Barrier technology - Introduction - Edible coatings and berries in food applications

9 important questions on Barrier technology - Introduction - Edible coatings and berries in food applications

What are examples of lipid films?

Waxes, acylglycerols and fatty acids

What are heterogeneous films?

It implies the use of more than one phase, usually a lipid and an aqueous, bio-polymeric phase, applied as emulsions, or as multi-layered films

What are examples of biopolymers films?

Solutions of proteins, cellulose derivates, alginates, pectins, starches or other polysaccharides
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What kind of film can be used for retardation of migration of solutes?

Biopolymers, lipid or heterogeneous

What kind of film can be used for improvement of structural integrity of handling properties?

Biopolymers, lipid or heterogeneous

What kind of film can be used for retain volatile flavour components?

Biopolymers, heterogeneous

What kind of film can be used for convey food additives?

Biopolymers, lipid or heterogeneous

What are 3 types of films?

Biopolymers, lipid, heterogeneous

Which two domains are the basis of the design of a good barrier?

  • Thermodynamics (chemical potential differences, sorption isotherms and driving forces)
  • Dynamics (mobility and diffusivity)

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