【摘要】 存在还原性的生物分手如甲硫氨酸、尿酸和还原性谷胱甘肽时,竹红菌甲素经受单电子还原形成甲素的半醌自由基、在去氧溶液中观察到了甲素半醌负离子自由基的ESR信号.在充氧的溶液中检测到了超氧负离子自由基.还原剂的存在降低了单重态氧的生成并引起了超氧负离子自由基的生成.更多还原

【Abstract】 Hypocrellin A underwent one-electron reduction to form semiquinone radical anion in the presence of reducing biological molecules such as methione, uric acid and reduced glutathione. The ESR signals of Hypocrellin A semiquinone radical anion were observed in the deaerated solution. The superoxide anion radical was detected in the aerated solution. The singlet oxygen production was decreased and superoxide anion radical production was initiated in the presence of reducing agents.更多还原