PARAFAC modeling of dandelion phenolic compound fluorescence relation to antioxidant properties

The phenolic compounds in dandelion were extracted using different ethanol percentage solutions, identified with HPLC-MS, and their scavenging capabilities of DPPH, ABTS OH radicals determined. Then the excitation-emission matrix fluorescence spectroscopy coupled parallel factor analysis (PARAFAC) was conveyed to analyze relationship between phenolics, components scores PARAFAC model antioxidant capacities, based on linear regression method. results showed that relative content chicoric acid, esculetin, caffeic gallic acid monohydrate, eupatilin, acid-3-glucoside, corchorifatty F, luteolin higher than 0.5%, extraction solutions 100% 75% water had a better capacity radicals. Two comparatively sum squares, core consistency values, lower interactions numbers, established equations indicated component capacities ABTS. paper proposed for first time might be treated as useful indication evaluation.