title: Microcapsule production employing chickpea or lentil protein isolates and maltodextrin: physicochemical properties and oxidative protection of encapsulated flaxseed oil.
abstract: Flaxseed oil was microencapsulated, employing a wall material matrix of either chickpea (CPI) or lentil protein isolate (LPI) and maltodextrin, followed by freeze-drying. Effects of oil concentration (5.3-21.0%), protein source (CPI vs. LPI) and maltodextrin type (DE 9 and 18) and concentration (25.0-40.7%), on both the physicochemical characteristics and microstructure of the microcapsules, were investigated. It was found that an increase in emulsion oil concentration resulted in a concomitant increase in oil droplet diameter and microcapsule surface oil content, and a decrease in oil encapsulation efficiency. Optimum flaxseed oil encapsulation efficiency (∼83.5%), minimum surface oil content (∼2.8%) and acceptable mean droplet diameter (3.0 μm) were afforded with 35.5% maltodextrin-DE 9 and 10.5% oil. Microcapsules, formed by employing these experimental conditions, showed a protective effect against oxidation versus free oil over a storage period of 25 d at room temperature.
authors.affiliation: Department of Food and Bioproduct Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, Canada S7N 5A8.
authors.forename: Asli Can
authors.initials: AC
authors.lastname: Karaca
authors.forename: Michael
authors.initials: M
authors.lastname: Nickerson
authors.forename: Nicholas H
authors.initials: NH
authors.lastname: Low
mesh_terms: D002214:Capsules; D029863:Cicer / Q000737:chemistry*; D004339:Drug Compounding / Q000379:methods*; D004355:Drug Stability; D004655:Emulsions / Q000737:chemistry; D007700:Kinetics; D027806:Lens Plant / Q000737:chemistry*; D008043:Linseed Oil / Q000737:chemistry*; D010084:Oxidation-Reduction; D010316:Particle Size; D010940:Plant Proteins / Q000737:chemistry* / Q000302:isolation & purification; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D002214:Capsules; D004655:Emulsions; D010940:Plant Proteins; D011134:Polysaccharides; C008315:maltodextrin; D008043:Linseed Oil