title: Chemical and Functional Properties of Chia Seed (Salvia hispanica L.) Gum.
abstract: Chia (Salvia hispanica L.) constitutes a potential alternative raw material and ingredient in food industry applications due to its dietary fiber content. Gum can be extracted from its dietary fiber fractions for use as an additive to control viscosity, stability, texture, and consistency in food systems. The gum extracted from chia seeds was characterized to determine their quality and potential as functional food additives. The extracted chia gum contained 26.2% fat and a portion was submitted to fat extraction, producing two fractions: gum with fat (FCG) and gum partly defatted (PDCG). Proximal composition and physicochemical characterization showed these fractions to be different (P < 0.05). The PDCG had higher protein, ash, and carbohydrates content than the FCG, in addition to higher water-holding (110.5 g water/g fiber) and water-binding capacities (0.84 g water/g fiber). The FCG had greater oil-holding capacity (25.7 g oil/g fiber) and water absorption capacity (44 g water/g fiber). In dispersion trials, the gums exhibited a non-Newtonian fluid behavior, specifically shear thinning or pseudoplastic type. PDCG had more viscosity than FCG. Chia seed is an excellent natural source of gum with good physicochemical and functional qualities, and is very promising for use in food industry.
authors.affiliation: Facultad de Ingeniería Química, Universidad Autónoma de Yucatán, Periférico Nte. Km. 33.5, Tablaje Catastral 13615, Col. Chuburná de Hidalgo Inn, 97203 Mérida, YUC, Mexico.
authors.forename: Maira Rubi
authors.initials: MR
authors.lastname: Segura-Campos
authors.affiliation: Facultad de Ingeniería Química, Universidad Autónoma de Yucatán, Periférico Nte. Km. 33.5, Tablaje Catastral 13615, Col. Chuburná de Hidalgo Inn, 97203 Mérida, YUC, Mexico.
authors.forename: Norma
authors.initials: N
authors.lastname: Ciau-Solís
authors.affiliation: Facultad de Ingeniería Química, Universidad Autónoma de Yucatán, Periférico Nte. Km. 33.5, Tablaje Catastral 13615, Col. Chuburná de Hidalgo Inn, 97203 Mérida, YUC, Mexico.
authors.forename: Gabriel
authors.initials: G
authors.lastname: Rosado-Rubio
authors.affiliation: Facultad de Ingeniería Química, Universidad Autónoma de Yucatán, Periférico Nte. Km. 33.5, Tablaje Catastral 13615, Col. Chuburná de Hidalgo Inn, 97203 Mérida, YUC, Mexico.
authors.forename: Luis
authors.initials: L
authors.lastname: Chel-Guerrero
authors.affiliation: Facultad de Ingeniería Química, Universidad Autónoma de Yucatán, Periférico Nte. Km. 33.5, Tablaje Catastral 13615, Col. Chuburná de Hidalgo Inn, 97203 Mérida, YUC, Mexico.
authors.forename: David
authors.initials: D
authors.lastname: Betancur-Ancona