The effects of conventional extrusion (CV) and extrusion-cooking (EC) were investigated on 100% yellow lentils (YL). Both the extrusion processes led to pasta with good cooking quality (cooking loss: 7.0–7.1 g/100 g, firmness: 530–608 N), even in overcooking (cooking loss: 7.7–7.9 g/100 g, firmness: 418–513 N). Contrary to what is known for gluten-free cereals, CV is effective in producing pasta from native YL with no need for a pre-gelatinization step. However, pasta from EC showed a higher compression energy (2898 versus 2448 N*mm). In this sample, starch presented a higher degree of gelatinization (75.5 versus 57.6 g/100 g) and lower enthalpy (0.97 versus 1.07 J/g). At the same time, EC promoted a more compact structure that required higher temperature for melting (66.49 versus 63.16 °C) and showing pasting properties (79.1 versus 74.7 °C). Thus, by selecting suitable extrusion conditions it is possible to improve the cooking behavior of 100% pulse pasta.
Bresciani, A., Giuberti, G., Cervini, M., Marti, A., Pasta from yellow lentils: How process affects starch features and pasta quality, <<FOOD CHEMISTRY>>, 2021; 364 (1): 130387-130397. [doi:10.1016/j.foodchem.2021.130387] [https://hdl.handle.net/10807/230830]
Pasta from yellow lentils: How process affects starch features and pasta quality
Giuberti, Gianluca;Cervini, Mariasole;
2021
Abstract
The effects of conventional extrusion (CV) and extrusion-cooking (EC) were investigated on 100% yellow lentils (YL). Both the extrusion processes led to pasta with good cooking quality (cooking loss: 7.0–7.1 g/100 g, firmness: 530–608 N), even in overcooking (cooking loss: 7.7–7.9 g/100 g, firmness: 418–513 N). Contrary to what is known for gluten-free cereals, CV is effective in producing pasta from native YL with no need for a pre-gelatinization step. However, pasta from EC showed a higher compression energy (2898 versus 2448 N*mm). In this sample, starch presented a higher degree of gelatinization (75.5 versus 57.6 g/100 g) and lower enthalpy (0.97 versus 1.07 J/g). At the same time, EC promoted a more compact structure that required higher temperature for melting (66.49 versus 63.16 °C) and showing pasting properties (79.1 versus 74.7 °C). Thus, by selecting suitable extrusion conditions it is possible to improve the cooking behavior of 100% pulse pasta.
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