Author/Authors :
Abe، نويسنده , , Yutaka and Shoji، نويسنده , , Toshihiko and Kawahara، نويسنده , , Nobuo and Kamakura، نويسنده , , Hiroyuki and Kanda، نويسنده , , Tomomasa and Goda، نويسنده , , Yukihiro and Ozeki، نويسنده , , Yoshihiro، نويسنده ,
Abstract :
The structures of a procyanidin tetramer and pentamer from unripe apple (Malus pumila) were elucidated by low-temperature NMR analysis at −34 °C. These structures were [epicatechin-(4β→6)-epicatechin-(4β→8)-epicatechin-(4β→8)-epicatechin (1)] and [epicatechin-(4β→8)-epicatechin-(4β→8)-epicatechin-(4β→8)-epicatechin-(4β→8)-epicatechin (2)].
Keywords :
Condensed tannin , Oligomer , NMR , pentamer , tetramer , Malus pumila , APPLE , Procyanidin
