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維他命Ｅ - PowerPoint PPT Presentation
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維他命Ｃ與維他命Ｅ對細胞膜抗氧化之相乘作用. 活性氧. 維他命Ｃ. 2. H. 1. H. 3. H. 細胞膜. 維他命Ｅ. 2. 維他命Ｅ提供氫離子給產生自由基的細胞膜. 1. 氫氧自由基從細胞膜奪取氫離子給活性氧. 3. 維他命Ｃ提供氫離子給被氧化的維他命Ｅ. 細胞膜過氧化脂質的生成. 氫氧自由基 ‧OH. 氧 O 2. 脂質過氧化自由基 LOO‧. 脂質 LH. 脂質自由基 L‧. 過氧化脂質 LOOH. 脂質 LH.
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維他命Ｃ與維他命Ｅ對細胞膜抗氧化之相乘作用維他命Ｃ與維他命Ｅ對細胞膜抗氧化之相乘作用
活性氧
維他命Ｃ
2
H
1
H
3
H
細胞膜
維他命Ｅ
2.維他命Ｅ提供氫離子給產生自由基的細胞膜
1.氫氧自由基從細胞膜奪取氫離子給活性氧
3.維他命Ｃ提供氫離子給被氧化的維他命Ｅ
