TY - GEN
T1 - (ABSTRACT) Lipid oxidation of safflower oil structured with waxes
AU - Johnson, Crystal
AU - Silva, Roberta C
AU - Colleran, Heather
AU - Gyawali, Rabin
AU - Ibrahim, Salam
AU - Claro Da Silva, Roberta
PY - 2019
Y1 - 2019
N2 - 436Lipid Oxidation of Safflower Oil Structured with Waxes. C. R. Johnson*, R. C. Silva, H. L. Colleran, R. Gyawali,S. A. Ibrahim, Department of Family and Consumer Sciences, North Carolina Agricultural and Technical StateUniversity, Greensboro, NC 27411; and J. R. Ract, Department of Biochemical-Pharmaceutical Technology, Facultyof Pharmaceutical Sciences, São Paulo University, São Paulo, SP, Brazil.Oleogels are three-dimensional, self-standing, thermo-reversible, anhydrous, viscoelastic gels created byadding small molecular weight organogelators and/or polymeric gelators, which can self-assemble themselves intogel networks via noncovalent interactions, into an organic phase (edible oil) and mixing and sometimes heating andcooling to entrap the liquid phase. Among several studied oleogelators, waxes appear to be the most promising.Despite the versatility of these gels, the oils must first be heated above the waxes’ melting point temperature in orderto induce the gelation process (80–90 °C). The heating requirement introduces several challenges about the oleogelquality and oxidation of the oil component. The oxidation can lead to a deterioration in gel quality and could reducepalatability and overall acceptability of the final product. Thus, the objective of this study was to investigate theoxidation by Peroxide Value (PV) in safflower oil structured with three different waxes: candelilla wax (2, 3 and6%), and carnauba wax (2, 4 and 8%). In addition, the oleogels were analyzed by the Oil Binding Capacity Method(OBC) under two different temperature conditions (room temperature and 35 ºC) at two different times (Day 1 and 7).Candelilla wax showed the highest OBC, and it was also the most stable, even at higher temperatures. After 7 days,the PV of the oleogels was below 10 meq/kg oil. The oleogels’ oxidation will continue to be monitored for 3 monthsin order to observe their stability in different temperature conditions (room and 60 °C).
AB - 436Lipid Oxidation of Safflower Oil Structured with Waxes. C. R. Johnson*, R. C. Silva, H. L. Colleran, R. Gyawali,S. A. Ibrahim, Department of Family and Consumer Sciences, North Carolina Agricultural and Technical StateUniversity, Greensboro, NC 27411; and J. R. Ract, Department of Biochemical-Pharmaceutical Technology, Facultyof Pharmaceutical Sciences, São Paulo University, São Paulo, SP, Brazil.Oleogels are three-dimensional, self-standing, thermo-reversible, anhydrous, viscoelastic gels created byadding small molecular weight organogelators and/or polymeric gelators, which can self-assemble themselves intogel networks via noncovalent interactions, into an organic phase (edible oil) and mixing and sometimes heating andcooling to entrap the liquid phase. Among several studied oleogelators, waxes appear to be the most promising.Despite the versatility of these gels, the oils must first be heated above the waxes’ melting point temperature in orderto induce the gelation process (80–90 °C). The heating requirement introduces several challenges about the oleogelquality and oxidation of the oil component. The oxidation can lead to a deterioration in gel quality and could reducepalatability and overall acceptability of the final product. Thus, the objective of this study was to investigate theoxidation by Peroxide Value (PV) in safflower oil structured with three different waxes: candelilla wax (2, 3 and6%), and carnauba wax (2, 4 and 8%). In addition, the oleogels were analyzed by the Oil Binding Capacity Method(OBC) under two different temperature conditions (room temperature and 35 ºC) at two different times (Day 1 and 7).Candelilla wax showed the highest OBC, and it was also the most stable, even at higher temperatures. After 7 days,the PV of the oleogels was below 10 meq/kg oil. The oleogels’ oxidation will continue to be monitored for 3 monthsin order to observe their stability in different temperature conditions (room and 60 °C).
M3 - Conference contribution
SP - 231
BT - Unknown book
ER -