important factor which can alter gel structure, and affect functional
properties such as water absorption (Sendra et al., 2010). Some
studies have shown that addition of whey protein isolate improves
the physical properties of yogurts such as viscosity (Isleten & Karagul-
Yuceer, 2006; Sodini, Montella et al., 2005). Our study shows that
supplementation increased the strength of the gel system and lentil
flour had either greater or comparable effect to skim milk on the
strengthening of the yogurt gel network.