PMID- 22206732 OWN - NLM STAT- MEDLINE DCOM- 20120514 LR - 20131121 IS - 1873-4367 (Electronic) IS - 0927-7765 (Linking) VI - 92 DP - 2012 Apr 1 TI - Preparation and characterization of succinic acid deamidated wheat gluten microspheres for encapsulation of fish oil. PG - 305-14 LID - 10.1016/j.colsurfb.2011.12.003 [doi] AB - Succinic acid deamidated wheat gluten (SDWG) microspheres for encapsulation of fish oil (FO) via O/W/O double-emulsion followed by heat-polymerization of emulsified SDWG was reported. Different SWDG concentrations (16.8-67.2 mg/ml) and FO/SDWG ratios (1:3-4:3, w/w) were studied. To optimize the process, particle size and Zeta potential of SDWG-FO emulsion and encapsulation efficiency (EE) of FO were analyzed. The most efficient condition was obtained at 50.4 mg/ml for SDWG and 3:3 (w/w) for FO/SDWG ratio, with an EE of 81.8%. In this condition, confocal microscopy showed FO well encapsulated in SDWG microspheres. Scanning electron microscope (SEM) showed sunken pores and fractures inside microspheres after FO was extracted, confirming the presence of FO in microspheres. FTIR and electrophoresis showed during microspheres formation dramatically elevated SWDG aggregation resulted in intermolecular-crosslinking and enhanced interactions (hydrogen bonds and hydrophobic interactions) between SDWG and FO. In the evaluations of in vitro experiments in simulated gastric fluid and oxidation stability during storage, results indicated that SDWG matrix protected it from both oxygen and gastric fluid, resulting in improved storage stability and release property. Therefore, it is foreseen that SDWG can be used to encapsulate FO or other sensitive nutraceuticals in the applications of supplementation and functional foods. CI - Copyright (c) 2011 Elsevier B.V. All rights reserved. FAU - Liao, Lan AU - Liao L AD - Department of Nutrition and Food Sciences, University of Maryland, College Park, MD 20742-7521, USA. FAU - Luo, Yangchao AU - Luo Y FAU - Zhao, Mouming AU - Zhao M FAU - Wang, Qin AU - Wang Q LA - eng PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20111213 PL - Netherlands TA - Colloids Surf B Biointerfaces JT - Colloids and surfaces. B, Biointerfaces JID - 9315133 RN - 0 (Amides) RN - 0 (Delayed-Action Preparations) RN - 0 (Emulsions) RN - 0 (Fish Oils) RN - 8002-80-0 (Glutens) RN - AB6MNQ6J6L (Succinic Acid) SB - IM MH - Amides/*chemistry MH - Body Fluids/drug effects MH - Delayed-Action Preparations MH - Drug Compounding/*methods MH - Electrophoresis, Polyacrylamide Gel MH - Emulsions MH - Fish Oils/*pharmacology MH - Glutens/*chemistry MH - Microscopy, Confocal MH - Microscopy, Electron, Scanning MH - *Microspheres MH - Oxidation-Reduction/drug effects MH - Particle Size MH - Protein Structure, Secondary MH - Static Electricity MH - Succinic Acid/*chemistry MH - Triticum/*chemistry EDAT- 2011/12/31 06:00 MHDA- 2012/05/15 06:00 CRDT- 2011/12/31 06:00 PHST- 2011/08/03 00:00 [received] PHST- 2011/11/01 00:00 [revised] PHST- 2011/12/05 00:00 [accepted] PHST- 2011/12/31 06:00 [entrez] PHST- 2011/12/31 06:00 [pubmed] PHST- 2012/05/15 06:00 [medline] AID - S0927-7765(11)00737-5 [pii] AID - 10.1016/j.colsurfb.2011.12.003 [doi] PST - ppublish SO - Colloids Surf B Biointerfaces. 2012 Apr 1;92:305-14. doi: 10.1016/j.colsurfb.2011.12.003. Epub 2011 Dec 13.