Tokar Magdalena, Klimek Barbara
Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Lódź, 1 Muszyńskiego Str., 90-151 Lódź, Poland.
Acta Pol Pharm. 2004 Jul-Aug;61(4):273-8.
Quantitative determination of lignan glucosides in flowers and leaves of three taxons of Forsythia Vahl was performed using the HPLC method. The main lignan compound in the flowers of F. suspensa appeared to be (+)-pinoresinol beta-D-glucopyranoside, whereas in the leaves of this species phillyrin was the predominant lignan. The content of (+)-pinoresinol beta-D-glucopyranoside in F. suspensa flowers amounted to 4.3-7% and that of phillyrin did not reach 1%. The inverse ratio of (+)-pinoresinol beta-D-glucopyranoside to phillyrin occurred in the leaves of F. suspensa, which contained up to 4.3% of phillyrin and 1.6% and less (+)-pinoresinol beta-D-glucopyranoside. The flowers of F. viridissima and F. x intermedia were rich in arctiin: 5.5-10.2% and up to 11.5%, respectively. The leaves of these two species contained less arctiin: up to 4.3% in F. viridissima and up to 2.3% in F. x intermedia. The flowers showed the highest level of lignans at the phase of buds, it decreased during the blooming time.
采用高效液相色谱法对连翘属三个分类群的花和叶中的木脂素苷进行了定量测定。连翘花中的主要木脂素化合物似乎是(+)-松脂醇β-D-葡萄糖苷，而在该物种的叶中，连翘苷是主要的木脂素。连翘花中(+)-松脂醇β-D-葡萄糖苷的含量为4.3-7%，连翘苷的含量未达到1%。连翘叶中(+)-松脂醇β-D-葡萄糖苷与连翘苷的比例相反，其中连翘苷含量高达4.3%，(+)-松脂醇β-D-葡萄糖苷含量为1.6%及以下。金钟花和中间连翘的花中富含牛蒡子苷：分别为5.5-10.2%和高达11.5%。这两个物种的叶中牛蒡子苷含量较少：金钟花中高达4.3%，中间连翘中高达2.3%。花在芽期木脂素水平最高，在开花期降低。
