Variability of Hordeum vulgare L. Cultivars in Yield, Antioxidant Potential, and Cholinesterase Inhibitory Activity

Kobus‐Cisowska, Joanna; Szulc, Piotr; Szczepaniak, Oskar; Dziedziński, Marcin; Szymanowska, Daria; Szymandera‐Buszka, Krystyna; Goryńska-Goldmann, Elżbieta; Gazdecki, Michał; Telichowska, Aleksandra; Ligaj, Marta

doi:10.3390/su12051938

Cited by 20 publications

(15 citation statements)

References 31 publications

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“…Reducing capacity of the obtained extracts was determined using the Folin-Ciocâlteu reagent (FCR) and the method of Kobus-Cisowska et al with minor modifications [41]. Reducing capacity was expressed as mg of gallic acid (Sigma-Aldrich, Steinheim, Germany) equivalents (GAE) per 1 g (mg/1 g) of dry mass.…”

Section: Folin-ciocâlteu Reagent Assaymentioning

confidence: 99%

Identification of Polyphenols from Coniferous Shoots as Natural Antioxidants and Antimicrobial Compounds

et al. 2020

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Currently, coniferous shoots are almost absent as a food ingredient despite their wide availability in many parts of the world. The aim of the study was to assess and compare the composition of selected plant metabolites, evaluate the antioxidant and antimicrobial properties of selected shoots collected in 2019 from the arboretum in Zielonka (Poland), including individual samples from Picea abies L. (PA), Larix decidua Mill (LD), Pinus sylvestris L. (PS), Pseudotsuga menziesii (PM) and Juniperus communis L. (JC). The present work has shown that aqueous extracts obtained from tested shoots are a rich source of phenols such as caffeic acid, ferulic acid, chlorogenic acid, 4-hydroxybenzoic acid and many others. Obtained extracts exhibit antioxidant and antimicrobial properties in vitro. The highest sum of the studied phenolic compounds was found in the PA sample (13,947.80 µg/g dw), while the lowest in PS (6123.57 µg/g dw). The samples were particularly rich in ferulic acid, chlorogenic acid and 4-hydroxybenzoic acid. The highest values regarding the Folin-Ciocâlteu reagent (FCR) and ferric reducing ability of plasma (FRAP) reducing ability tests, as well as the total flavonoid content assay, were obtained for the LD sample, although the LD (14.83 mg GAE/g dw) and PM (14.53 mg GAE/g dw) samples did not differ statistically in the FCR assay. With respect to free radical quenching measurements (DPPH), the PA (404.18-μM Trolox/g dw) and JC (384.30-μM Trolox/g dw) samples had the highest radical quenching ability and did not differ statistically. Generally, extracts obtained from PA and PS showed the highest antimicrobial activity against tested Gram-negative bacteria, Gram-positive bacteria and fungi.

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Section: Folin-ciocâlteu Reagent Assaymentioning

confidence: 99%

Identification of Polyphenols from Coniferous Shoots as Natural Antioxidants and Antimicrobial Compounds

et al. 2020

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“…The study on the scavenging power of DPPH-free radicals was based on the reduction of absorbance of a DPPH (2,2-diphenyl-1-picrylhydrazyl) solution at wavelength 517 nm in the presence of free radicals. [12] Measurements were performed using SP-830 Plus apparatus (Metertech, Taiwan). The free radical scavenging strength and its percentage of DPPH radical scavenging were evaluated on the basis of the standard curve for y = 321.54x + 21.54 (R 2 = 0.986) and presented as mg TE (Trolox Equivalent)/1 g dw of extract.…”

Section: Antioxidative Potential Analysis By Spectrophotometric Methodsmentioning

confidence: 99%

“…The ABTS cation radical scavenging activity was measured according to the TEAC (Trolox Equivalent Antioxidant Capacity) test according to the methodology described by Kobus-Cisowska et al [12] Spectrophotometric measurement of the ability to scavenge ABTS •+ formed from ABTS (2,20azinobis-(3-ethylbenzothiazoline-6-sulfonic acid)) by oxidation with potassium persulfate was carried out at a wavelength of 414 nm using SP-830 Plus apparatus (Metertech, Taiwan). The percentage rate of ABTS •+ scavenging was calculated from the standard curve for y = 121.63x +26.33 (R 2 = 0.96) and expressed as mg TE/g dw of extract.…”

Section: Antioxidative Potential Analysis By Spectrophotometric Methodsmentioning

confidence: 99%

Exploring antimicrobial and antioxidant properties of phytocomponents from different anatomical parts of Prunus padus L

Telichowska¹,

Kobus‐Cisowska

Stuper‐Szablewska

et al. 2020

International Journal of Food Properties

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Prunus padus L. is a wild growing plant in various parts of the world with low soil requirements. This work evaluated the content of selected phytochemicals, antioxidant potential and determined the antimicrobial effect of individual anatomical parts of P. padus (i.e. leaves, bark, and fruits). It was shown that the examined anatomical parts of bird cherry (Prunus padus L.) contained polyphenols and low-molecular organic acids. The highest content of phenolic acids was found in P. padus leaves (1063 ± 26 mg/100 g dm). The analysis regarding flavonols confirmed that the highest content was found in the bark (1530 ± 61 mg/100 g dm). The content of low molecular weight organic acids, whose highest value was found in the fruits (1658 ± 27 mg/100 g dm) was also assessed. The highest antioxidant activity with DPPH radicals was confirmed for the bark (8.9 ± 0.03 mg TE/g dw). The FRAP test also showed the highest activity for the bark extract (380 ± 18 µM FeSO 4 /g dw). It was shown that signals located in the region of negative potentials in SWV (square wave voltammetry) indicated a high reducing ability of compounds present in P. padus, which means that they can be a very efficient protective barrier against oxidizing agents (i.e. the greatest intensity was for the leaves extract). The highest activity against Gram-negative bacteria was recorded in bird cherry leaves and the lowest in the bark. It showed that the leaves, fruits, and bird cherry bark can be a good source of antioxidant compounds and an attractive raw material with antimicrobial properties that can be widely applied, which is confirmed by the obtained results.

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“…The extracts exhibit intervarietal differences in the polyphenolic compounds as well as other bioactive compounds. 11,12 Further, variations are observed in the polyphenolics profile and antioxidant activity of the extracts under abiotic stress conditions. 12 Foods rich in polyphenolics can increase the antioxidant capacity of plasma, or influence the absorption of pro-oxidative food components such as iron, thus having the potential to reduce the risk of degenerative diseases associated with oxidative stress.…”

Section: Introductionmentioning

confidence: 98%

Evaluation of Diverse Barley Cultivars and Landraces for Contents of Four Multifunctional Biomolecules with Nutraceutical Potential

Derakhshani

Malherbe

Panozzo

et al. 2020

Curr Res Nutr Food Sci

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Barley is long-identified as a functional food due to its content of micronutrients, β-glucans and vitamins. However, there is scant literature on a number of other nutritionally important biomolecules in the barley grain. This study determined the contents of four biomolecules, each with multiple known human and/or other animal health benefits, in the grains of 27 commercial barley cultivars and 7 landraces of barley from diverse countries of origin. These included the antioxidants, comprised of various vitamin E isomers and polyphenols, the osmoprotectant glycine betaine (GB) that protects cellular cytoplasm from osmotic shock, and the ‘plant stress hormone’ abscisic acid (ABA) which is endogenously expressed in humans and has multiple roles in physiology. All grains exhibited the presence of all biomolecules, suggesting they could potentially make some contribution to the health benefits of barley. The total vitamin E content varied between 19.20 - 54.56 μg/g DW, with α-tocotrienol being the major component (33.9 - 60.7%). The phenolics made up 3.21 - 9.73 mg gallic acid equivalent (GAE)/g DW, exceeding the amounts in the two major cereals, rice and wheat. GB ranged between 0.41-1.40 mg/g DW. The total vitamin E contents and GB typically exceeded those in corn. ABA ranged as 8.50 - 235.46 ng/g dry weight (DW), with the highest inter-variety variability. The data confirm barley to be an excellent source of these nutraceuticals, generally better than other major cereals. Our results thus offer more detailed insights into the potential of barley as a functional food and suggests the need to investigate in depth the health effects of this grain as well as the contribution of genetic and environmental factors.

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Variability of Hordeum vulgare L. Cultivars in Yield, Antioxidant Potential, and Cholinesterase Inhibitory Activity

Cited by 20 publications

References 31 publications

Identification of Polyphenols from Coniferous Shoots as Natural Antioxidants and Antimicrobial Compounds

Identification of Polyphenols from Coniferous Shoots as Natural Antioxidants and Antimicrobial Compounds

Exploring antimicrobial and antioxidant properties of phytocomponents from different anatomical parts of Prunus padus L

Evaluation of Diverse Barley Cultivars and Landraces for Contents of Four Multifunctional Biomolecules with Nutraceutical Potential

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