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Journal of colloid and interface science v.512, 2018년, pp.536 - 547   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Phenolic residues in spruce galactoglucomannans improve stabilization of oil-in-water emulsions

Lehtonen, M. (Department of Food and Environmental Sciences, University of Helsinki, FI-00014, Helsinki, Finland ) ; Merinen, M. (Department of Food and Environmental Sciences, University of Helsinki, FI-00014, Helsinki, Finland ) ; Kilpeläinen, P.O. (Natural Resources Institute Finland (Luke), FI-00790, Helsinki, Finland ) ; Xu, C. (Johan Gadolin Process Chemistry Centre, c/o Laboratory of Wood and Paper Chemistry, Åbo Akademi University, FI-20500, Turku, Finland ) ; Willför, S.M. (Johan Gadolin Process Chemistry Centre, c/o Laboratory of Wood and Paper Chemistry, Åbo Akademi University, FI-20500, Turku, Finland ) ; Mikkonen, K.S. (Department of Food and Environmental Sciences, University of Helsinki, FI-00014, Helsinki, Finland ) ;
  • 초록  

    Abstract Hypothesis Amphiphilic character of surfactants drives them at the interface of dispersed systems, such as emulsions. Hemicellulose-rich wood extracts contain assemblies (lignin-carbohydrate complexes, LCC) with natural amphiphilicity, which is expected to depend on their chemical composition resulting from the isolation method. Lignin-derived phenolic residues associated with hemicelluloses are hypothesized to contribute to emulsions’ interfacial properties and stability. Experiments We investigated the role of phenolic residues in spruce hemicellulose extracts in the stabilization of oil-in-water emulsions by physical and chemical approach. Distribution and changes occurring in the phenolic residues at the droplet interface and in the continuous phase were studied during an accelerated storage test. Meanwhile, the physical stability and lipid oxidation in emulsions were monitored. Findings Naturally associated lignin residues in GGM act as vehicles for anchoring these hemicelluloses into the oil droplet interface and further enable superior stabilization of emulsions. By adjusting the isolation method of GGM regarding their phenolic profile, their functionalities, especially interfacial behavior, can be altered. Retaining the native interactions of GGM and phenolic residues is suggested for efficient physical stabilization and extended protection against lipid oxidation. The results can be widely applied as guidelines in tailoring natural or synthetic amphiphilic compounds for interfacial stabilization. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    Spruce galactoglucomannans .   Phenolic residues .   Emulsion stability .   Lipid oxidation.  

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