Linseed and xanthan gum in algae pasta: textural, sensory and antioxidant characteristics

Abstract

Algae and field crops can innovate and improve pasta; however, incorporation of high-fibre materials can weaken the protein-starch matrix. This study's aim was to verify how ratios of xanthan gum (XG) and linseed flour (LF) would influence physical, sensory attributes and bioactivity of pasta supplemented with algae. Fucus vesiculosus and Chlorella vulgaris were incorporated into durum wheat along with LF or XG. Samples were evaluated for optimal cooking time (OCT), cooking loss, colour variation, texture profile analysis (TPA), sensory evaluation, total phenolic content and antioxidant activity. XG increased cooking time and cooking loss. The phenolic content and antioxidant activity were highest in samples with LF. TPA showed texture is influenced by incorporation of algae. Sensory analysis showed that LF-enriched pasta had better acceptance. Observations in biochemical composition and physical parameters revealed the potential to formulate dry or fresh pasta with a better nutritional content.