RESEARCH OF AMINO ACID COMPOSITION OF PORTULACA OLERACEA L. AND PORTULACA GRANDIFLORA HOOK
DOI:
https://doi.org/10.11603/2312-0967.2016.4.7112Keywords:
Portulaca oleracea L., Portulaca grandifl ora Hook, amino acids.Abstract
Introduction
It is known that aminoacids play important role in synthesis of enzymes, hormones, neurotransmitters, some elements of connective and muscular tissue, in the process of hematopoiesis. Aminoacids are used in medicine for the treatment of cardiovascular, nervous, digestive diseases, for strengthening immune system and for inhibiting tumor promotion [1, 2, 3, 5].
Also, aminoacids are one of the main groups of the biological active compounds of most plants and are necessary for synthesis of vitamins, alkaloids, pigments, flavonoids, polyphenols and steroids [6].
The aim of research was to determine the qualitative composition and quantitative contents of aminoacids in leaves, herbs, roots of Portulaca oleracea L. and Portulaca grandiflora Hook.
Materials and methods
The determination of aminoacids was carried out by ion exchange chromatography with using automatic aminoacid analyzer AAA T-339M (CzechRepublic).
Results and discussion
According to the study, 17 aminoacids were identified. 9 of these aminoacids (arginine, valine, histidine, isoleucine, leucine, lysine, methionine, threonine and phenylalanine) are essential. The highest total content of aminoacids (24,35 mg/100 mg) was established in the leaves of Portulaca oleracea L. The lowest total content of aminoacids (11,97 mg/100mg) was determined in the roots of Portulaca grandiflora Hook.
Cysteine is found in the highest concentration in roots of Portulaca grandiflora Hook.
Arginine, aspartatic acid and lysine are found in highest concentration in roots of Portulaca oleracea L.
Glycine, valine, alanine, serine and glutamic acid are accumulated in highest concentration in leaves of Portulaca oleracea L.
Alanine, arginine, aspartic acid, valine, glycine and lysine were the predominant amino acids in all specimens.
Conclusions
- The qualitative composition and quantitative content of 17 amino acids were determined in leaves, herbs, roots of Portulaca oleracea L. and Portulaca grandiflora Hook.
- Alanine, arginine, aspartic acid, valine, glycine and lysine were the predominant amino acids in all specimens.
- The highest total content of aminoacids (24.35 mg/100 mg) was established in the leaves of Portulaca oleracea L.
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