Whole lentil seeds were ground using a centrifugal mill and passed through a 60-mesh sieve with 0.5 mm pore size. Flours were stored at _20 _C before use. The lentil
protein concentrates were prepared using alkaline extraction as described in Garcia-Mora et al. (2014). Briefly, lentil flour was suspended in water (solid-to-solvent ratio 1:10, w/v) and the pH was adjusted to 8. The suspension was stirred in an orbital shaker (Infors, Switzerland) at 20 _C for 1 h and then vacuum-filtered using a filter funnel (100–160 lm nominal pore size) to remove solids. Lastly, filtrates were freeze-dried and stored under vacuum in plastic bags at _20 _C until further analysis.