Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1153
Title: Selective fractions obtained from plant species cultivated in Romania with potential effect on counteracting diseases associated with aging processes
Authors: Colceriu-Mihul, Svetlana
Bubueanu, Corina
Serban, Ecaterina Anca
Grigore, Alice
Rughinis, Domnica
Bazdoaca, Cristina
Nita, Sultana
Keywords: Rosmarinus officinalis
Selective fractions
Antioxidant
Issue Date: 2017
Publisher: University Politehnica of Bucharest
Abstract: The aim of these studies was to obtain Rosmarini folium selective fractions with beneficial effect in counteracting diseases associated with aging processes.By four different methods 9 selective fractions were obtained. HPLC analysis and quantitative determination of active principles from selective fraction show that the values obtained from individual assessment by HPLC were well correlated with the values obtained by the spectrophotometrically methods. The selective fractions have a total flavonoid content expressed as rutin from 2.004 to 66.970% and respectively 0.651 to 10.284% polyphenol carboxylic acids expressed as rosmarinic acid. Antioxidant activity evaluation showed that polyphenol carboxylic acids rich fractions such as RIII: 10.284%, RIIC: 10.257%; had 89.44%; 88.12% antioxidant activity in 1% dilution and 87.52%; 89.07% antioxidant activity in 0.1% dilution, similar to rosmarinic acid who has antioxidant activity of 88.99% respectively 89.84% in dilution of 1% respectively 0.1%. The fractions with 2.642% - 3.950% polyphenol carboxylic acid content exhibited an antioxidant activity of 45.73% - 87.5% in 1% dilution and of 8.75 to 87.500% activity in 0.1% dilution. Comparing the antioxidant activity of selective fractions and the polyphenol carboxylic acids content expressed as rosmarinic acid it can be concluded that when the concentration of polyphenol carboxylic acids increases the antioxidant activity also increases, though not an exact correlation can be made. A correlation between the flavonoids content of the selective fractions and antioxidant activity can not be made by this method.
Description: Scientific Bulletin, series F, Biotechnologies, XXI, 2017, pp. 325-329
URI: http://hdl.handle.net/123456789/1153
ISSN: 2285-1364
CD-ROM 2285-5521
online 2285-1372
L 2285-1364
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