Thin-layer chromatography of polyglycerols

Dallas, M.S.J.; Stewart, M F

doi:10.1039/an9679200634

Cited by 19 publications

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“…To develop the column chromatographic purification of tri-and tetraglycerol, various solvent mixtures were investigated in preliminary TLC experiments: ethylacetate-isopropanol-acetone-methanol-water (50:15:15:16:4) (v:v) [23], benzene-methanol (8:3) (v:v) [17], acetone-butanol-water (5:4:1) (v:v) [26] and ethylacetate-isopropanol-water (7:2:1), (6:2:1), (6:3:1) and (5:2:1) (v:v) [22,26]. Only the latter solvent mixture seemed to be successful for an adequate separation of the polyglycerols present in the polyglycerol mixtures analysed.…”

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confidence: 99%

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Development of chromatographic method for the determination of degree of polymerisation of polyglycerols and polyglycerol fatty acid esters

2000

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SummaryFrom polyglycerol samples, pure standards of tri and tetraglycerol were obtained using a column chromatographic technique. Polyglycerols were derivatised to trimethyl silyl derivatives to obtain gas chromatographic identification of all linear, branched and cyclic diglycerol isomers and all linear and branched triglycerols. Moreover, quantitative gas chromatographic analysis of the di-, tri-and tetraglycerol content of a polyglycerol sample was developed. Finally a method to characterise, on a quantitative basis, the polyglycerol content ofpolyglycerol fatty acid esters was developed. It consisted of saponifying the esters, without affecting the degree of polymerisation of the polyglycerols, followed by gas chromatographic analysis of the isolated polyglycerol fraction.

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confidence: 99%

“…For analysis of the polyglycerols themselves, similar techniques have been used [ 17,[21][22][23][24][25]. In contrast to the …”

Section: Introductionmentioning

confidence: 99%

Development of chromatographic method for the determination of degree of polymerisation of polyglycerols and polyglycerol fatty acid esters

2000

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“…I m weiteren Sinn wird auch ein Gemisch, das Glycerin unterschiedlichen Kondensationsgrades enthat, als Polyglycerin oder Polyol bezeichnet . Untersuchungen der Polymerisationsreakon m i e n , das bevorzugt die terminalen Hydroxylgruppen unter Bildung von Atherbindungen reagieren [22]. Nach der Art der Verkntipfung der Hydroxylgruppen werden I-I-, 1-2-und a-2-Isomere unterschieden.…”

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Zur Kenntnis der Polyglycerinfettsäureester

Stenzel

Franzke

1977

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Polyglycerinfettsiiureester (PGFE) haben in den letzten Jahren als Emulgatoren wegen ihrer vielfatigen Anwendungsm6glichkeiten zunehmende Bedeutung ffir die Lebensmittelindustrie erlangt. Sie werden durch Umsatz von Polyglycerin (PG) mit FettsBuren bzw. Fetten hergestellt. I. Polyglycerin (PG)Unter PG werden die linearen Kondensationsprodukte von Glycerin (Propantrio1-1,~,3) wrstanden. Abb. I zeigt die allgemeine Strukturformel. Aus der Literatur sind Kondensationsprodukte bekannt. in denen bis zu 40 Glycerinmolekfile linear verknfipft sind (P24). Di-und

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Übersichtsartikel. Synthese, Charakterisierung und Applikation von Polyglycerolen und Polyglycerolfettsäureestern

Behrens

Mieth

1984

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The current state of knowledge in the field of synthesis and properties of polyglycerols and polyglycerol fatty acid esters is presented. Alternatives for the analytical characterization of these families by means of physico-chemical methods, with special reference to chromatography and spectroscopy, are described. Furthermore, the use of polyglycerol fatty acid esters as food additives is considered from the view-points of the physiology of nutrition and of processing technology.

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Thin-layer chromatography of polyglycerols

Cited by 19 publications

References 0 publications

Development of chromatographic method for the determination of degree of polymerisation of polyglycerols and polyglycerol fatty acid esters

Development of chromatographic method for the determination of degree of polymerisation of polyglycerols and polyglycerol fatty acid esters

Zur Kenntnis der Polyglycerinfettsäureester

Übersichtsartikel. Synthese, Charakterisierung und Applikation von Polyglycerolen und Polyglycerolfettsäureestern

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