摘要
以新疆红枣为原料提取环磷酸腺苷(cyclic adenosine 3’,5’-monophosphate,cAMP),通过响应面法优化微波辅助复配酶法提取cAMP工艺,并建立回归模型;同时研究cAMP提取物对D-半乳糖诱导衰老模型小鼠的游泳耐力的影响。结果表明,最佳提取工艺为复配酶(纤维素酶-半纤维素酶-果胶酶)质量比1∶1∶1、复配酶添加量1.5%(质量分数)、酶解温度31.3℃、酶解时间20 min、微波功率500 W,在此条件下cAMP提取量为560.9μg/g;新疆红枣cAMP提取物能延长小鼠力竭游泳时间,增加小鼠游泳耐力,说明cAMP对小鼠具有很好的抗疲劳作用。新疆红枣作为cAMP的提取原料在食品和医药工业中具有较好的应用前景。
Response surface methodology was used to optimize the microwave-assisted aqueous enzymatic extraction of cyclic adenosine 3',5'-monophosphate(cAMP) from Chinese jujube(Zizyphus jujuba Mill.) grown in Xinjiang.The antifatigue effect of the cAMP extracted was investigated.The optimal extraction conditions was found as follows: enzyme concentration 1.5%(a mixture of cellulase,hemicellulase and pectinase,1:1:1(m/m)),temperature 31.3 ℃,time 20 min and microwave power 500 W.Under these conditions,the yield of cAMP was 560.9 μg/g.The results showed that the cAMP could extend exhaustive swimming time and enhance swimming endurance in mice,suggesting good anti-fatigue effect.Therefore,cAMP holds great promise for its application in the food and pharmaceutical industry.
引文
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