scholarly journals VITAMIN-MINERAL ISOTONIC DRINKS WITH SPIRULINA IN SPORTS NUTRITION

2020 ◽  
Vol 20 (3) ◽  
pp. 129-138
Author(s):  
G Gubanenko ◽  
M Kudriavtsev ◽  
E Rechkina ◽  
L Naimushina ◽  
L Mayurnikova

Aim. The paper is aimed at developing isotonic vitamin and mineral drinks with spirulina, fruits and Siberian berries. Materials and Methods. Spirulina microalgae (Royal Forest, TU 03.21.49-009-29903295-2017) was purchased at the Healthy Food Products specialized store. The physicochemical parameters of spirulina powder were determined in accordance with GOST 31412-2010. The mineral composition of spirulina was studied by atomic emission spectroscopy (AES) using the Thermo Scientific iCaP-6500 DUO spectrometer and the iTEVA software package. The determination of vitamin content was carried out in accordance with GOST and pharmacopoeial standards. Directions for creating isotonic vitamin and mineral drinks with spirulina, fruits and berries were determined based on organoleptic criteria. Results. The mineral composition of spirulina (Royal Forest) was determined, and the content of macro- and microelements in spirulina was correlated with physiological norms for satisfying daily demand of an adult. It is shown that microalgae are a source of iron and copper as the content of these minerals in 100 g of the product reaches 27.9 and 66.3 % of recommended daily intake, respectively. When studying the content of vitamins, it was found that thiamine and riboflavin showed the best indicators of ensuring daily demand of vitamins – 18.5 and 26.3 %, respectively. Based on the assessment of organoleptic properties, the recipes for isotonic vitamin and mineral drinks made of spirulina, fruits and berries are presented. Conclusion. It is shown that isotonic vitamin and mineral fruit and berry drinks with spirulina contain a vitamin-mineral complex and are characterized by increased nutritional and biological value. Such drinks can be recommended for extreme conditions and sports nutrition, including faster and better recovery after heavy physical exertion.

2020 ◽  
Vol 75 (1) ◽  
pp. 63-66
Author(s):  
A. A. Zhirkov ◽  
V. V. Yagov ◽  
A. A. Antonenko ◽  
A. S. Korotkov ◽  
B. K. Zuev

Author(s):  
Abbas Shebeeb Al-kadumi ◽  
Sahar Rihan Fadhel ◽  
Mohammed Abdullah Ahmed ◽  
Luma Amer Musa

We proposed two simple, rapid, and convenient spectrophotometric methods are described for the determination of Amoxicillin in bulk and its pharmaceutical preparations. They are based on the measurement of the flame atomic emission of potassium ion (in first method) and colorimetric determination of the green colored solution for manganite ion at 610 nm formed after reaction of Amoxicillin with potassium permanganate as oxidant agent (in the second method) in basic medium. The working conditions of the methods were investigated and optimized. Beer's law plot showed a good correlation in the concentration range of 5-45 μg/ml. The detection limits and relative standared deviations were (2.573, 2.814 μg/ml) (2.137, 2.498) for the flame emission photometric method and (1.844, 2.016 μg/ml) (1.645,1.932) for colorimetric methods for capsules and suspensions respectively. The methods were successfully applied to the determination of Amoxicillin in capsules and suspensions, and the obtained results were in good agreement with the label claim. No interference was observed from the commonly encountered additives and expectancies.


2018 ◽  
Vol 84 (11) ◽  
pp. 9-14
Author(s):  
E. S. Koshel ◽  
V. B. Baranovskaya ◽  
M. S. Doronina

The analytical capabilities of arc atomic emission determination of As, Bi, Sb, Cu, Te in rare earth metals (REM) and their oxides after preparatory group concentration using S,N-containing heterochain polymer sorbent are studied on a high-resolution spectrometer “Grand- Extra” (“WMC-Optoelectron-ics” company, Russia). Sorption kinetics and dependence of the degree of the impurity extraction on the solution acidity are analyzed to specify conditions of sorption concentration. To optimize the procedure of arc atomic emission determination of As, Bi, Sb, Cu, and Te various schemes of their sorption preconcentration and subsequent processing of the resulted concentrate with the addition of a collector at different stages of the sorption process have been considered. Graphite powder is used as a collector in analysis of rare earth oxides due to universality and relative simplicity of the emission spectrum. Conditions of analysis and parameters of the spectrometer that affect the analytical signal (mass and composition of the sample, shape and size of the electrodes, current intensity and generator operation mode, interelectrode spacing, wavelengths of the analytical lines) are chosen. The evaporation curves of the determinable impurities were studied and the exposure time of As, Bi, Sb, Cu, and Te in the resulted sorption concentrate was determined. Correctness of the obtained results was evaluated using standard samples of the composition and in comparisons between methods. The results of the study are used to develop a method of arc chemical-atomic emission analysis of yttrium, gadolinium, neodymium, europium, scandium and their oxides in a concentration range of n x (10-2 - 10-5) wt.%.


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