Evaluation of phenolic antioxidant content in organically and conventionally grown buckwheat herb crop and its regrowth

Žvikas, Vaidotas; Pukelevičienė, Vilma; Ivanauskas, Liudas; Romanovskaja, Danuta; Jakštas, Valdas

doi:10.1002/jsfa.8176

Cited by 6 publications

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the data of our buckwheat leaf and flower extract suppliers [ 10 ] and literature [ 6 , 11 – 14 ], biologically active compounds were identified in the buckwheat leaf and flower extracts. The list of the compounds and their concentrations is provided in Table 1 .…”

Section: Methodsmentioning

confidence: 99%

The Effects of Buckwheat Leaf and Flower Extracts on Antioxidant Status in Mouse Organs

Sadauskienė

Liekis

Bernotienė

et al. 2018

Oxidative Medicine and Cellular Longevity

View full text Add to dashboard Cite

This study was undertaken to investigate the effects of the extracts of buckwheat leaf and flower on the antioxidant status of the brain and liver tissue. The administration of buckwheat extracts (both concentrations were 10%) to mice (at the dose 10 mL/kg of body weight) for 21 days significantly decreased superoxide dismutase (SOD) activity and reduced the amount of glutathione (GSH) and malondialdehyde (MDA) in the mouse brain, while catalase (CAT) activity significantly increased. In the mouse liver, the amount of GSH and activity of SOD increased, while the CAT activity after administering buckwheat leaf and flower extracts was lower in experimental mice than in the control group. However, the administration of 10% ethanol (for 21 days) to control animals also had a significant effect on the antioxidant system in brain and liver cells. Experimental animals demonstrated rather marked changes in the activities of the antioxidant enzymes SOD and CAT in their liver and brain cells, and changes in the levels of GSH and MDA were observed when compared with the control group.

show abstract

Section: Methodsmentioning

confidence: 99%

The Effects of Buckwheat Leaf and Flower Extracts on Antioxidant Status in Mouse Organs

Sadauskienė

Liekis

Bernotienė

et al. 2018

Oxidative Medicine and Cellular Longevity

View full text Add to dashboard Cite

show abstract

“…Moreover, buckwheat grains contain from 5% to 11% of fibre. The soluble fraction ranges from 3% to 7%, while the insoluble fraction is from 2% to 4% Vojtíšková et al, 2012;Górecka et al, 2014;Wang et al, 2017). Dietary fibre has a positive physiological effect on the gastrointestinal tract and also significantly influences the metabolism of other nutrients (Giménez-Bastida et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Buckwheat grains and hulls consist of a number of components with pro-health properties and biological activity, i.e. flavonoids and flavones, phenolic acids, condensed tannins, phytosterols and fagopyrins (Vojtíšková et al, 2012;Dziedzic et al, 2015;Klepacka, 2015;Žvikas et al, 2016). Buckwheat groats contain free phenolics (4.5-17.1 mg of gallic acid (GA) equivalent g -1 ).…”

Section: Introductionmentioning

confidence: 99%

Abiotic stress affects the yield and nutrients of buckwheat grains

Podolska

Górecka

Russel

et al. 2019

Zemdirbyste-Agriculture

View full text Add to dashboard Cite

The accumulation of valuable nutrients in grains is dependent on a number of factors, including biotic and abiotic stress, and the effects of herbicides. The aim of this study was to determine the effect of a metazachlor and clomazone mixture and 2-methyl-4-chlorophenoxyacetic acid (MCPA) on the chemical composition of the neutral detergent fibre, lipids, protein and ash content of common buckwheat (Fagopyrum esculentum Moench) seeds. A field experiment was conducted in 2013-2015. The mixture containing metazachlor (750 g ha -1 ) and clomazone (96 g ha -1 ) applied one day after buckwheat sowing proved to be phytotoxic and caused leaf chlorosis. These symptoms persisted until the end of the flowering stage and gradually disappeared during the seed formation stage. MCPA applied at the stage of two true leaves at a dose of 750 g ha -1 showed a higher phytotoxic effect, manifested by deformation and discoloration of the buckwheat stems. MCPA as well as mixture containing metazachlor and clomazone significantly increased the content of neutral detergent fibre (NDF), its fractions (hemicellulose, cellulose and lignin) and proteins compared with the control treatment. However, they caused a significant decrease in the ash content. Compared to the untreated control buckwheat seeds, application of MCPA caused an increase in the content of the following compounds: neutral detergent fibre (1.2%), hemicellulose (0.8%), cellulose (11.1%), lignin (0.6%) and protein (2.03%); mixture metazachlor and clomazone increase: neutral detergent fibre (0.8%), hemicellulose (0.5%), cellulose (11.3%), lignin (0.43%) and protein (0.60%). Each of the surveyed phytotoxic substances caused stress to buckwheat plants, with MCPA applied in the stage of two true leaves at a dose of 750 g ha -1 being the most aggressive stressor that caused deformation of the buckwheat plants, decreased yield (0.68 t ha -1 ) and increased protein content (2.03%) in the buckwheat grains.

show abstract

“…[10,19]. The parameters evaluated were: macroscopic characters; loss on drying, %; total ashes% [2]; content in total polyphenols expressed as chlorogenic acid% [8,20]; content in total flavonoids expressed as rutin% [3]; content in total protein% [5]; content in fatty oil% [14] and mineral content [ppm]/100g of product [17,18]. Reagents.…”

Section: Methodsmentioning

confidence: 99%

“…The microbiological characterization of the three samples of the buckwheat seeds powder product from the point of view of microbial contamination was carried out in accordance with the regulations of the European Pharmacopoeia 9 th Ed. [1,10,20]. Reagents used, culture mediums and solutions for determining the total number of aerobic microorganisms (TAMCs) were: casein soya bean digest agar, buffered sodium chloride broth pH = 7.0; for the determination of the total number of yeasts and filamentous fungi (TYMC): Sabouraud agar with dextrose, buffered sodium chloride broth pH = 7.0; for the isolation and identification of gram-negative bacteria-tolerant bile salts: Enterobacteria enrichment broth (Mossel), violet red bile glucose agar, casein soya bean digest broth.…”

Section: Methodsmentioning

confidence: 99%

Quality and Safety Attributes of Acclimated Species Fagopyrum Esculentum Moench

Khaled¹

2018

FARMACIA

View full text Add to dashboard Cite

The aim of this study was the characterization of the buckwheat seeds (Fagopyrum esculentum Moench.) powder derived from a Ukrainian species acclimated in Southern Romania, in terms of physicochemical and microbiological characterization and also the nutritional attributes, in order to develop finished products as dietary supplements with this naturally active ingredient. The results obtained from the physicochemical and microbiological analysis of the samples of Fagopyrum esculentum Moench. demonstrated that they are within the limits of admissibility stipulated by the 9 th European Pharmacopoeia and the literature. To highlight the attributes of the nutritional profile and quality in the view of ensuring a high level of consumer health protection, the energy value of Buckwheat seeds powder -Fagopyrum esculentum Moench. was determined in accordance with EU Regulation 1169/ 2011. RezumatObiectivul acestui studiu a fost caracterizarea pulberii din semințe de hrișcă (Fagopyrum esculentum Moench.) obținută din materialul al plantei aclimatizate în sudul României, rezultată din semințe provenind din Ucraina. Studiul a inclus determinări fizico-chimice și microbiologice precum și atributele nutriționale cu intenția de a dezvolta suplimente alimentare conținând acest produs vegetal. Rezultatele obținute în urma analizelor fizico-chimice și microbiologice a pulberii din seminţe de Fagopyrum esculentum Moench. au demonstrat faptul că acestea se încadrează în limitele de admisibilitate prevăzute de Farmacopeea Europeană ediţia a 9-a și literatura de specialitate. Pentru a evidenția atributele valorii și calității nutriționale în vederea asigurării unui nivel ridicat de protecție a sănătății consumatorilor, valoarea energetică a pulberii din semințe de hrișcă -Fagopyrum esculentum Moench. a fost stabilită în conformitate cu reglementarea UE 1169/ 2011.

show abstract

Evaluation of phenolic antioxidant content in organically and conventionally grown buckwheat herb crop and its regrowth

Cited by 6 publications

References 8 publications

The Effects of Buckwheat Leaf and Flower Extracts on Antioxidant Status in Mouse Organs

The Effects of Buckwheat Leaf and Flower Extracts on Antioxidant Status in Mouse Organs

Abiotic stress affects the yield and nutrients of buckwheat grains

Quality and Safety Attributes of Acclimated Species Fagopyrum Esculentum Moench

Contact Info

Product

Resources

About