1H NMR Analysis of the Aqueous-Alcoholic Mixtures, Prepared in Demineralized by Reverse Osmosis Water

Kuzmin, Oleg; Topolnik, V; Fatiukha, A; Volkova, G. I.

doi:10.15550/asj.2014.08.235

Cited by 6 publications

(5 citation statements)

References 7 publications

(6 reference statements)

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“…38 Kuzmin et al reported the thermodynamic equilibrium of ethanol and water in spirits by means of 1 H NMR spectroscopy. 39,40 Some components affecting the water-ethanol structure in spirits were reported. 41 The solvation of metal ions was reported with aged Shochu in earthenware vessel.…”

Section: Hydrogen-bonding Structure Of Water-ethanol In Spiritsmentioning

confidence: 99%

Components in water reduce the alcohol-stimulative taste of spirits

Nose¹

2021

MOJFPT

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Effects of solutes on the stimulative taste of ethanol in transparent spirits such as vodkas were reviewed. It was demonstrated that MgCl2, MgSO4, and NaHCO3 could reduce the alcohol-stimulative taste of spirits and, at the same time, strengthen the hydrogen-bonding structure of water-ethanol in spirits. It was suggested the reduction of the alcohol-stimulative taste is related with a change of the hydrogen-bonding structure in spirits by proton nuclear magnetic resonance (1H NMR) spectroscopy. These salts in spirits seem to be originated in water added to spirits before bottling. Some salts in water could affect the stimulative taste of ethanol in spirits.

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Section: Hydrogen-bonding Structure Of Water-ethanol In Spiritsmentioning

confidence: 99%

Components in water reduce the alcohol-stimulative taste of spirits

Nose¹

2021

MOJFPT

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“…The most important stages in the production of vodka (Oliinyk et al, 2016(Oliinyk et al, , 2014Kuzmin et al, , 2015 [1][2][3][4][5][6][7] are the creation of water-alcohol mixtures (Kuzmin et al, 2013 [8][9][10][11][12][13][14] and processing them with activated carbon (Oliinyk et al, 2014;Mukhin et al, 2003Mukhin et al, , 2004 [2,15,16]. The quality of the activated carbon depends on the quality of the finished product (Mukhin et al, 2003(Mukhin et al, , 2004Petrov et al, 2004Petrov et al, , 2005 [15][16][17][18].…”

Section: Analysis Of Recent Researchs and Publicationsmentioning

confidence: 99%

Correlation between the quality indicators of activated coal in vodka technology

Shendrik¹,

Levandovskyi²,

Kuts³

et al. 2019

UJFS

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Introduction. The purpose of the publication is to establish correlation relations between the quality indicators of active coal (AC) used in the distillery production in vodka technology. Materials and methods. AC of natural origin, which is used for distillery production. Standard methods of determination and quantitative characteristics of AC quality indicators. Mathematical-statistical methods of research are linear correlation analysis based on the Pearson correlation coefficient. Results and discussion. It was found that the correlation coefficient (r) between iodine adsorption activity (Ai.), which characterizes the amount and volume of micropore AC with diameter Dm<2 nm, including nanopor with diameter Dm<1 nm, and methylene blue (Am.b.), which depends on the mesopore volume with a diameter Dme=2…50 nm, is equal to 0.93. The total volume of the micro-and mesoporous space determines the total sorption capacity of AC relative to the organic impurities present in the water-alcohol mixtures. AC's sorption activity also depends on its fractional composition. The correlation (reverse dependence) between adsorption activity on acetic acid (Aa.a.) and the mass fraction of the sorbent residue on a screen with a cloth №10 (F№10) with a coefficient r=-0,94 was established. Reducing the mass fraction of the residual on a screen with a cloth from 97…98% to 62…64% leads to an increase in adsorption activity of AС by acetic acid to 117 ml versus 62 ml. This is directly due to the fact that the residual sorbent on the sieve № 10 has a large area of the surface of the microporous and mesoporous space due to the reduced size of the grains. The total volume of sorbents in water (Tp.v.) is directly proportional to the mass fraction of water soluble ash (Mw.a.) r=0.92 and the mass fraction of moisture (Mm.) at r=0.99. In order to release AC from water soluble ashes and increase the volume of pore space, it will be logical to wash the prepared AC with water and then dry it to the water content in the coal to 2%. It was established that the fractional composition, the mass of the residue on the sieve with canvas № 36 (F№36) is directly dependent on the mass fraction of ash (Ma.) (r=0.91) and the mass fraction of water soluble ash (Mw.a.) (r=0.91), which indirectly indicates the influence of inorganic components AC on its mechanical strength. It is assumed that in the largest fractions of AC with a mass of the residue on the sieve with canvas № 36 (F№36=2.1%) contains more ash in the macropore space (Ma=5.12%), including water soluble ash (Mw. a.=1.95%). Conclusions. As a result of the analysis of standard quality indicators AB and the study of their mutual dependencies using the mathematicalstatistical method using the Pearson correlation coefficients, it has been found that 92% (12 out of 13) indicators have strong internal relationships that are characterized by a "very high" correlation force with coefficients r=0.90-0.99.

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“…The preliminary conducted 1 H NMR studies, which are described in a work (Kuzmin O. et al, 2013 [21][22][23][24], relate to the study of hydroxyl protons of AAM modifications in the process of making vodkas. The obtained results give grounds to assert a fundamental difference in the behavior AAM prepared from the alcohol and water passing through various processes.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, in the work (Kuzmin O. et al, 2013 [21][22][23][24] was established experimental evidence of stationary nature / (non-stationary) of thermodynamic balance, taking into account the organoleptic characteristics of AAM in dependence on water treatment method and time of system's functioning. However, the questions related to internal mechanism's specification and the rate of establishment of thermodynamic balance depending on type of water used in the process of creating the AAM are remain unsolved.…”

Section: Introductionmentioning

confidence: 99%

“…(Kuzmin et al, 2013 [21][22][23][24]: -0,3 ml of vodka prepared with a volumetric pipette with a predetermined strength (40,0 ± 0,2)% vol. External standard separated from the testing substance which is required for deuterium stabilization system of spectrometer (deuterium solvent acetone-d 6 ) is added into an ampoule in a special form capillary.…”

Section: Introductionmentioning

confidence: 99%

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