Development of functional couscous enriched in barley β-glucans

• DOI: 10.1016/j.jcs.2018.12.007
• Publication Date: 2018-12-10T05:32:59Z
• Authors: Maria Cristina Me...; Manuela Oriente; Martina Angelicola; Elisa De Arcangelis; Emanuele Marconi
• Keywords: Resistant Starch; Beta-glucan; Dietary fibre

Abstract A flour made from waxy, hulless barley, CDC Alamo, was subjected to air classification to obtain a coarse fraction enriched in β-glucans. Different percentages of semolina (20 and 30%) were replaced with this β-glucan-enriched barley flour to prepare functional couscous in a traditional manner (hand rolling). The couscous produced was evaluated for particle size distribution, chemical composition, gelatinized starch, furosine content and cooking quality. The incorporation of β-glucan-enriched barley flours in couscous production did not cause significant changes in the characteristics or properties of the final product, which had high total dietary fibre content (9.8 and 7.42% for mixtures 70/30 and 80/20, respectively) and β-glucans (4.09 and 2.79% for mixtures 70/30 and 80/20, respectively) compared to that of semolina control couscous (3.61% fibre and 0.18% β-glucans), fully meeting the FDA and Reg. UE 432/2012 requirements for health claims made on foodstuffs.