Special Services
Determination of detailed molecular (three-dimensional) structures of polysaccharides

Determinations of crystallinity and the types, amounts, and sizes of crystallites

X-ray diffraction analysis of effects of variations in polysaccharide chemical sequence on intermolecular interactions

Determination of the relationship of starch and gum structures and characteristics to product texture

Determination of the effect of grain endosperm type and/or endosperm proteins on starch gelatinization behavior

Manipulation of cereal grain starch and protein digestibilities

Determination of the stabilities and textures of emulsions and foams

Investigation of adsorbed layers of proteins and surfactants in food emulsions and foams

Interfacial rheological measurements at air-ware and oil-water interfaces with adsorbed surfactant/protein layers

Determination of the functional properties of protein-polysaccharide complexes

Rheological characterization of solutions, gels, doughs, foods, and ingredients

Determination of the relationship of material properties, such as glass transitions, to texture

Chemical modification of mono-, di, oligo-, and polysaccharides

Determination of the compositions and structures of polysaccharides

Thermal analysis of food systems

Modeling of polymer systems and food process operations

FTIR analysis of foods and ingredients

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Adsorption isotherm measurements at interfaces via a Langmuir trough
Carbohydrate analysis of foods and biological materials
Circular dichroism
Crystallinity via x-ray crystallography
Electron microscopy
  • Backscattered electron imaging
  • Electron dispersive spectroscopy
  • SEM
  • Low-vacuum ("high-pressure") SEM
  • TEM

Mass spectrometry (both low and high resolution, both positive and negative ions)

  • Capillary GC/MS
  • CI
  • Electrospray
  • EI
  • FAB
  • Isotope ratio
  • MALDI
  • Plasma desorption MS

Mechanical properties (stress, strain, creep, stress relaxation)
Microscopy

  • Confocal
  • Electron (see Electron microscopy)
  • Fluorescence
  • Hot-stage (for BEPT determination)
  • Light

Molecular weight by SEC chromatography and MALLS
Nitrogen analysis
Optical rotation
Particle microelectrophoresis/zeta potential measurement
Particle size analysis

  • Microscopy
  • Light scattering

Polysaccharides

  • Chemical structures
  • Compositional analysis
  • Molecular structures

Polysaccharide mixtures, fractionation
Proximate analysis
Radiolabelling of proteins; measurement of radioactivity of labeled compounds
Rapid ViscoAnalyzer analysis
Rheology

  • Solutions and solutions under pressure
  • Gels
  • Doughs
  • Food and other systems

Surface tension measurements
Thermal analysis

  • DETA
  • DSC
  • Modulated DSC
  • TGA

Viscosity, see Rheology and Rapid ViscoAnalyzer analysis
X-ray crystallography

  • Determinations of types, amounts, and sizes of crystallites
  • Fiber diffraction analysis of 3-D structures of polysaccharide

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