کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5155008 | 1500393 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison of chemical composition of Hypericum perforatum and H. maculatum in Estonia
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Of numerous species belonging to the medicinally important genus Hypericum, only H. perforatum L. and H. maculatum Crantz grow widely in Estonia. A comparative biochemical systematics study of hypericins, hyperforins and other phenolics within Hypericum spp. growing in Estonia was performed. For comprehensive metabolomic investigation, 42 samples of H. perforatum and 16 samples of aerial parts of H. maculatum were collected in two consecutive years from various locations; methanolic extracts were prepared from airdried leaves and flowers. The concentrations of a quinic acid derivative, caffeic acid glucoside, vanillic acid glucoside, neochlorogenic acid, chlorogenic acid, catechin, epicatechin, myricetin glucoside, hyperoside, isoquercitrin, rutin, quercetin pentoside, quercitrin, kaempferol glucoside, kaempferol rutinoside, quercetin, hyperforin, adhyperforin, protopseudohypericin, pseudohypericin, and hypericin were determined by LC-DAD-MS/MS. All the aforementioned compounds were detected in both species, although some at very different levels - H. maculatum contained rutin and hyperforins only in trace amounts and overall tended to contain more phenolic compounds. The level of total hypericins was the same for both species. These results constitute a further contribution to the systematic knowledge about the Hypericum spp. Results of principal component analysis (PCA) demonstrated distinct between-years and between-species diversity in the chemical composition of the plants studied. Between-years diversity in Hypericum spp. has not been addressed before.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical Systematics and Ecology - Volume 73, August 2017, Pages 41-46
Journal: Biochemical Systematics and Ecology - Volume 73, August 2017, Pages 41-46
نویسندگان
Linda Rusalepp, Ain Raal, Tõnu Püssa, Uno Mäeorg,