RESEARCHES UPON THE FREE AMINO ACIDS
SERINE AND THREONINE IN FIVE EPILOBIUM
SPECIES (ONAGRACEAE).
LUDOVIC EVERARD BEJENARU1, NELI OLAH2, GEORGE DAN
MOGOŞANU1*, CORNELIA BEJENARU3, JOHNY NEAMŢU4,
HONORIUS POPESCU1
1Department of Pharmacognosy & Phytotherapy
2Department of Research & Development, PlantExtrakt, Laboratories of
Phytotherapy and Homeopathy, 407059 Rădaia, Cluj, Romania
3Department of Vegetal and Animal Biology
4Department of Physics
1,3,4University of Medicine and Pharmacy of Craiova, Faculty of
Pharmacy, 2–4 Petru Rareş Street, 200349 Craiova, Romania
*corresponding author: mogosanu2006@yahoo.com
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Abstract:
In this paper, the qualitative and quantitative determination of free amino acids
serine and threonine in the aerial parts of five Epilobium species from the Romanian flora
(E. angustifolium, E. collinum, E. hirsutum, E. montanum, and E. parviflorum) have been
established by TLC-densitometry. The high amount of free amino acids has been found in
the aerial parts of E. hirsutum, E. angustifolium and E. montanum. Each of the five
Epilobium species, except E. collinum, contains four amino acids. High amounts of
threonine and low amounts of serine have been found in all aerial parts. Serine is missing in
the aerial parts of E. collinum.
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