Variety-based research on the phenolic content in the aerial parts of organically and conventionally grown buckwheat

Žvikas, Vaidotas; Pukelevičienė, Vilma; Ivanauskas, Liudas; Pukalskas, Audrius; Razukas, Almantas; Jakštas, Valdas

doi:10.1016/j.foodchem.2016.07.010

Cited by 13 publications

(9 citation statements)

References 18 publications

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“…Pyra (Czech Republic). Our results are in agreement to data reported by Žvikas et al [30], who determined 0.05-0.32 mg/g d.w. of neochlorogenic acid in buckwheat flowers. However, at the same time, these authors determined in buckwheat flowers a higher content of chlorogenic acid (1.9-5.4 mg/g d.w.) compared to our values.…”

Section: Flavonoids and Phenolic Acids In Flowerssupporting

confidence: 94%

Section: Flavonoids and Phenolic Acids In Buckwheat Leavesmentioning

confidence: 99%

“…Žvikas et al [30] determined in buckwheat leaves 0.21-2.80 mg/g d.w. of neochlorogenic acid and 0.02-0.13 mg/g of chlorogenic acid. Our results are similar to those of Žvikas et al [30]. Significantly lower values of chlorogenic acid content are reported in different buckwheat cultivars from China, Japan, and Korea 58 and 72 days after sowing [31].…”

Section: Flavonoids and Phenolic Acids In Buckwheat Leavesmentioning

confidence: 99%

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Concentrations of Phenolic Acids Are Differently Genetically Determined in Leaves, Flowers, and Grain of Common Buckwheat (Fagopyrum esculentum Moench)

Vollmannová

Musilová

Lidiková

et al. 2021

Plants

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Common buckwheat (Fagopyrum esculentum Moench) is a valuable source of proteins, B vitamins, manganese, tryptophan, phytochemicals with an antioxidant effect, and the natural flavonoid rutin. Due to its composition, buckwheat supports the human immune system, regulates blood cholesterol, and is suitable for patients with diabetes or celiac disease. The study aimed to compare the allocation of selected phenolic acids (neochlorogenic acid, chlorogenic acid, trans-caffeic acid, trans-p-coumaric acid, trans-sinapic acid, trans-ferulic acid) and flavonoids (rutin, vitexin, quercetin, kaempferol) in the leaves, flowers, and grain of buckwheat cultivars of different origin. The content of individual phenolics was determined by the HPLC-DAD method. The results confirmed the determining role of cultivar on the relative content of chlorogenic acid, trans-caffeic acid, trans-sinapic acid, vitexin, and kaempferol in buckwheat plants. A significantly negative correlation among concentrations of phenolic acids in different common buckwheat plant parts shows that there are different mechanisms of genetic influences on the concentration of phenolic substances in common buckwheat flowers, leaves, and grain. These differences should be taken into account when breeding buckwheat for a high concentration of selected phenolic substances.

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Section: Flavonoids and Phenolic Acids In Flowerssupporting

confidence: 94%

Section: Flavonoids and Phenolic Acids In Buckwheat Leavesmentioning

confidence: 99%

Section: Flavonoids and Phenolic Acids In Buckwheat Leavesmentioning

confidence: 99%

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Concentrations of Phenolic Acids Are Differently Genetically Determined in Leaves, Flowers, and Grain of Common Buckwheat (Fagopyrum esculentum Moench)

Vollmannová

Musilová

Lidiková

et al. 2021

Plants

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“…A flavonoid assay was carried out according to a previously reported Reversed-phase High-performance liquid chromatography Photo-diode array analysis (RP-HPLC-PD) protocol [46]. An assay of D-fagomine was carried out on an Acquity H-class Ultraperformance liquid chromatography (UPLC) system (Waters, Milford, CT, USA) equipped with Cortecs HILIC 1.6 µm, 2.1 mm × 100 mm (Waters, Milford, CT, USA) column.…”

Section: Analysis Of Flavonoid and Fagomine Amountmentioning

confidence: 99%

Changes in Agricultural Performance of Common Buckwheat Induced by Seed Treatment with Cold Plasma and Electromagnetic Field

et al. 2021

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The aim of this study was to determine the effects of pre-sowing seed treatment with cold plasma (CP) and an electromagnetic field (EMF) on the agricultural performance of two cultivars of common buckwheat (Fagopyrum esculentum Moench)—‘VB Vokiai’ and ‘VB Nojai’. For this, the effects of CP and EMF on seed germination, plant growth in the field, photosynthetic efficiency, biomass production, seed yield, and the amount of secondary metabolites and minerals in the harvested seeds were estimated. Although the percentage of seedlings that emerged under field conditions decreased by 11–20%, seed treatments strongly improved buckwheat growth and yield. Irrespective of differences in the dynamics of changes in the growth and photosynthetic activity between the two cultivars, the weight of seeds collected per plant for both cultivars was significantly higher (up to 70–97%) compared to the control. The biochemical composition of the harvested seeds (Fe, Zn, quercetin content) was also altered by seed treatments. Thus, pre-sowing treatment of buckwheat seeds with CP and EMF substantially stimulated plant growth in the field, increased biomass production, seed yield and nutritional quality. The results obtained strongly support the idea that plant seed treatment with physical stressors has great potential for use in agriculture.

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“…Also, moderate consumption may have some beneficial effects on human health due to the high antioxidant activity of wine . However, the phenolic content in wine is quite variable depending on a series of factors, including grape variety , grape ripeness , environment , processing and storage conditions . Because of such variability and its significant effect on the bitter taste of wine, wineries are routinely faced with the measurement of total phenol content and bitterness.…”

Section: Introductionmentioning

confidence: 99%

Fast and Simultaneous Determination of Antioxidant Activity, Total Phenols and Bitterness of Red Wines by a Multichannel Amperometric Electronic Tongue

et al. 2017

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An electronic tongue based on a flow injection system equipped with a multichannel amperometric detector was used to determine the antioxidant activity, total phenols and bitter taste of red wines. The detector composed of four glassy carbon electrodes, arranged in a square configuration, where two parallel electrodes (poised at E1=+400 and E2=+800 mV) were followed by other two electrodes (poised at E3=+800 and E4=−400 mV). This configuration allowed to gain information on the content of the antioxidants activity (E1) and total phenols (E2 and E3). E1/E2 was used to express the proportion of strong vs. weak antioxidants. E3/E4 was used to express an index of reversibility. Finally, the ratio E2/E3 was used to control the system. Overall, the four electrodes led to seven variables, which provided a characteristic pattern profile. The eleven variables in total were analyzed by principal component analysis (PCA) to determine, the antioxidant activity, total phenol content and bitterness value of red wine samples. The results of antioxidant activity were correlated with the Folin Ciocalteu index (R2=0.94). Bitterness was correlated with the descriptors of the e‐tongue (R2=0.81). Overall, the analysis with the proposed electronic tongue is simple (only a dilution is required), fast (the analysis takes less than 20 seconds per sample), objective (precision within 5 %, expressed as RSD%) and cheap compared to classical sensory analysis.

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Variety-based research on the phenolic content in the aerial parts of organically and conventionally grown buckwheat

Cited by 13 publications

References 18 publications

Concentrations of Phenolic Acids Are Differently Genetically Determined in Leaves, Flowers, and Grain of Common Buckwheat (Fagopyrum esculentum Moench)

Concentrations of Phenolic Acids Are Differently Genetically Determined in Leaves, Flowers, and Grain of Common Buckwheat (Fagopyrum esculentum Moench)

Changes in Agricultural Performance of Common Buckwheat Induced by Seed Treatment with Cold Plasma and Electromagnetic Field

Fast and Simultaneous Determination of Antioxidant Activity, Total Phenols and Bitterness of Red Wines by a Multichannel Amperometric Electronic Tongue

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