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Голубев, Ф. В.; Golubkina, Nadezhda; Gorbunov, Yu. N.

doi:10.1023/a:1025465106772

Cited by 13 publications

(3 citation statements)

References 2 publications

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“…The broad spectrum of onion activity is based on chemical composition. Onion contains vitamins, a broad spectrum of antibiotics, sugar complexes, sulfurous compounds, enzymes, glycosides, flavonoids, saponins, and minerals (Golubev et al, 2003). Reports of health benefits from onion include anticarcinogenic properties, antiplatelet activity, antiallergenic as well as antithrombotic activities, and antiasthmatic and antibiotic effects (Mogren et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

“…According to the current understanding, the health of a population is determined in many respects by the level of nutritional consumption of micronutrients. Mineral elements play a critical role in building body tissue and regulating numerous physiological processes (Golubev et al, 2003). Many factors influence the composition of these micronutrients in onion, such as soil characteristics, environmental and agronomic conditions, cultivar, and ripening stage.…”

Section: Introductionmentioning

confidence: 99%

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The antioxidant capacity and macroelement content of several onion cultivars

Mlček

Valšíková²,

Družbíková³

et al. 2015

Turk J Agric For

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The aim of this study was to determine the phosphorus, magnesium, sodium, potassium, and calcium contents, as well as the total phenolic content and antioxidant activity in white, yellow, and red onion varieties. It is evident from the results that the highest content of all of these macroelements except phosphorus was found in the cultivar Fireball. In this cultivar, the phosphorus content was the lowest of all cultivars. The total phenolic content ranged from 1.17 to 2.10 g of gallic acid equivalents kg -1 and the antioxidant capacity ranged from 1.26 and 1.86 g of ascorbic acid equivalents kg -1 of fresh weight and was slightly higher in red onion cultivars than in white and yellow cultivars. The significant influence of color was determined by total phenolic content, antioxidant capacity, and macroelements except phosphorus (P < 0.05). While the season had influence on phosphorus and potassium content and on antioxidant capacity, the growing season significantly influenced the total phenolic content of the onions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The antioxidant capacity and macroelement content of several onion cultivars

Mlček

Valšíková²,

Družbíková³

et al. 2015

Turk J Agric For

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“…Современными исследованиями доказано, что тиосульфинаты совместно с сапонинами и фенольными веществами проявляют выраженную антимикробную, антиоксидантную, гиполипидемическую и противодиабетическую активность (Lanzotti, 2005;Rose et al, 2005;Benkeblia, 2007;Moriarty et al, 2007). Выявлена способность луков к аккумуляции различных микроэлементов, прежде всего железа и селена (Golubev et al, 2003a;Shirshova et al, 2011). Поэтому виды Allium активно изучаются в природных популяциях и в культуре как потенциальные источники биологически активных соединений, макро-и микроэлементов (Tukhvatullina, Abramova, 2012;Ivanova et al, 2019).…”

Section: Introductionunclassified

Bioactive compounds in the aboveground part of hemiephemeroid onions (Allium L.)

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Кукушкина

2021

Trudy po prikladnoy botanike, genetike i selektsii

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Background. Representatives of the genus Allium L. are valuable food and medicinal plants that have long been used for nutrition and human health. Modern research has proved their high biological activity. Earlier, we investigated the aboveground organs of a number of wild onion species in the consumer ripeness phase. Higher content of secondary metabolites has been observed in the hemiephemeroid species A. aflatunense B. Fedtsch., A. microdictyon Prokh., and A. rosenbachianum Regel. The aim of this work was to determine the content of bioactive compounds in the green biomass of Allium species during flowering.Materials and methods. We studied the freshly harvested raw materials – leaves and flower scapes. Dry matter content was measured by drying 1 g of raw material at 100–105°C to constant weight. The amounts of phenolic compounds, pectic substances, total sugars and carotenoids were assessed spectrophotometrically using the SF-56 (Russia) and SF Agilent 8453 (USA) instruments, and ascorbic acid was measured by the titrimetric method. The result was taken as an average of three measurements for each indicator calculated on absolute dry weight of raw material (except ascorbic acid).Results and conclusions. The green biomass of Allium species was found to contain 8,2–16,2% of dry matter; 4,5–12,0% of phenolics (catechins, flavonols and tannins); 6,9–32,4% of total sugars; 9,5–12,6% of pectic compounds (pectins and protopectins); 20,8–102,5 mg% of carotenoids, and 38,0–197,7 mg% of ascorbic acid (wet weight). A significant range of variation in the content of secondary metabolites was due to the species’ characteristics and weather conditions of the growing season. A. microdictyon had a higher content of dry matter, flavonols and tannins, whereas A. aflatunense and A. rosenbachianum were rich in ascorbic acid and sugars. The findings testify to the prospects of using Allium spp. as a source of bioactive compounds.

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