16 05, 2019

Glass Transition

Glass Transition What is Glass Transition? Glass transition (Tg) is a physical property of food polymers. It is the temperature range where food polymers undergo a phase change from rigid/glassy to soft. Food polymers can be proteins, starch and non-starch polysaccharides, including cellulose, glucans and arabinoxylans. In summary, glass transition is a [...]

7 06, 2015

Starch Gelatinization

Starch Gelatinization What is Starch Gelatinization? Starch gelatinization is the irreversible loss of the molecular order of starch granules (crystallinity). It is considered a glass transition from an ordered initial state to a disordered final state, usually resembling a “melting” process, that requires water and heat.1,2 In the cooking or baking process, [...]


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