title: Characterisation of mucilages extracted from seven Italian cultivars of flax.
abstract: The chemical composition, physicochemical, functional and sensory properties of mucilages, extracted from seven Italian flax cultivars, were evaluated. All samples were composed of neutral and acidic sugars, with a low protein content. From the NMR data, a rhamnogalacturonan backbone could be inferred as a common structural feature for all the mucilages, with some variations depending on the cultivar. All the suspensions showed a poor stability, which was consistent with a low zeta potential absolute value. The viscosity seemed to be positively correlated with the neutral sugars and negatively with the amount of proteins. Functional properties were dependent on the cultivar. The sensory analysis showed that most mucilages are tasteless. All these outcomes could support the use of flaxseed mucilages for industrial applications. In particular, Solal and Festival cultivars could be useful as thickeners, due to their high viscosity, while Natural, Valoal and Kaolin as emulsifiers for their good surface-active properties.
authors.affiliation: Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146 Genoa, Italy.
authors.forename: Thammarat
authors.initials: T
authors.lastname: Kaewmanee
authors.forename: Lucia
authors.initials: L
authors.lastname: Bagnasco
authors.forename: Soottawat
authors.initials: S
authors.lastname: Benjakul
authors.forename: Silvia
authors.initials: S
authors.lastname: Lanteri
authors.forename: Carlo F
authors.initials: CF
authors.lastname: Morelli
authors.forename: Giovanna
authors.initials: G
authors.lastname: Speranza
authors.forename: M Elisabetta
authors.initials: ME
authors.lastname: Cosulich
mesh_terms: D019597:Flax / Q000737:chemistry*; D006801:Humans; D007558:Italy; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D062087:Plant Mucilage / Q000737:chemistry* / Q000302:isolation & purification; D012639:Seeds / Q000737:chemistry*; D013649:Taste; D014783:Viscosity
chemical_list: D010936:Plant Extracts; D062087:Plant Mucilage
keywords: Flax cultivar; Flaxseed mucilage; Functional properties; Linum usatissimum L.; Principal component analysis (PCA); Taste profile