scholarly journals Effect of foliar sodium selenite biofortification on cauliflower yield, nutritional value and antioxidant status

2020 ◽  
pp. 63-68
Author(s):  
M. S. Antoshkina ◽  
N. A. Golubkina ◽  
L. L. Bondareva
Keyword(s):  
Nutritional Value ◽  
Sugar Content ◽  
Sodium Selenate ◽  
Agricultural Crops ◽  
Selenium Status ◽  
Selenium Content ◽  
Ascorbic Acid Concentration ◽  
Consumption Level ◽  
Selenium Accumulation ◽  
Different Doses

Relevance. Biofortification of agricultural crops with selenium is considered to be the most promising method for the human selenium status optimization.Methods. Effect of foliar biofortification of cauliflower, Polyarnaya Zvezda cv, with sodium selenate of different concentrations on yield, selenium content and biochemical characteristics of plants were investigated.Results. Enrichment of plants with selenium increased yield by 1.23-1.31 times, sugar content – 1.6 times, ascorbic acid concentration – 1.52-2 times. On the contrary, the treatment did not affect pholyphenol content and antioxidant activity of ethanolic extracts of plants. Selenium accumulation levels decreased according to inflorescences > leaves > roots. Sodium selenate solution at 75 mg/L concentration increased mass of cauliflower leaves 1.9 times and roots – 1.5 times. Consumption of 100 g of cauliflower fortified with 50 mg/L sodium selenate solution provided 100% of the daily adequate selenium consumption level. Utilization of higher sodium selenate concentrations ensured 127% and 418% of the daily adequate consumption level in case of 75 mg/L and 100 mg/L concentrations respectively. Taking into account insignificant differences between sugar content and antioxidants in cauliflower inflorescences fortified with different doses of selenium the most suitable concentration to be used was 50 mg/L.

scholarly journals PROSPECTS OF PRODUCTION OF ALLIUM SEEDS SPROUTS FORTIFIED WITH SELENIUM

2018 ◽  
pp. 50-54
Author(s):  
N. A. Golubkina ◽  
T. M. Seredin ◽  
H. A. Baranova ◽  
L. V. Startseva ◽  
A. F. Agafonov ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Functional Food ◽  
Nutritional Value ◽  
Allium Fistulosum ◽  
Agricultural Crops ◽  
Selenium Content ◽  
Polyphenol Content ◽  
Allium Species ◽  
Carcinogenic Activity ◽  
High Selenium

Sprouts of agricultural crops seeds are considered to be functional food products with high content of antioxidants. Though seeds of Allium species plants are used in some countries as spices the possibilities of appropriate sprouts utilization have never been investigated so far. Evaluation of perennial and A. cepa seeds biofortification with selenium revealed high nutritional value of the resulting sprouts characterized not only by high selenium content exclusively in a form of selenomethyl selenocysteine (a natural anti carcinogen) but also with high levels of antioxidant activity and high polyphenol content. It was demonstrated that among seven studied representatives of Allium species Allium cepa variety Krasnoye krugevo and perennial onion Allium fistulosum give seeds sprouts with the highest levels of selenium (10500-11000 μg/kg d.w.), polyphenols (9.3-10.8 mg-eq GA/g d.w) and the largest values of antioxidant activity (14.7-17.1 mg-eq GA/g d.w.). Utilization of one g of dried seeds sprouts powder, fortified with selenium provides up to 15.7% of the adequate consumption level of selenium exclusively in a form of selenomethyl selenocysteine possessing powerful anti carcinogenic activity.

scholarly journals Comparative evaluation of antioxidant characteristics and selenium levels in seeds of Cichorium intybus L. and several representatives of Apiaceae plants

2021 ◽  
pp. 69-74
Author(s):  
N. A. Golubkina ◽  
V. A. Zayachkovsky ◽  
I. V. Smirnova ◽  
O. M. Vyutnova ◽  
V. A. Kharchenko ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Comparative Evaluation ◽  
Antioxidant Status ◽  
Nutritional Value ◽  
Agricultural Crops ◽  
Polyphenol Content ◽  
Selenium Accumulation ◽  
Total Antioxidant ◽  
Antioxidant Characteristics ◽  
Comparison Of The Results

Relevance. Evaluation of nutritional value of seeds of agricultural crops is considered to be highly significant for revealing new sources of antioxidants for humans.Material. The aim of the present investigation was antioxidant status and selenium accumulation levels by chicory seeds (13 cultivars) and comparison of the results with antioxidants status of seeds of other root vegetables: celery (5 cultivars), parsley (2 cultivars), parsnip (3 cultivars) and carrot (7 cultivars).Results. Among agricultural crops studied chicory was characterized by 3-4 higher levels of selenium accumulation by seeds and relatively low total antioxidant activity and polyphenol content. Anomalously high protein content in chicory seeds may explain the efficiency of selenium accumulation while relatively low antioxidant activity may be connected with lower levels of essential oil. Direct correlations between polyphenol content and total antioxidant activity were demonstrated for carrot (r=+0.924; P<0.01) and chicory (r= 0.803; P<0.01) seeds.

scholarly journals Selenium Biofortification of Wheat as a Strategy to Improve Human Nutrition

Agriculture ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 144
Author(s):  
Aleksandra Radawiec ◽  
Wiesław Szulc ◽  
Beata Rutkowska
Keyword(s):  
Spring Wheat ◽  
Foliar Application ◽  
Stem Elongation ◽  
Sodium Selenate ◽  
Control Group ◽  
Selenium Content ◽  
Wheat Grain ◽  
Elongation Phase ◽  
Fertilisation Treatment ◽  
Foliar Fertilisation

This paper analyses the effects of soil and foliar fertilization with sodium selenate (VI) on the selenium content in spring wheat grain. The research was carried out at the Departmental Experimental Station of the Institute of Agriculture WULS in Skierniewice in 2018 and 2019. The dose of selenium used was 5.00 g Se·ha−1 in various development stages of spring wheat. The results showed that selenium fertilisation did not affect the size of the grain yield, but both soil and foliar fertilisation significantly increased the content of selenium in wheat grain compared to the control group. The highest Se content was obtained with the method of soil fertilisation combined with the foliar application with a total dose of 10.00 g·ha-1 Se in the stem elongation phase (S + F2), and in the tillering and stem elongation phase (S + F1 + F2), which resulted in the values of 0.615 and 0.719 mg·kg−1 Se in grain, respectively. On this basis, it was concluded that the best time to carry out foliar fertilisation treatment is in the stem elongation phase (BBCH 30–39). The results show that the greatest increase in selenium content in the grain is achieved with soil and foliar fertilisation combined.

scholarly journals PHYSICO-CHEMICAL CHARACTERIZATION OF COCONUT ECOTYPES IN BENIN COASTAL ZONE

2021 ◽  
Vol 9 (8) ◽  
pp. 215-225
Author(s):  
Ulysse Ayihaou Daa-Kpode ◽  
Patrice Hodonou Avogbe ◽  
Gustave Djedatin ◽  
Daniel Datchiglo ◽  
Aristide Bakpe ◽  
...  
Keyword(s):  
Coastal Zone ◽  
Nutritional Value ◽  
Ph Value ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Chemical Characterization ◽  
Titratable Acidity ◽  
Total Sugar Content ◽  
Physico Chemical

Coconut water is highly consumed for refreshment due to its nutritional value. However, its nutritional value varies according to the ecotype and stage of maturity of ecotype. In order to identify best ecotypes with high nutritious value, a physico-chemical composition of ten (10) ecotypes was performed at earlier stage of maturity (3 months). The measured parameters were: coconut height, mass of water, total sugar content, soluble sugar content, protein, titratable acidity and pH.  The obtained results showed that all parameters vary from one ecotype to another. All coconut ecotypes contain water slightly acid with a pH value less than 7.  Furthermore, there is no relationship between physical and biochemical parameters. However, within characterized ecotypes, Ecotype_2, appeared to have the best biochemical composition with a significant amount of water. This study provided important informations related to physico-chemical characteristics of coconuts ecotypes found in the coastal zone.

scholarly journals NUTRITIONAL COMPOSITION AND LIPID CONTENT OF SKIN AND MUSCLE OF WILD GIANT MOTTLE EELS ANGUILLA MARMORATA IN THUA THIEN HUE, VIETNAM

2020 ◽  
Vol 129 (3C) ◽  
Author(s):  
Kieu Thi Huyen ◽  
Nguyen Quang Linh
Keyword(s):  
Lipid Content ◽  
Nutritional Value ◽  
Sugar Content ◽  
Nutritional Composition ◽  
Human Consumption ◽  
Fish Skin ◽  
Total Sugar Content ◽  
Fish Meat ◽  
Anguilla Marmorata ◽  
Nutritional Components

In Vietnam, the giant mottle eel Anguilla marmorata is the most widely distributed species and being exploited for seed in aquaculture as well as for human consumption. This study aims to investigate the basic nutritional components of the fish. The eels were collected from six locations of Thua Thien Hue province, with weights from 5 to 3200 g. In addition, the content of lipid in skin and tissue was also examined. The results show that eel flesh has a relatively high nutritional value. The water, protein, lipid, and total sugar content of the fish meat is 60.4 ± 0.94%, 19.54 ± 4.31%, 18.2 ± 1.02%, and 1.34 ± 0.34 (mg/g), respectively. The nutritional components of the eel have a good correlation with the weight according to the equation: Y = a × ln (W) + b (where W is the weight of eels; Y is the content of nutritional components; a is the correlation coefficient b is a constant) with r > 0.9. The lipid content of the fish skin is higher than that of muscle and meat.

scholarly journals Impact of sodium-selenate on the growth of radish (Raphanus sativus L.) seedlings in vitro

2005 ◽  
Vol 11 (2) ◽  
Author(s):  
É. Domokos-Szabolcsy ◽  
I. J. Holb ◽  
J. Prokisch ◽  
B. Kovács ◽  
Zs. Veres ◽  
...  
Keyword(s):  
Raphanus Sativus ◽  
Vascular Plants ◽  
Higher Plants ◽  
Sodium Selenate ◽  
Selenium Content ◽  
Physiological Properties ◽  
Raphanus Sativus L ◽  
Total Antioxidant ◽  
Do So

Selenium (Se) is an essential trace element for animals, microorganisms and some other Eukaryotes. It has become increasingly evident that Se plays a significant role in reducing the incidence of lung, colorectal and prostate cancer in humans. Although it is well known that some species among higher plants are able to accumulate selenium in their tissues, but others are not able to do so, and there is evidence that selenium is needed for the growth of algae, meanwhile the question of essentiality of Se in vascular plants is unresolved. We aimed to study the in vitro growing and to characterise some physiological properties in radish (Raphanus sativus L.) seedlings treated with 0 to 200 mg/1 sodium-selenate. The results showed that lower (2 mg/1) concentration sodium-selenate increased the biomass as well as the total antioxidant capacity of seedlings. The seedling's selenium content showed linear correlation with the sodium-selenate content of the medium.

scholarly journals Selenium Accumulation, Speciation and Localization in Brazil Nuts (Bertholletia excelsa H.B.K.)

Plants ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 289 ◽  
Author(s):  
Leonardo W. Lima ◽  
Gavin C. Stonehouse ◽  
Christina Walters ◽  
Ali F. El Mehdawi ◽  
Sirine C. Fakra ◽  
...  
Keyword(s):  
Nutritional Value ◽  
Daily Intake ◽  
Brazil Nut ◽  
Organic Form ◽  
Toxicity Threshold ◽  
Brazil Nuts ◽  
Important Variation ◽  
Selenium Accumulation ◽  
Daily Allowance ◽  
Serving Size

More than a billion people worldwide may be selenium (Se) deficient, and supplementation with Se-rich Brazil nuts may be a good strategy to prevent deficiency. Since different forms of Se have different nutritional value, and Se is toxic at elevated levels, careful seed characterization is important. Variation in Se concentration and correlations of this element with other nutrients were found in two batches of commercially available nuts. Selenium tissue localization and speciation were further determined. Mean Se levels were between 28 and 49 mg kg−1, with up to 8-fold seed-to-seed variation (n = 13) within batches. Brazil nut Se was mainly in organic form. While present throughout the seed, Se was most concentrated in a ring 1 to 2 mm below the surface. While healthy, Brazil nuts should be consumed in moderation. Consumption of one seed (5 g) from a high-Se area meets its recommended daily allowance; the recommended serving size of 30 g may exceed the allowable daily intake (400 μg) or even its toxicity threshold (1200 μg). Based on these findings, the recommended serving size may be re-evaluated, consumers should be warned not to exceed the serving size and the seed may be sold as part of mixed nuts, to avoid excess Se intake.

scholarly journals The Effect of Spent Mushroom Substrate and Cow Slurry on Sugar Content and Digestibility of Alfalfa Grass Mixtures

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
E. Malinowska ◽  
K. Jankowski
Keyword(s):  
Perennial Ryegrass ◽  
Dry Matter ◽  
Near Infrared ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Spent Mushroom Substrate ◽  
Dry Matter Digestibility ◽  
Orchard Grass ◽  
Cow Slurry ◽  
Different Doses

The aim of this paper is to evaluate the effect of different doses of spent mushroom substrate and cow slurry on sugar content and digestibility of hybrid alfalfa and grass mixtures. The main factors were different doses of organic material: mushroom substrate and slurry, and the following legume grass mixtures: M1-orchard grass (Dactylis glomerata), perennial ryegrass (Lolium perenne), and hybrid alfalfa (Medicago x varia T. Martyn); M2-orchard grass, hybrid alfalfa; M3-perennial ryegrass, hybrid alfalfa. In each growing season, the mixtures were harvested three times during three years of their full use. Sugar content and dry matter digestibility were determined with near-infrared spectroscopy (NIRS) using the NIRFlex N-500 spectrometer. Of all fertilizer treatments, the application of mushroom substrate at a dose of 20 t·ha−1 in combination with 40 m3 of slurry resulted in the best forage quality with its highest digestibility. In the mixture of perennial ryegrass and hybrid alfalfa increasing doses of mushroom substrate with decreasing doses of slurry lowered soluble sugar content and digestibility.

scholarly journals The defensive benefit and flower number cost of selenium accumulation in Brassica juncea

AoB Plants ◽  
2019 ◽  
Vol 11 (5) ◽  
Author(s):  
Janet C Steven ◽  
Alexander Culver
Keyword(s):  
Brassica Juncea ◽  
Pieris Rapae ◽  
Leaf Tissue ◽  
Plant Size ◽  
Sodium Selenate ◽  
Negative Effects ◽  
Flower Number ◽  
Specialist Herbivore ◽  
Selenium Accumulation ◽  
The Cost

Abstract Some plant species accumulate selenium in their tissues in quantities far above soil concentrations, and experiments demonstrate that selenium can serve as a defence against herbivores and pathogens. However, selenium may also cause oxidative stress and reduce growth in plants. We measured growth, selenium accumulation and herbivory in four varieties of the selenium accumulator Brassica juncea to investigate the cost of accumulation as well as its benefit in reducing herbivory. We measured selenium levels, plant size and flower number in four varieties of B. juncea watered with sodium selenate or treated as controls. We also conducted no-choice herbivory trials on leaves from both treatments with the specialist herbivore Pieris rapae. The selenate treatment slightly increased leaf number over the control, but tissue concentrations of selenium and flower number were negatively correlated in some varieties. In herbivory trials, leaves from the plants in the selenate treatment lost less leaf tissue, and the majority of larvae given leaves from selenate-treated plants ate very little leaf tissue at all. In the variety with the highest selenium accumulation, leaves from selenate-treated plants that showed reduced flower production also experienced less herbivory in feeding trials. The protective advantage of greater selenium accumulation may be offset by negative effects on reproduction, and the relatively low level of selenium accumulation in this species as compared to more extreme hyperaccumulators could reflect the minimum level necessary to enhance protection from herbivory.

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