light
polyphenoloxidase
inactivating
juice
