The invention refers to grain of durum wheat, selected for the characteristic of not being capable of expressing the Sgp-1 gene, containing a durum wheat starch with an apparent amylose content of about 40% or more, by weight on the weight of the starch. Furthermore, the invention refers to a durum wheat meal obtained from the endosperm of caryopses of durum wheat, selected for the characteristic of not being capable of expressing the Sgp-1 gene, containing a durum wheat starch with an apparent amylose content of about 40% or more, by weight on the weight of the starch. Furthermore, the present invention refers to a durum wheat starch obtained from the endosperm of caryopses of durum wheat, selected for the characteristic of not being capable of expressing the Sgp-1 gene, having an apparent amylose content of about 40% or more by weight on the weight of the starch. Finally, the present invention refers to the use of the grain, meal and starch of the invention for the production of food products, in particular pastas, bread, biscuits and cakes, having prebiotic effect and a reduced glycemic index.
