Changes on image texture features of breakfast flakes cereals during water absorption

Area of Science:

• Food science
• Materials science
• Image analysis

Background:

• Breakfast cereal flakes undergo significant structural and textural changes upon liquid absorption.
• The translucent nature of some cereals, like corn flakes, allows for visual assessment of internal matrix alterations during soaking.

Purpose of the Study:

• To analyze image texture changes in corn and frosted flakes during water absorption at varying temperatures (5, 15, 25°C).
• To correlate fractal dimension (FD) with rupture force (RF) reduction during soaking at 5°C.

Main Methods:

• Utilized 11 image texture features from grey-level co-occurrence and run length matrices.
• Applied principal component analysis to a dataset of soaking times and texture features.
• Measured the relationship between fractal dimension and rupture force.

Main Results:

• Principal component analysis successfully distinguished different soaking times at uniform temperatures for both cereal types.
• Superficial liquid imbibition was confirmed as a key factor in the absorption process.
• Standardized fractal dimension showed a correlation with rupture force as samples approached equilibrium.

Conclusions:

• Image texture analysis is effective in characterizing liquid absorption in breakfast cereals.
• Fractal dimension serves as a potential indicator of mechanical integrity loss during cereal soaking.