title: Encapsulation of flaxseed oil using a benchtop spray dryer for legume protein-maltodextrin microcapsule preparation.
abstract: Flaxseed oil was microencapsulated employing a wall material matrix of either chickpea (CPI) or lentil protein isolate (LPI) and maltodextrin using a benchtop spray dryer. Effects of emulsion formulation (oil, protein and maltodextrin levels) and protein source (CPI vs LPI) on the physicochemical characteristics, oxidative stability, and release properties of the resulting capsules were investigated. Microcapsule formulations containing higher oil levels (20% oil, 20% protein, 60% maltodextrin) were found to have higher surface oil and lower encapsulation efficiencies. Overall, LPI-maltodextrin capsules gave higher flaxseed oil encapsulation efficiencies (∼88.0%) relative to CPI-maltodextrin matrices (∼86.3%). However, both designs were found to provide encapsulated flaxseed oil protection against oxidation over a 25 d room temperature storage study relative to free oil. Overall, ∼37.6% of encapsulated flaxseed oil was released after 2 h under simulated gastric fluid, followed by the release of an additional ∼46.6% over a 3 h period under simulated intestinal fluid conditions.
authors.affiliation: Department of Food and Bioproduct Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon SK S7N 5A8, Canada.
authors.forename: Asli
authors.initials: A
authors.lastname: Can Karaca
authors.forename: Nicholas
authors.initials: N
authors.lastname: Low
authors.forename: Michael
authors.initials: M
authors.lastname: Nickerson
mesh_terms: D002214:Capsules / Q000737:chemistry / Q000493:pharmacokinetics; D029863:Cicer / Q000737:chemistry*; D004339:Drug Compounding / Q000295:instrumentation / Q000379:methods*; D004355:Drug Stability; D006801:Humans; D007413:Intestinal Mucosa / Q000378:metabolism; D027806:Lens Plant / Q000737:chemistry*; D008043:Linseed Oil / Q000737:chemistry* / Q000493:pharmacokinetics; D008954:Models, Biological; D010084:Oxidation-Reduction; D010316:Particle Size; D010940:Plant Proteins / Q000737:chemistry* / Q000493:pharmacokinetics; D011134:Polysaccharides / Q000737:chemistry* / Q000493:pharmacokinetics
chemical_list: D002214:Capsules; D010940:Plant Proteins; D011134:Polysaccharides; C008315:maltodextrin; D008043:Linseed Oil