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Nanofiltered saponin-rich extract of Saponaria officinalis – Adsorption and aggregation properties of particular fractions.

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Title: Nanofiltered saponin-rich extract of Saponaria officinalis – Adsorption and aggregation properties of particular fractions.
Authors: Grzywaczyk, Adam1 (AUTHOR), Smułek, Wojciech1 (AUTHOR), Zgoła-Grześkowiak, Agnieszka2 (AUTHOR), Kaczorek, Ewa1 (AUTHOR) ewa.kaczorek@put.poznan.pl, Zdziennicka, Anna3 (AUTHOR), Jańczuk, Bronisław3 (AUTHOR)
Source: Colloids & Surfaces A: Physicochemical & Engineering Aspects. Mar2023, Vol. 661, pN.PAG-N.PAG. 1p.
Subjects: Liquid chromatography-mass spectrometry, Langmuir isotherms, Molecular structure, Gibbs' free energy, Adsorption (Chemistry), Surface tension
Abstract: Plant extracts containing saponins combine high emulsifying properties with antibacterial activity, which makes them valuable adjuvants in pharmaceutical and food products. Saponins are natural surfactants present in various plant species, including Saponaria officinalis. Due to the variety of chemical structures and diversity of saponins in plant extracts, their surface-active properties are complex and differ from those of chemically pure surfactants. Hence, the aim of the study was to determine the correlation between the composition of S. officinalis extracts and their surface properties. The first stage of the study was characterization of the composition of the extracts studied by liquid chromatography coupled with mass spectrometry. Then the surface tension of the aqueous solutions of these extracts was measured, which permitted determination of their adsorption and aggregation parameters. The results have pointed out the differences between the properties of the studied extracts and those of pure surfactants of known molecular structure. The constants in the Szyszkowski equation allowed determination of the maximal excess concentration of a given extract at the water-air interface and the value of the Gibbs free energy of adsorption. The mentioned parameters were also determined from the Gibbs adsorption isotherm equation and the Langmuir equation modified by de Boer. The results obtained by these methods were found to be comparable with those determined from the Szyszkowski equation. What is more, it was found that the adsorption parameters correlated with the micelle sizes formed by the components of the tested S. officinalis extracts. All these valuable data help devise the informed use of extracts containing saponins in many branches of science and economy. [Display omitted] • Szyszkowski equation is useful for multicomponent solution. • E0, E1, E2, E3 and E4 have bigger tendency to aggregate than classical surfactants. • Minimal surface tension of E0, E1, E2, E3, E4 solution is larger than classical surfactants. • Tendency of saponins to micellization is smaller after nanofiltration process. [ABSTRACT FROM AUTHOR]
Copyright of Colloids & Surfaces A: Physicochemical & Engineering Aspects is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Nanofiltered saponin-rich extract of Saponaria officinalis – Adsorption and aggregation properties of particular fractions.
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  Data: <searchLink fieldCode="DE" term="%22Liquid+chromatography-mass+spectrometry%22">Liquid chromatography-mass spectrometry</searchLink><br /><searchLink fieldCode="DE" term="%22Langmuir+isotherms%22">Langmuir isotherms</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+structure%22">Molecular structure</searchLink><br /><searchLink fieldCode="DE" term="%22Gibbs'+free+energy%22">Gibbs' free energy</searchLink><br /><searchLink fieldCode="DE" term="%22Adsorption+%28Chemistry%29%22">Adsorption (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+tension%22">Surface tension</searchLink>
– Name: Abstract
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  Data: Plant extracts containing saponins combine high emulsifying properties with antibacterial activity, which makes them valuable adjuvants in pharmaceutical and food products. Saponins are natural surfactants present in various plant species, including Saponaria officinalis. Due to the variety of chemical structures and diversity of saponins in plant extracts, their surface-active properties are complex and differ from those of chemically pure surfactants. Hence, the aim of the study was to determine the correlation between the composition of S. officinalis extracts and their surface properties. The first stage of the study was characterization of the composition of the extracts studied by liquid chromatography coupled with mass spectrometry. Then the surface tension of the aqueous solutions of these extracts was measured, which permitted determination of their adsorption and aggregation parameters. The results have pointed out the differences between the properties of the studied extracts and those of pure surfactants of known molecular structure. The constants in the Szyszkowski equation allowed determination of the maximal excess concentration of a given extract at the water-air interface and the value of the Gibbs free energy of adsorption. The mentioned parameters were also determined from the Gibbs adsorption isotherm equation and the Langmuir equation modified by de Boer. The results obtained by these methods were found to be comparable with those determined from the Szyszkowski equation. What is more, it was found that the adsorption parameters correlated with the micelle sizes formed by the components of the tested S. officinalis extracts. All these valuable data help devise the informed use of extracts containing saponins in many branches of science and economy. [Display omitted] • Szyszkowski equation is useful for multicomponent solution. • E0, E1, E2, E3 and E4 have bigger tendency to aggregate than classical surfactants. • Minimal surface tension of E0, E1, E2, E3, E4 solution is larger than classical surfactants. • Tendency of saponins to micellization is smaller after nanofiltration process. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Colloids & Surfaces A: Physicochemical & Engineering Aspects is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.colsurfa.2023.130937
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Liquid chromatography-mass spectrometry
        Type: general
      – SubjectFull: Langmuir isotherms
        Type: general
      – SubjectFull: Molecular structure
        Type: general
      – SubjectFull: Gibbs' free energy
        Type: general
      – SubjectFull: Adsorption (Chemistry)
        Type: general
      – SubjectFull: Surface tension
        Type: general
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      – TitleFull: Nanofiltered saponin-rich extract of Saponaria officinalis – Adsorption and aggregation properties of particular fractions.
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            NameFull: Smułek, Wojciech
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            NameFull: Zdziennicka, Anna
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            – D: 20
              M: 03
              Text: Mar2023
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              Y: 2023
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