scholarly journals Antioxidant activity and content of selected antioxidant compounds in grain of different oat cultivars

2020 ◽  
Vol 66 (No. 7) ◽  
pp. 327-333
Author(s):  
Ivana Capouchová ◽  
Barbora Burešová ◽  
Luboš Paznocht ◽  
Marie Eliášová ◽  
Kateřina Pazderů ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Dry Matter ◽  
Cropping Systems ◽  
Cropping System ◽  
Weather Conditions ◽  
Antioxidant Compounds ◽  
Total Antioxidant Activity ◽  
Naked Oat ◽  
Total Antioxidant ◽  
Oat Cultivars

The total antioxidant activity (TAA), total contents of polyphenols (TPC), phenolic acids (TPA) and tocols (TTC) were determined in the grain of 5 oat cultivars of Czech origin grown under organic and conventional cropping systems in two-year experiments (2018 and 2019). The TPC ranged from 772.9 mg/kg DM (dry matter) (hulled oat cv. Seldon) to 890.6 mg/kg (naked oat cv. Patrik); the TPA from 261.6 mg/kg (cv. Seldon) to 479.0 mg/kg (cv. Patrik); the TTC from 110.9 mg/kg (hulled oat cv. Korok) to 126.5 mg/kg (cv. Seldon). The TAA ranged from 427.1 mg/kg (cv. Korok) to 474.9 mg/kg (cv. Seldon). Besides the effect of the cultivar, the TAA and antioxidant contents were significantly affected also by year (weather conditions); higher values were observed in the drier and warmer the year 2019. The effect of the cropping system was statistically insignificant.

scholarly journals The effect of genotype, weather conditions and cropping system on antioxidant activity and content of selected antioxidant compounds in wheat with coloured grain

2018 ◽  
Vol 64 (No. 11) ◽  
pp. 530-538 ◽  
Author(s):  
Monika Zrckova ◽  
Ivana Capouchova ◽  
Marie Eliášová ◽  
Luboš Paznocht ◽  
Kateřina Pazderů ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Environmental Factors ◽  
Cropping Systems ◽  
Cropping System ◽  
Total Content ◽  
Weather Conditions ◽  
Antioxidant Compounds ◽  
Total Antioxidant Activity ◽  
Breeding Line ◽  
Total Antioxidant

The aim of the study was to evaluate total antioxidant activity (TAA) and total content of carotenoids (TCC), anthocyanins (TAC), phenolics (TPC) and phenolic acids (PAs) in grain of selected pigmented wheat genotypes and traditional control cultivar cultivated under organic and conventional cropping systems in two-year trials. All of the evaluated parameters were significantly affected both by genotype and evaluated environmental factors. While in TPC, PAs and TCC the effect of years prevailed, TAC was affected mainly by genotype. The effect of genotype and year in TAA was comparable. TPC ranged from 581.71 mg/kg (control cv. Annie) to 723.60 mg/kg (cultivar with purple pericarp PS Karkulka), total PAs content from 711.77 mg/kg (cv. PS Karkulka) to 849.47 mg/kg (cv. Skorpion with blue aleurone). TCC varied from 1.56 mg/kg (cv. PS Karkulka) to 5.32 mg/kg (cv. Citrus with yellow endosperm). The highest TAC (63.23 mg/kg) was found in cv. Skorpion, the lowest (12.70 mg/kg) in cv. AF Jumiko with purple pericarp. Anthocyanins were not detected in cvs. Annie and Citrus. TAA varied from 162.68 mg/kg in cv. Annie to 226.71 mg/kg in breeding line KM 53-14 with blue aleurone. Higher TAA and antioxidants contents and lower grain yields were observed in organic cropping system and in drier year 2016.

scholarly journals Effect of high-voltage power lines electromagnetic field on growth and development of green bean (Phaseolus vulgaris L.)

2021 ◽  
pp. 51-61
Author(s):  
I. M. Kaigorodova ◽  
N. A. Golubkina ◽  
U. D. Plotnikova ◽  
V. A. Ushakov ◽  
A. A. Antoshkin
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Electromagnetic Field ◽  
Phaseolus Vulgaris ◽  
Photosynthetic Pigments ◽  
Growth And Development ◽  
Dry Matter ◽  
Total Antioxidant Activity ◽  
Phaseolus Vulgaris L ◽  
Total Antioxidant

Relevance. High voltage electric power transmission lines (HVEPTL) cover a fairly large area of agricultural land all over the world. Investigations of electromagnetic field effect on growth and development of plants are held in various countries. The reaction of individual plant species and even varieties to the electromagnetic field manifests itself in different ways. The network of HVEPTL is growing steadily in our region as well. Nevertheless, information about the effect of the electromagnetic field on bean plants is rather scares. The aim of the present work was to evaluate HVEPTL effect on the growth and development of vegetable beans, depending on the intensity of the electromagnetic field.Material and Methods. The work was achieved on green beans Phaseolus vulgaris L. (Sakfit, Pagoda, MBZ 556, Arishka cvs) grown in conditions of different electromagnetic field values under HVEPTL. Biometrical parameters, plant productivity, yield, dry matter, photosynthetic pigments content, ascorbic acid, total antioxidant activity and total phenolics were determined.Results. In the ranges of electric field values from (5-10) to (400-440) B/m and magnetic field from 0 to 0.53 μT a beneficial effect of electromagnetic field on accumulation of leaves photosynthetic pigments (15-65% increase of chlorophyll а and 6-52% increase of chlorophyll b), polyphenol content (increase up to 17%), antioxidant activity (1-15% increase), and dry matter content (2,5-11% increase) and beans ascorbic acid levels (12-28% increase) were registered. Accordingy, increased plants growth, development and productivity were demonstrated. Peculiarities of beans plants grown under HVEPTL included decrease leaves carotene levels at electric field level of 60-100 B/m (70 m form HVEPTL), and lack of correlation between chlorophyll and carotene in leaves and total antioxidant activity and phenolics content at the stage of technical ripening. 

scholarly journals Determination of total phenolic, flavonoids and antioxidant activity in Calligonum polygonoides L. from Thar Desert

2021 ◽  
Vol 42 (5) ◽  
pp. 1347-1354
Author(s):  
M.K. Berwal ◽  
◽  
S.M. Haldhar ◽  
C. Ram ◽  
P.L. Saroj ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Antioxidant Potential ◽  
Perennial Herb ◽  
Total Phenolic ◽  
Antioxidant Compounds ◽  
Total Antioxidant Activity ◽  
Thar Desert ◽  
Plant Parts ◽  
Total Antioxidant

Aim: The aim of the study was Identification and quantification of phenolic compounds, total flavonoides content and antioxidant potential of flower buds, foliages, bark and root of a perennial herb, Calligonum polygonoides (Phog) of Thar Desert. Methodology: The methanolic extracts of different plant parts of C. polygonoides were subjected to LC-MS/MS (Waters Acquity UPLC-PDA, TQD) analysis for phenolic identification and spectrophotometric assay of total phenolic and flavonoids content and total antioxidant activity was estimated. Results: A total of 15 phenolic compounds were identified and quantified, among which gallic acid content was abundant, followed by catechin. Besides these, the other major phenolic compounds detected in different plant parts were vanillic, chlorogenic acid, epicatechin, coumeric acid, catechol, vanillic acid, epicatechin and syringic acid. Extremely higher values were recorded for total phenolics, flavonoids and antioxidant capacity. The values for phenol, flavonoids and total antioxidant activity in bark extracts were higher than that of clove extract. Interpretation: The identified phenolic compounds possess high antioxidant potential. These results provide scientific evidence for use of C. polygonoides as safe natural antioxidant compounds in nutraceutical and pharmaceutical industry.

scholarly journals Comparative evaluation of several biologically active compounds content in Anthriscus sylvestris (L.) Hoffm. and Anthriscus cerefolium (L.) Hoffm.

2020 ◽  
pp. 81-87
Author(s):  
V. A. Kharchenko ◽  
A. I. Moldovan ◽  
N. A. Golubkina ◽  
M. S. Gins ◽  
D. R. Shafigullin
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Dry Matter ◽  
Nutritional Value ◽  
Biologically Active ◽  
High Yield ◽  
Dry Matter Content ◽  
Total Antioxidant Activity ◽  
Anthriscus Sylvestris ◽  
Total Antioxidant

Relevance. A rare representative of the Apiaceae family the garden chervil is widely used abroad in nutrition and in folk and traditional medicine.Methods. Evaluation of nutritional potential of Anthriscus cerefolium (L.) Hoffm and Anthriscus sylvestris Hoffm grown in Moscow region is achieved using the parameters of ascorbic acid, polyphenols, flavonoids, total antioxidant activity of ethanolic extracts.Results. Garden chervil (Anthriscus cerefolium) was characterized by lower concentrations of ascorbic acid (1.6-1.8 times), phenolics (2.2-2.5 times), flavonoids (1.8-2.2 times), total antioxidant activity (1-1.54 times) and dry matter content (2.4-4.9 times) than wild chervil (Anthriscus sylvestris) but demonstrated significantly higher levels of total dissolved solids. Significantly higher content of dry matter in leaves and especially stems of wild chervil correlates with low nutritional value of stems despite large total mass of plants compared to garden chervil. Contrary to wild chervil, Anthriscus cerefolium recorded unusually high concentrations of carotene in leaves and significantly lower levels of chlorophyll b. Seeds of garden chervil were also characterized by low antioxidant status contrary to wild chervil and seeds of curly parsley. High yield and significant nutritional value of garden chervil indicate important prospects of its wide-scale cultivation in Russia while Anthriscus sylvestris plants seem to be important in breeding processes.

Diurnal changes in the total antioxidant activity of human saliva

2007 ◽  
Vol 33 (3) ◽  
pp. 375-376 ◽  
Author(s):  
M. F. Borisenkov ◽  
L. A. Erunova ◽  
E. M. Lyuseva ◽  
N. V. Pozdeeva
Keyword(s):  
Antioxidant Activity ◽  
Human Saliva ◽  
Diurnal Changes ◽  
Total Antioxidant Activity ◽  
Total Antioxidant

scholarly journals Determination of Chemical Constituents and Antioxidant Activities of Leaves and Stems from Jatropha cinerea (Ortega) Müll. Arg and Jatropha cordata (Ortega) Müll. Arg

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 212
Author(s):  
Yeimi Cecilia Vega-Ruiz ◽  
Corina Hayano-Kanashiro ◽  
Nohemí Gámez-Meza ◽  
Luis Angel Medina-Juárez
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Biological Effects ◽  
Chemical Constituents ◽  
Weather Conditions ◽  
Antioxidant Compounds ◽  
Leaf Extracts ◽  
Methanolic Extracts ◽  
Northwestern Region ◽  
High Concentrations

Jatropha species have been shown to be an important source of secondary metabolites with different biological effects. Jatropha cinerea (Ortega) Müll. Arg and Jatropha cordata (Ortega) Müll. Arg are distributed in the Northwestern region of Mexico, are adapted to extreme weather conditions and are widely used (stems, leaves, and sap) in traditional medicine. The aim of the present study was to carry out the phytochemical characterization and the evaluation of the antioxidant activity in methanolic extracts of stems and leaves from J. cinerea and J. cordata. The compounds present in the extracts of both species were characterized by ESI-IT-MS/MS and quantified by HPLC-DAD. The results showed that the stem extracts of both species are rich in phenolic acids, while the leaf extracts are rich in flavonoids. Some of the main compounds found were gallic acid, gentisic acid, 3,4-Dihydroxybenzoic acid, vitexin, isovitexin, and catechol. Both species showed high concentrations of phenols and total flavonoids and antioxidant activity. J. cordata showed the highest antioxidant capacity and the highest concentration of phenolic compounds. Overall, both Jatropha species are a natural source of antioxidant compounds with potential biotechnological uses.

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