Abstracts Book - IMRC 2018

• SB2-P048
EFFECT OF KCl AND MgCl2 ON THE RHEOLOGICAL PROPERTIES OF
AQUEOS SOLUTIONS OF CHAN SEED MUCILAGE
Yokiushirdhilgilmara Estrada Girón 1 , Emma Rebeca Macías Balleza 1 , José de Jesús Sánchez
Delgadillo 1 , Victor Vladimir Amilcar Fernáncez Escamilla 2
1
Universidad de Guadalajara, Departamento de Ingeniería Química, Mexico. 2 Universidad de
Guadalajara, Departamento de Ciencias Tecnológicas, Mexico.
Chan plant (Hyptys suaveolens L) belongs to the family of Lamiaceae and is
widely used due to its chemical constituents, which includes alkaloids, tannins,
saponins, flavonoids and phenols. Seeds contain mucilage composed of D-
glucose and 4-O-methyl-D-glucurinic acid; while, fractionating it with Fehlings
solution, acid and neutral polysaccharides are obtained. From our previous
research, mucilage of Chan seed has been extracted and characterized in their
physicochemical and rheological (in aqueous solutions) properties; thus, this
study focused on assessing the rheological properties of this mucilage at
different salts ionic strength (MgCl2 and KCl) as a function of salt and mucilage
concentration. The results showed that the viscosity diminishes when salt is
added even at very low concentrations (1x10 -3 M) independently of mucilage
concentration (0.4, 0.7 and 1 wt. %) and salt type (KCl or MgCl2). At higher salt
concentrations the viscosity increases, exhibiting a maximum value at 0.3 M.
Regardless concentration and type of electrolyte, mucilage solutions behave like
weak gels; similarly, mucilage solutions also exhibited a pseudoplastic, reopéctic
behavior.
Keywords: Hyptis Suaveolens seed mucilage solutions, Effect salt, Rheological
Behavior
Presenting authors email: emmarebecamacias@hotmail.com