Physicochemical characteristics and proximate composition of wheat cultivars from the Canary Islands

Abstract

Proximate composition was determined in 19 wheat cultivars from the Canary Islands in order to establish differences between them and contribute to their characterization. All parameters analysed showed signifi cant differences between cultivars; and also many parameters were affected by the species and subspecies of wheat. Triticum aestivum had higher mean moisture, protein, and fi bre and lower mean starch, sucrose, and amylose concentrations than Triticum turgidum. Low starch content and high fi bre content could be due to the transformation of starch into resistant starch during desiccation process. An important contribution of complex carbohydrates, including fi bre as well as protein and phenolic compounds, was observed for the consumption of wheat.

The chemical composition of barley grain (Hordeum vulgare L.) landraces from the Canary Islands

“…The concentrations of total phenolic compounds and antioxidant activity in the barley samples varied between 117 to 284 mg GAE/100 g dw and 0.59 and 0.96 mg TE/g dw, respectively. These values are approximately twice those values found for wheat landraces from the Canary Islands (Rodríguez, Morales, Rodríguez-Rodríguez, & Romero, 2018). The results obtained here for the phenolic compounds were (2006).…”