On the difference in decomposition of taxifolin and luteolin vs. fisetin and quercetin in aqueous media
作者:Romana Sokolová、Šárka Ramešová、Jana Kocábová、Viliam Kolivoška、Ilaria Degano、Emanuela Pitzalis
DOI:10.1007/s00706-016-1737-3
日期:2016.8
AbstractThe decomposition of flavonols quercetin and fisetin, flavone luteolin and flavanone taxifolin was studied in slightly alkaline solution under ambient conditions. The study was based on spectrophotometry and high-pressure liquid chromatography. Products formed by atmospheric oxygen oxidation and hydrolysis were identified by HPLC–DAD and HPLC–ESI-MS/MS. Only small differences in the chemical
摘要在环境条件下,在弱碱性溶液中研究了黄酮醇槲皮素和非瑟酮,黄酮木犀草素和黄烷酮类滑石素的分解。该研究基于分光光度法和高压液相色谱法。HPLC-DAD和HPLC-ESI-MS / MS鉴定了由大气氧氧化和水解形成的产物。黄酮类化合物的化学结构只有很小的差异,导致氧化途径和产物变化极大。黄酮醇的氧化导致苯并呋喃酮衍生物和几个开放结构的形成。相反,未发现苯并呋喃酮衍生物是滑石粉和木犀草素氧化分解的产物。这些化合物被氧化成它们的羟基化衍生物和典型的开放结构。 图形概要