期刊
TRENDS IN FOOD SCIENCE & TECHNOLOGY
卷 42, 期 1, 页码 13-26出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tifs.2014.11.003
关键词
-
资金
- Netherlands Organization for Scientific Research (NWO)
At the submicron scale, food biopolymer networks can be visualized by a wide array of microscopic techniques, but these methods are mostly invasive and require careful image analysis in order to quantify network features. 'Nanoparticle diffusometry' provides a non-invasive alternative to infer quantitative submicron structural information about biopolymer networks. In this approach, spectroscopy-based methods are used to monitor hindered diffusion of nanoparticles due to network obstructions. Both rigid-spherical and flexible nanoparticles can be used and models are available to derive structural network parameters. A range of applications to polysaccharide and protein sols and gels has been described. The approach offers opportunities to assess (sub-) micron scale network heterogeneity and changes in submicron structure under dynamical conditions such as shear or aging.
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