Identification of 3-hydroxyoctyl β-d-glucoside and absolute configuration of free and bound octane-1,3-diol in apple fruit
作者:Wilfried Schwab、Gerhard Scheller、Doris Gerlach、Peter Schreier
DOI:10.1016/0031-9422(89)85029-0
日期:——
neutralized apple juice, cv. Jonathan, by LC separation on Amberlite XAD resin using ethyl acetate caution, 3-hydroxyoctyl β d -glucoside was identified by HRGC, HRGC-MS and HRGC-FTIR after per- O -methylation. Chiral evaluation of free and glucosidically bound octane-1,3-diol was performed by HRGC after derivatization with Mosher's reagent revealing the occurrence of optically pure diol in apple fruit. By
摘要在从中和的苹果汁中获得的提取物中,cv。Jonathan,通过使用乙酸乙酯在 Amberlite XAD 树脂上进行 LC 分离,谨慎地通过 HRGC、HRGC-MS 和 HRGC-FTIR 在全-O-甲基化后鉴定了 3-羟基辛基 βd-葡萄糖苷。在用 Mosher 试剂衍生化后,通过 HRGC 对游离的和糖苷键合的辛烷-1,3-二醇进行手性评估,结果表明苹果果实中存在光学纯二醇。通过将 1,3-二乙酰氧基衍生物的旋光度与先前公布的数据进行比较,评估了 (R)-(+)-构型。