Abstract
Free radicals are shown as the main reason of many chronic and degenerative diseases. Because of the toxicity and undesirable effects of synthetic antioxidants, finding of new antioxidant natural agents is very important, especially edible plants. As an edible plant, valerian is used for various aims. Also, Valeriana species are known with their antioxidative compounds. In our previous study, some biological activities of Valeriana alliariifolia Adams roots extracts, collected in 2012, and the chemical compositions of active samples were determined. For this study, after 5 years collected plant materials were investigated again to determine and compare the antioxidant activities, the total phenolic contents and the chemical composition profile of the extracts from different plant-parts and to compare obtained results with the previous data. While RWI, RWM1 and RWM1residue were found most active by DPPH method and AHM1 by FRAP method, REM1 showed the highest activity by CUPRAC method. The high activity of AHM1 is parallel to its phenolic content. It can be thought that the difference between the results of our two studies, is due to the change of plant content from year to year and various environmental factors. This is important for achieving standardization in the production of its preparations.
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Claims 5
Claim · model-written summary
RWI, RWM1 and RWM1residue extracts of Valeriana alliariifolia were the most active by the DPPH method.
- Taxon
- Valeriana alliariifolia
Valeriana alliariifoliat0 - Material
- RWI, RWM1 and RWM1residuee1
- Outcome
- most active by DPPH methode1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“RWI, RWM1 and RWM1residue were found most active by DPPH method”
t0“Valeriana alliariifolia”
Claim · model-written summary
AHM1 extract was the most active by the FRAP method.
- Taxon
- Valeriana alliariifoliaValeriana alliariifoliat0
- Material
- AHM1e1
- Outcome
- FRAP methode1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“AHM1 by FRAP method”
t0“Valeriana alliariifolia”
Claim · model-written summary
REM1 extract showed the highest activity by the CUPRAC method.
- Taxon
- Valeriana alliariifoliaValeriana alliariifoliat0
- Material
- REM1e1
- Outcome
- highest activity by CUPRAC methode1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“REM1 showed the highest activity by CUPRAC method”
t0“Valeriana alliariifolia”
Claim · model-written summary
The high activity of the AHM1 extract parallels its phenolic content.
- Taxon
- Valeriana alliariifoliaValeriana alliariifoliat0
- Material
- AHM1e1
- Compound
- phenolic contente1
- Outcome
- high activitye1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The high activity of AHM1 is parallel to its phenolic content”
t0“Valeriana alliariifolia”
Claim · model-written summary
The authors suggest that the difference between the two studies is due to year-to-year change in plant content and environmental factors.
- Taxon
- Valeriana alliariifoliaValeriana alliariifoliat0
- Outcome
- the difference between the results of our two studiese1
- Qualifier
- the change of plant content from year to year and various environmental factorse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“It can be thought that the difference between the results of our two studies, is due to the change of plant content from year to year and various environmental factors”
t0“Valeriana alliariifolia”