食品工业科技2018，Vol.39Issue(7)：259-262,314,5.DOI:10.13386/j.issn1002-0306.2018.07.046
山奈酚-铜配合物的合成、表征及其抗氧化活性的研究
Synthesis, characterization and antioxidant activity of kaempferol-copper (Ⅱ) complex
摘要
Abstract
Kaempferol-copper (Ⅱ) complex (kaempferol-Cu) was synthesized with kaempferol and CuCl2 · 2H2 O,and its chemical properties were characterized by UV spectroscopy,infrared spectroscopy,1H-NMR and differential thermal analysis.The free radical activity of the complex was evaluated by DPPH method.The result showed that the UV-visible,Infra -red absorption spectra of the complex both produced a significant bathochromic shift.The 1H NMR data shows the 3-OH groups was not presented in the complex,and the proton signals of the complex shifted to lower frequencies relative to that of the free kaempferol.The differential thermal-thermal analysis confirming that the stoichiometric ratio for the complexation of Cu (Ⅱ) and kaempferol was 1:1,and the complex contains three coordinated water molecules.In the range of experimental concentration(1.0～3.5 mol/L),the IC50 of DPPH free radical of the kaempferol and complex was 1.63 × 10-4,1.51 ×10-4 mol/L respectively.The synthesized complex was coordinated with a Cu (Ⅱ) ion via the 3-OH and 4-oxo groups,kaempferol-Cu exhibited more potent antioxidant effect than kaempferol.关键词
山奈酚/配合物/抗氧化/1,1-二苯基-2-三硝基苯肼Key words
kaempferol/complex/antioxidation/DPPH分类
轻工纺织引用本文复制引用
臧永军,陈乃富,陈存武,陈乃东,韩邦兴..山奈酚-铜配合物的合成、表征及其抗氧化活性的研究[J].食品工业科技,2018,39(7):259-262,314,5.基金项目
安徽省教育厅一般项目(KJ103762015B16). （KJ103762015B16）
