Articles
COMPARATIVE STUDY ON THREE HYPERICUM SPECIES GROWING WILD IN POLAND
Article number
576_5
Pages
41 – 43
Language
English
Abstract
The developmental and chemical differences between H. perforatum, H. maculatum and H. elegans originating in the south of Poland (Kraków district) were investigated.
The research was done in one- and two-year-old plantations, respectively, with plants harvested at four stages of development (vegetative phase, before blooming, beginning of blooming and at full blooming). The mass of raw material and the content of flavonoids and hypericins were determined for each harvest.
The yield of herb and the content of active compounds were highest in H. elegans. Taking into consideration the mass of herb and the content of investigated compounds, the optimal time for harvest appeared to be the full blooming stage, especially in the second year of vegetation.
The research was done in one- and two-year-old plantations, respectively, with plants harvested at four stages of development (vegetative phase, before blooming, beginning of blooming and at full blooming). The mass of raw material and the content of flavonoids and hypericins were determined for each harvest.
The yield of herb and the content of active compounds were highest in H. elegans. Taking into consideration the mass of herb and the content of investigated compounds, the optimal time for harvest appeared to be the full blooming stage, especially in the second year of vegetation.
Authors
E. Osinska, Z. Weglarz
Keywords
Hypericum perforatum, H. maculatum, H. elegans, herb mass, hypericins, flavonoids, time of harvest
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