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首页> 外文期刊>Applied Magnetic Resonance >EPR Technology Spectroscopic Investigation of Generation of Reactive Oxygen Species Free Radicals in Laccase-Activated Jute Fiber
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EPR Technology Spectroscopic Investigation of Generation of Reactive Oxygen Species Free Radicals in Laccase-Activated Jute Fiber

机译:EPR技术光谱学研究漆酶激活的黄麻纤维中活性氧自由基的产生

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摘要

Lignins in jute fibers can be activated by laccase to generate reactive oxygen species (ROS) free radicals for subsequent use in radical graft polymerization. The effect of incubation conditions on the generation of ROS free radicals when jute powders were incubated with laccase was investigated through spintrapping technique to detect the spin adduct of N-tert-butyl-α-phenylnitrone and ROS free radical using electron paramagnetic resonance spectroscopy. Results revealed that the highest concentrations of ROS free radicals were generated when jute was incubated with laccase (0.54 U/mL) and copper ions (10 mM) in solution at pH 3.5 and a temperature of 60 ℃ for 1 h.
机译:黄麻纤维中的木质素可以被漆酶活化,生成活性氧(ROS)自由基,随后用于自由基接枝聚合。通过自旋捕集技术研究了黄麻粉与漆酶一起孵育时温育条件对ROS自由基产生的影响,并利用电子顺磁共振光谱法检测了N-叔丁基-α-苯基硝酮和ROS自由基的自旋加合物。结果表明,将黄麻与漆酶(0.54 U / mL)和铜离子(10 mM)在pH 3.5和温度60℃的溶液中孵育1 h时,产生的ROS自由基的浓度最高。

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