Two applications of the thermogram of the alcohol/water binary system with compositions of cryobiological interests

Weng, Lindong; Li, Weizhong; Zuo, Jinlong

doi:10.1016/j.cryobiol.2011.03.005

Cited by 11 publications

(9 citation statements)

References 26 publications

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“…The obtained T m (W) for water-glycerol mixture was in good correspondence with previously reported data(Bohon and Conway, 1972;Weng et al, 2011b). At W33.3% wt and T = 226.7 K water-glycerol mixtures shown eutectic point.…”

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confidence: 89%

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Application of differential scanning calorimetry to estimate quality and nutritional properties of food products

Parniakov

Bals

Barba

et al. 2016

Critical Reviews in Food Science and Nutrition

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Over the past years, both food researchers and food industry have shown an increased interest in finding techniques that can estimate modifications in quality, nutritional, and thermophysical properties of food products during processing and/or storage. For instance, differential scanning calorimetry (DSC) has attracted the interest of scientific community because only a small amount of sample is needed for analysis. Moreover, it does not require any specific sample preparation, and is a repeatable and reliable method. In addition, DSC methodology needs a short time for experiments compared with other techniques used for the same purpose. At this stage of investigation, there is a need to evaluate the commonly accepted and new emerging DSC applications to establish the optimum conditions of emerging processing. This paper reviews the current and new insights of DSC technique for the estimation of quality, nutritional, and thermophysical properties of food products during conventional and emerging processing and/or subsequent storage. The estimation of different properties in several food matrices after processing and/or storage is also discussed.

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confidence: 89%

“…It means that the water become more bound with a rising in the glycerol concentration (Parniakov et al, 2015). This fact can be explained by the ability of glycerol molecules to serve as -water blocker‖ (Weng et al, 2011b).…”

Section: Temperatures Of Phase Transitionsmentioning

confidence: 99%

Application of differential scanning calorimetry to estimate quality and nutritional properties of food products

Parniakov

Bals

Barba

et al. 2016

Critical Reviews in Food Science and Nutrition

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“…This article examines and evaluates some of the available theories for predicting water (i.e. solvent) chemical potential, in particular those that do not depend on multi-solute solution data.In cryobiology, water chemical potential is often expressed in terms of its composition dependence, osmolality [3,11,14,15,21,55,56,74], or in terms of the related properties freezing point depression [3,[14][15][16]21,38,[50][51][52]55,[74][75][76] and osmotic pressure [37,44,55,73]. Freezing point depression and osmotic pressure are physically measurable solution properties, and the relationships between them and osmolality (described below in Eqs.…”

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confidence: 99%

Comparison of non-ideal solution theories for multi-solute solutions in cryobiology and tabulation of required coefficients

et al. 2014

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Thermodynamic solution theories allow the prediction of chemical potentials in solutions of known composition. In cryobiology, such models are a critical component of many mathematical models that are used to simulate the biophysical processes occurring in cells and tissues during cryopreservation. A number of solution theories, both thermodynamically ideal and non-ideal, have been proposed for use with cryobiological solutions. In this work, we have evaluated two non-ideal solution theories for predicting water chemical potential (i.e. osmolality) in multi-solute solutions relevant to cryobiology: the Elliott et al. form of the multi-solute osmotic virial equation, and the Kleinhans and Mazur freezing point summation model. These two solution theories require fitting to only single-solute data, although they can make predictions in multi-solute solutions. The predictions of these non-ideal solution theories were compared to predictions made using ideal dilute assumptions and to available literature multi-solute experimental osmometric data. A single, consistent set of literature single-solute solution data was used to fit for the required solute-specific coefficients for each of the non-ideal models. Our results indicate that the two non-ideal solution theories have similar overall performance, and both give more accurate predictions than ideal models. These results can be used to select between the non-ideal models for a specific multi-solute solution, and the updated coefficients provided in this work can be used to make the desired predictions.

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“…For quantitative analysis, we employ an exponential decay expression, which was used in our recent experimental study. 49 The exponential fit for W bw /W w of the aqueous solutions is depicted in Figure 6, and the fitting parameters a, b and c in Eq. (1) are listed in Table 2.…”

mentioning

confidence: 99%

Molecular Dynamics Investigation of the Effects of Concentration on Hydrogen Bonding in Aqueous Solutions of Methanol, Ethylene Glycol and Glycerol

Zhang¹,

Li²,

Chen³

et al. 2013

Bulletin of the Korean Chemical Society

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Hydrogen bonding interaction between alcohols and water molecules is an important characteristic in the aqueous solutions of alcohols. In this paper, a series of molecular dynamics simulations have been performed to investigate the aqueous solutions of low molecular weight alcohols (methanol, ethylene glycol and glycerol) at the concentrations covering a broad range from 1 to 90 mol %. The work focuses on studying the effect of the alcohols molecules on the hydrogen bonding of water molecules in binary mixtures. By analyzing the hydrogen bonding ability of the hydroxyl (-OH) groups for the three alcohols, it is found that the hydroxyl group of methanol prefers to form more hydrogen bonds than that of ethylene glycol and glycerol due to the intra-and intermolecular effects. It is also shown that concentration has significant effect on the ability of alcohol molecule to hydrogen bond water molecules. Understanding the hydrogen bonding characteristics of the aqueous solutions is helpful to reveal the cryoprotective mechanisms of methanol, ethylene glycol and glycerol in aqueous solutions.

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Two applications of the thermogram of the alcohol/water binary system with compositions of cryobiological interests

Cited by 11 publications

References 26 publications

Application of differential scanning calorimetry to estimate quality and nutritional properties of food products

Application of differential scanning calorimetry to estimate quality and nutritional properties of food products

Comparison of non-ideal solution theories for multi-solute solutions in cryobiology and tabulation of required coefficients

Molecular Dynamics Investigation of the Effects of Concentration on Hydrogen Bonding in Aqueous Solutions of Methanol, Ethylene Glycol and Glycerol

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