Content of some antioxidants in intercropped maize and soybean grain

Dragičević, Vesna; Oljaca, I Snezana; Simić, Milena; Dolijanovic, K Zeljko; Kresovic, J Branka; Brankov, Milan

doi:10.2298/jas1701031d

Cited by 5 publications

(4 citation statements)

References 12 publications

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“…In regard, that higher sugars concentration in sweet maize kernel follow optimal precipitation amount [34], in this research the higher concentration of all three sugars was obtained in 2016 and 2017, as years with the a low to moderate precipitation quantity. However, low a precipitation level in July 2016, not only seriously affected the kernel yield, but also kernel chemical composition, particularly from the viewpoint of increased concentration of antioxidants (phenolics and YP) which are highly prone to variable conditions [35,36]. Concentration of essential elements: Mg, Fe, Mn, and Zn were also increased, together with decrease in Pphy and GSH concentration [37,38].…”

Section: Variability In Chemical Composition Of Sweet Maize Kernelmentioning

confidence: 99%

Enhanced Nutritional Quality of Sweet Maize Kernel in Response to Cover Crops and Bio-Fertilizer

et al. 2021

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Cover crops (CC) are an important low-input strategy in sustainable agricultural systems. The impact of different CC (common vetch, field pea, winter oats, fodder kale, common vetch + winter oats and field pea + winter oats), organic mulch, control treatment-fallow, and bio-fertilizer (BF) application, on yield and quality of sweet maize kernel was evaluated. CC biomass was higher in mixtures: field pea + winter oats, and common vetch + winter oats, as well as in fodder kale. Kernel yield and its chemical composition varied significantly by CC, BF, year, and their interaction. Organic mulch enhanced the concentration of sugars and glutathione in maize kernel. BF increased kernel yield, the concentration of sugars, vitamin C, Mg, Fe, Zn, and reduced phytate concentration. The highest Mg and Mn concentration in maize kernel was achieved with fodder kale, Zn concentration with common vetch + winter oats + BF, and Fe concentration with winter oats. The same treatments expressed the highest impact on variability in concentration of the phytate, phenolics, and yellow pigment, thus affecting further bio-availability of essential elements. Results indicate that in a semi-arid climate, under rain-fed conditions, CC such as fodder kale and winter oats + common vetch could enhance sweet maize productivity and kernel quality, serving as an important part of a sustainable cropping system, to facilitate food security.

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Section: Variability In Chemical Composition Of Sweet Maize Kernelmentioning

confidence: 99%

Enhanced Nutritional Quality of Sweet Maize Kernel in Response to Cover Crops and Bio-Fertilizer

et al. 2021

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“…It was proved that not just genotype, but year also play an important role in variability in the antioxidants content in grain of common and durum wheat, such as phytic acid and phenolic compounds (> 92%), although variability of YP was mainly dependable on genotype (BRANKOVIĆ et al, 2015). DRAGIČEVIĆ et al (2017) reported that interaction between production year/cropping management is very important for variability in content of different antioxidants in soybean grain, particularly in stressful environments. DPPH reduction capacity was at least prone to variation, with significant H×F, H×Y and H×F×Y interaction.…”

Section: Statistical Analysesmentioning

confidence: 99%

Variability in antioxidants in yellow, white, and red coloured maize grain in response to different fertilizers

et al. 2022

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Maize (Zea mays L.) grain is an important source of nutrients in human diet. The differences in content and relations between certain components of maize grain impact grain colour and its nutritional quality. The objective of the Study was to examine effects of different fertilization systems: mineral fertilizer (urea), organic fertilizer, and bio-fertilizer on white, yellow, and red coloured maize hybrids, regarding grain yield and variations in content of antioxidants: phytate, phenolic compounds, glutathione, carotenoids (yellow pigment), and reduction capacity of DPPH radical. Two-fold higher average grain yield and double fold lower concentration of phenols and carotenoids were present in 2018, in comparison to drier 2017. The lowest phytate content and the highest values of phenols and DPPH reduction capacity were present in red maize kernel, as a hybrid with the highest yield, while in yellow maize kernel, the highest values of yellow pigment and glutathione occurred. The bio-fertilizer expressed the positive impact on reduction of phytate concentration and increase of phenols concentration in maize grain, while urea increased concentration of yellow pigment and glutathione. Correlation analysis showed that reduction in phytate and carotenoids was significant and positive related with grain yield increase, while phenols showed positive correlation with reduction capacity of DPPH radical. Thus, it was shown that changes in fertilization methods could affect antioxidants status in maize grain, particularly in red coloured maize, which besides high yield potential, possess remarkable higher antioxidant capacity in regard to yellow and white coloured maize.

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“…Nevertheless, in some regions, the white kernel is mainly used for human nutrition. The synthesis of antioxidants is primarily driven by environmental factors and genotype × environment interactions; thus, stressful conditions could increase the concentration of antioxidants, such as glutathione, phenolics, yellow pigment, and phytic acid (Phy), in the crop’s vegetative parts and grains ( Brankovic et al., 2015 ; Dragičević et al., 2017 ; Saini and Keum, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Kernel color and fertilization as factors of enhanced maize quality

et al. 2022

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Maize is an important staple crop and a significant source of various nutrients. We aimed to determine the macronutrients, antioxidants, and essential elements in maize genotypes (white, yellow, and red kernel) using three different fertilizers, which could be used as a basis to increase the nutrient density of maize. The fertilizer treatments used bio- and organic fertilizers as a sustainable approach, urea, as a commonly used mineral fertilizer, and the control (no fertilization). We evaluated the yield, concentration of macronutrient (protein, oil, and starch), nonenzymatic antioxidants (phenolics, yellow pigment, total glutathione (GSH), and phytic phosphorus), and reduction capacity of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical, as well as essential elements that are commonly deficient in the diet (Mg, Ca, Fe, Mn, Zn, Cu, and S) and their relationships with phytic acid. The genotype expressed the strongest effect on the variability of grain yield and the analyzed grain constituents. The red-kernel hybrid showed the greatest accumulation of protein, oil, phenolics, and essential elements (Ca, Fe, Cu, and S) than a yellow and white hybrid, especially in the biofertilizer treatment. The yellow kernel had the highest concentrations of yellow pigment, GSH, phytic phosphorous, Mg, Mn, and Zn (19.61 µg g−1, 1,134 nmol g−1, 2.63 mg g−1, 1,963 µg g−1, 11.7 µg g−1, and 33.9 µg g−1, respectively). The white kernel had a greater starch concentration (2.5% higher than that in the red hybrid) and the potential bioavailability of essential metals, particularly under no fertilization. This supports the significance of white maize as a staple food in many traditional diets across the world. Urea was important for the enhancement of the antioxidant status (with 88.0% reduction capacity for the DPPH radical) and increased potential Zn bioavailability in the maize kernels (13.3% higher than that in the biofertilizer treatment). This study underlines the differences in the yield potential and chemical composition of red, yellow, and white-kernel maize and their importance as a necessary part of a sustainable human diet. This information can help determine the most appropriate genotype based on the antioxidants and/or essential elements targeted for kernel improvement.

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Content of some antioxidants in intercropped maize and soybean grain

Cited by 5 publications

References 12 publications

Enhanced Nutritional Quality of Sweet Maize Kernel in Response to Cover Crops and Bio-Fertilizer

Enhanced Nutritional Quality of Sweet Maize Kernel in Response to Cover Crops and Bio-Fertilizer

Variability in antioxidants in yellow, white, and red coloured maize grain in response to different fertilizers

Kernel color and fertilization as factors of enhanced maize quality

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