Stable and bioactive W/O/W emulsion loaded with ``Pitanga{''} (Eugenia uniflora L.) leaf hydroethanolic extract

Autor(es)

Tessaro, Larissa ^[1] ; Luciano, Carla Giovana ^[1] ; Martins, Maria Fernanda Liborio ^[1] ; Ramos, Ana Paula ^[2] ; Martelli-Tosi, Milena ^[1] ; do Amaral Sobral, Paulo Jose ^{[1, 3]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Anim Sci & Food Engn, Dept Food Engn, Av Duque Caxias North 225, BR-13635900 Pirassununga, SP - Brazil

^[2] Univ Sao Paulo, Fac Philosophy Sci & Letters Ribeirao Preto, Dept Chem, Ribeirao Preto, SP - Brazil

^[3] Univ Sao Paulo, Food Res Ctr FoRC, Rua Lago, Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY; JUN 2021.
• Citações Web of Science: 0

Resumo

``Pitanga{''} leaf hydroethanolic extract (PLHE) presents high antioxidant and antimicrobial activities. The encapsulation of this extract in W/O/W double emulsions could protect its bioactive properties. The objective of this research was to encapsulate PLHE in the inner W phase of a double emulsion and analyze the emulsifiers concentrations and phase ratios effects on its droplet size and the physical stability. Moreover, the double emulsion rheological behavior, antioxidant and antimicrobial activities in their more stable formulation was investigated. For comparison purpose, antioxidant and antimicrobial activities of the PLHE was also determined. Overall, the droplet size and stability were affected by the concentration of emulsifiers and phase ratios. The double emulsion presented heterogeneous droplet size, good physical stability and non-Newtonian behavior. PLHE presented high antioxidant and antimicrobial activities, which was maintained after processing to encapsulation into double emulsion. In conclusion, it was possible to produce active and stable double emulsion loaded with PLHE. (AU)

• Processo FAPESP: 13/07914-8 - FoRC - Centro de Pesquisa em Alimentos
• Beneficiário: Bernadette Dora Gombossy de Melo Franco
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 16/18788-1 - Aplicação da microespectroscopia Raman e quimiometria na caracterização de microcarreadores poliméricos de compostos ativos e fotoativos
• Beneficiário: Milena Martelli Tosi
• Modalidade de apoio: Auxílio à Pesquisa - Regular