title: Ultrasound-assisted extraction of phenolic compounds from Laurus nobilis L. and their antioxidant activity.
abstract: Bay leaves (BL) (Laurus nobilis L., Family: Laureceae) are traditionally used to treat some symptoms of gastrointestinal problems, such as epigastric bloating, impaired digestion, eructing and flatulence. These biological properties are mainly attributed to its phenolic compounds. In this paper, ultrasound-assisted extraction of phenolic compounds from Laurus nobilis L. (Laureceae) was studied. Effects of several experimental factors, such as sonication time, solid/liquid ratio and concentration of solvent on extraction of phenolic compounds were evaluated through a randomized complete block design with factorial treatment arrangement (3(3)). The best extraction conditions were: 1g plant sample with 12 mL of 35% ethanol, for 40 min, obtaining a yield of phenolic compounds of 17.32±1.52 mg g(-1) of plant. In addition, free radical-scavenging potential of DPPH and lipid oxidation inhibition, by linoleic acid peroxidation of the selected extract was measured in order to evidence their antioxidant properties. Results indicated that high amounts of phenolic compounds can be extracted from L. nobilis by ultrasound-assisted extraction technology.
authors.affiliation: Department of Food Science and Technology, School of Chemistry, Universidad Autonoma de of Coahuila, 25280 Saltillo, Coahuila, Mexico.
authors.forename: Diana B
authors.initials: DB
authors.lastname: Muñiz-Márquez
authors.forename: Guillermo C
authors.initials: GC
authors.lastname: Martínez-Ávila
authors.forename: Jorge E
authors.initials: JE
authors.lastname: Wong-Paz
authors.forename: Ruth
authors.initials: R
authors.lastname: Belmares-Cerda
authors.forename: Raúl
authors.initials: R
authors.lastname: Rodríguez-Herrera
authors.forename: Cristóbal N
authors.initials: CN
authors.lastname: Aguilar
mesh_terms: D000975:Antioxidants / Q000737:chemistry* / Q000302:isolation & purification*; D027442:Laurus / Q000737:chemistry*; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry* / Q000302:isolation & purification*; D010936:Plant Extracts / Q000737:chemistry; D013010:Sonication
chemical_list: D000975:Antioxidants; D010636:Phenols; D010936:Plant Extracts