Antioxidant Activity and Selenium and Polyphenols Content from Selected Medicinal Plants Natives from Various Areas Abundant in Selenium (Poland, Lithuania, and Western Ukraine)

Abstract

The study was performed on Centaurea cyanus, Chamomilla recutita, Majorana hortensis, Ocimum basilicum, Plantago lanceolata, Sinapis alba, and Valeriana officinalis harvested in Lithuania, Poland, and Ukraine. Our aim was to determine the differences in selenium concentrations, total polyphenols, and the antioxidant activity in same-species samples from different regions. Another goal was to assess the correlations between these variables within the species. We found variations in most species, but not in all regions of harvesting. In four of the six species from Ukraine, we observed the highest concentration of Se. The selenium concentrations ranged from 15–182 µg/kg DW, and the greatest variation between the regions occurred in S. alba. The level of polyphenols was 5.52–53.25 mg TAE/100 g DW, and the largest differences between the sampling regions occurred in P. lanceolata and O. basilicum. ABTS radicals scavenging ability ranged from 5.20–59.79 μM AAE/100 g DW, while the FRAP potential was 13.56–409.14 μM FeE/100 g DW. The largest differences in antioxidant activity were found in O. basilicum and M. hortensis. Pearson’s correlation coefficients indicate that polyphenols may be responsible for antioxidant activity in Ch. recutita, O. basilicum, and V. officinalis, and selenium is responsible for antioxidant activity in M. hortensis. However, both polyphenols and selenium play a role in the antioxidant properties of C. cyanus and P. lanceolata. Also, selenium in C. cyanus and Ch. recutita may affect the level of total polyphenols. The examined species may supplement the human diet with exogenous antioxidants.

Dose titration of plantain herb (Plantago lanceolata L.) supplementation on growth performance, serum antioxidants status, liver enzymatic activity and meat quality in broiler chickens

“…Furthermore, higher serum antioxidant levels improve PUFAs levels in broiler meat either by inhibiting the desaturase enzyme activity or improving the enzyme activity, which converts SFA into PUFA (Chung and Choi 2016). Moreover, PL contains selenium, an essential mineral for the anti-oxidative process, ranging from 40 $ 50 mg/kg DM, which improved PUFAs content in broiler meat (Puerto et al 2017;Sotek et al 2019). In this experiment, the PL80 group had higher serum antioxidant levels, and the PUFAs content was highest in the PL120 group, which conflicts with the previous argument.…”

Antioxidant Contents in a Mediterranean Population of Plantago lanceolata L. Exploited for Quarry Reclamation Interventions

“…Our data are in agreement with other reports indicating the relationship between total phenolics content and antioxidant capacity [ 39 , 40 ]. Conversely, Sotek et al [ 30 ] did not find in plantain a correlation between TotP and antioxidant capacity with ABTS assay.…”

“…A content of total phenolics of 53 mg of tannic acid equivalent 100 g −1 DW was found in leaves of plantain grown in Ukraine by Sotek et al [ 30 ]. This value is quite lower than our results, but the extraction was done with water and the samples were not freeze dried.…”

Tree Bark Phenols Regulate the Physiological and Biochemical Performance of Gladiolus Flowers

“…Reactive oxygen species, such as H 2 O 2 , affect cell membrane integrity by damaging proteins, lipids, pigments, and nucleic acids, which accelerates cut flower senescence. The antioxidative mechanism plays a major role in controlling flower senescence by activating enzymes, such as superoxide dismutase (SOD) and catalase (CAT), that antagonize the effects of reactive oxygen species [9][10][11][12]. Microbial growth affects the physiology of cut flowers by blocking vessels via the deposition of dead bacteria and the macromolecules formed through bacterial degradation.…”