title: Physicochemical characterization of black seed oil-milk emulsions through ultrasonication.
abstract: The ultrasonic formation of stable emulsions of a bioactive material, black seed oil, in skim milk was investigated. The incorporation of 7% of black seed oil in pasteurised homogenized skim milk (PHSM) using 20kHz high intensity ultrasound was successfully achieved. The effect of sonication time and acoustic power on the emulsion stability was studied. A minimum process time of 8min at an applied acoustic power of 100W was sufficient to produce emulsion droplets stable for at least 8days upon storage at 4±2°C, which was confirmed through creaming stability, particle size, rheology and color analysis. Partially denatured whey proteins may provide stability to the emulsion droplets and in addition to the cavitation effects of ultrasound are responsible for the production of smaller sized emulsion droplets.
authors.affiliation: Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Trichy 620 015, India. Electronic address: sanand@nitt.edu.
authors.forename: S
authors.initials: S
authors.lastname: Anandan
authors.affiliation: Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Trichy 620 015, India.
authors.forename: M
authors.initials: M
authors.lastname: Keerthiga
authors.affiliation: Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Trichy 620 015, India.
authors.forename: S
authors.initials: S
authors.lastname: Vijaya
authors.affiliation: The Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21413, Saudi Arabia.
authors.forename: A M
authors.initials: AM
authors.lastname: Asiri
authors.affiliation: Moscow State University of Technology and Management, Moscow, Russia.
authors.forename: V
authors.initials: V
authors.lastname: Bogush
authors.affiliation: Moscow State University of Technology and Management, Moscow, Russia.
authors.forename: O
authors.initials: O
authors.lastname: Krasulyaa
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D004655:Emulsions; D005502:Food; D008892:Milk / Q000737:chemistry*; D031881:Nigella sativa / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*; D013010:Sonication
chemical_list: D004655:Emulsions; D010938:Plant Oils
keywords: Black seed oil; Creaming stability; Milk emulsion; Rheological properties; Ultrasound