کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1354432 980735 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phenological variations of secondary metabolites from Hypericum triquetrifolium Turra
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Phenological variations of secondary metabolites from Hypericum triquetrifolium Turra
چکیده انگلیسی

The essential oils and phenolic constituents from the aerial parts of Hypericum triquetrifolium Turra, were analyzed at three developmental stages (vegetative, flowering and fruiting stages). The highest content of oil (0.12% w/w) was obtained at full flowering. Whatever the analyzed stage, n-octane, α-pinene, β-caryophyllene, 2-methyloctane, n-nonane, α-longipinene, caryophyllene oxide and β-pinene were found to be the main compounds. However, their percentages varied with the phenological cycle. Analysis by RP-HPLC-DAD of the methanolic extracts enabled us to identify 14 phenolic components and rutin, hyperoside, quercitrin and quercetin were reported as the main components. With the exception of chlorogenic acid, kaempferol and amentoflavone, the content of the remaining identified phenolic components varied with the phonological cycle.

Figure optionsDownload as PowerPoint slideResearch highlights
► Whatever the analyzed stage, n-octane and α-pinene were the main compounds.
► Quantitative variations among the essential oils were observed.
► Rutin, hyperoside, quercitrin and quercetin were the main bioactive components.
► Considerable variations in the content of the bioactive components were pointed out.
► Evolutionary and chemotaxonomic significance of the results are discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical Systematics and Ecology - Volume 39, Issue 1, February 2011, Pages 43–50
نویسندگان
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