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Complexes of Biopolymers with Essential Lipids: Relationships between the Structure and Functional Properties


Nanosized and water-soluble complexes have been formed between biopolymers (a covalent conjugate of sodium caseinate with maltodextrin) and essential lipids. These lipids were liposomes of soy phosphatidylcholine (PC: 59% omega-6 linoleic acid (LA); 7% omega-3 alpha-linolenic acid (ALA)) enriched by omega-3 ALA as a constituent of triglycerides of linseed oil (LO: 55% ALA; 18% LA). They were prepared without and with such plant antioxidant as an essential oil of clove bud (EOC). The basic relationships have been revealed between functional properties and the structural (size, molar mass, architecture, charge, density, structural arrangement of PC bilayers) as well as the thermodynamic (thermodynamic affinity for a solvent)parameters of the complexes. To measure these parameters we used a combination of the precise physico-chemical methods. They were the followings: a laser light scattering in static, dynamic and electrophoretic modes; an electron spin resonance spectroscopy; and an atomic force microscopy. The studied functional properties of the complexes included their water-solubility and protective ability against auto oxidation of the essential lipids encapsulated into the complexes.

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In this study, we used the instruments of the IBCP of the Russian Academy of Sciences (a center of magnetic spectroscopy and a laser light scattering sector). The authors are grateful to the Lipoid Gmbh (Germany) and AVEBE GROUP (Netherlands) firms for providing free samples of phosphatidylcholine and maltodextrin for this study, respectively.

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Correspondence to M. G. Semenova.

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The work of M.G.S., A.S.A., N.P.P., T.A.M., E.I.M., D.V.Z., N.G.B., S.A.Ch. and M.D.G. was supported by the grant no. 14-16-00102 of the Russian Science Foundation.

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Semenova, M.G., Antipova, A.S., Palmina, H.P. et al. Complexes of Biopolymers with Essential Lipids: Relationships between the Structure and Functional Properties. Russ. J. Phys. Chem. B 13, 932–937 (2019).

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  • biopolymers
  • essential lipids
  • plant antioxidant
  • supramolecular complexes
  • structure
  • water-solubility
  • autooxidation