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Natural antioxidants in emulsions O/W
- Source :
- Repositório Científico de Acesso Aberto de Portugal, Repositório Científico de Acesso Aberto de Portugal (RCAAP), instacron:RCAAP
- Publication Year :
- 2020
-
Abstract
- This study compared the capacity of propolis extract (PE) and thyme waste extract (TWE) to prevent the oxidation of oil in water (O/W) emulsion, as well as their impact on emulsion apparent viscosity (AV) in the presence of wheat germ and almond oils as lipid phase. For this, central composite design (CCD) and principal component analysis (PCA) were performed. Oxidation process was monitored by evaluating the formation of primary and secondary lipid oxidation products, at the same time the AV behavior was determined evaluating consistency index and flow behavior index. The results revealed that the increase of PE% and TWE% decreases TBARS (Thiobarbituric Acid Reactive Substances) and hydroperoxides formation. Viscosity increases with the rise of TWE% over (0.04%), whereas lower concentrations of PE% decreases it. Those results have been confirmed in the PCA analysis. TWE showed higher resistance to oxidation, although PE was more effective as antioxidant than TWE.
- Subjects :
- Lipid Peroxides
Antioxidant
Central composite design
Thiobarbituric acid
medicine.medical_treatment
TBARS
01 natural sciences
Thiobarbituric Acid Reactive Substances
General Biochemistry, Genetics and Molecular Biology
Antioxidants
Propolis
Thymus Plant
chemistry.chemical_compound
Lipid oxidation
medicine
Plant Oils
Food science
Triticum
Dieta mediterrânica
010405 organic chemistry
Plant Extracts
Viscosity
Thyme
Apparent viscosity
0104 chemical sciences
Hydroperoxides
010404 medicinal & biomolecular chemistry
chemistry
Emulsion
Emulsions
Oxidation-Reduction
Subjects
Details
- ISSN :
- 18657125
- Volume :
- 75
- Issue :
- 9-10
- Database :
- OpenAIRE
- Journal :
- Zeitschrift fur Naturforschung. C, Journal of biosciencesReferences
- Accession number :
- edsair.doi.dedup.....256348a34cfe5373d4228eaaae3db1a7