Investigation of Distribution of Antioxidant Compounds from Natural Sources and Study of Lipid Protection in Oil-in-Water Emulsions
AUTOR(ES)
Palombini, Sylvio V., Carbonera, Fabiana, Galuch, Marília B., Claus, Thiago, Magon, Thiago F. S., Visentainer, Jesuí V., Gomes, Sandra T. M., Matsushita, Makoto
FONTE
J. Braz. Chem. Soc.
DATA DE PUBLICAÇÃO
2018-08
RESUMO
The investigation of the distribution of antioxidant compounds between emulsions phases, employing natural sources of these compounds directly in the emulsions, is rarely addressed. The use of ultra performance liquid chromatography coupled to a mass spectrometer (UPLC-MS), combined with accelerated oxidation tests and oxygen radical absorbance capacity method (ORAC), using the fluorescein (FL) decay curve (ORACFL) assay, enable an improved evaluation of the distribution of the antioxidant compounds and their lipid protection abilities. The lipid protection tendency observed was in agreement with the polar paradox theory. The ORACFL results reported here are higher than other reported in the literature, even when performing a sample extraction directly into one of the emulsion phases, thus demonstrating the effectiveness of this direct addition regarding the antioxidant activity. The analysis of the mass spectra of the emulsions enabled to verify the existence and distribution of some phenolic compounds in both phases. The direct extraction in the aqueous and oil phases of the emulsion increased, in a general way, the amount of identified compounds in each phase.
Documentos Relacionados
- Rheological properties of oil-in-water emulsions prepared with oil and protein isolates from sesame (Sesamum Indicum)
- Stability and rheological behavior of coconut oil-in-water emulsions formed by biopolymers
- A novel fiber-optic photometer for in situ stability assessment of concentrated oil-in-water emulsions
- Efficient Encapsulation and Controlled Release of N,N-Diethyl-3-methylbenzamide (DEET) from Oil-in-Water Emulsions Stabilized by Cationic Nanocellulose and Silica Nanoparticles
- ESCOAMENTO DE EMULSÕES ÓLEO- ÁGUA ATRAVÉS DE CAPILARES COM GARGANTA