3.3. Texture properties of heat-set surimi gels
Shear stress and strain are shown in Fig. 1. Fortification of surimi
with 2, 4, and 6 g/100 g of fiber resulted in greater (P < 0.05) gel
strength than the control and 8 g/100 fiber treatments. Although 2,
4, and 6 g/100 g treatments had similar (P > 0.05) shear stress,
shear strain was the highest (P < 0.05) for the 2 g/100 g fiber treatment,
indicating that fortification of surimi with 2 g/100 g of fiber
resulted in formation of the most cohesive gel. The 4 and 6 g/100 g
fiber treatments had similarly (P > 0.05) cohesive gels to each
other, but these gels were slightly less (P < 0.05) cohesive than
the with 2 g/100 g treatment; while the control and 8 g/100 g fiber
treatments had the least (P < 0.05) cohesive gel. These results indicate
that fortification of surimi with 2–6 g/100 g of fiber produces
gels with improved strength and cohesiveness compared to gels
without fiber fortification.