Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/89419
Título: | Low energy nanoemulsions as a carrier of thyme and lemon balm essential oils |
Autor(es): | Sampaio, Cátia I. Bourbon, Ana Isabel Juncá Sottomayor Lisboa Gonçalves, Catarina Pastrana, Lorenzo M. Dias, Alice Cerqueira, Miguel Ângelo Parente Ribeiro |
Palavras-chave: | Lemon balm oil Low energy emulsification Thyme oil Nanoencapsulation |
Data: | 15-Jan-2022 |
Editora: | Elsevier 1 |
Revista: | LWT - Food Science and Technology |
Citação: | Sampaio, C. I., Bourbon, A. I., Gonçalves, C., Pastrana, L. M., Dias, A. M., & Cerqueira, M. A. (2022, January). Low energy nanoemulsions as carriers of thyme and lemon balm essential oils. Lwt. Elsevier BV. http://doi.org/10.1016/j.lwt.2021.112748 |
Resumo(s): | The aim of this work was to produce monomodal and stable thyme and lemon balm-loaded nanoemulsions (NE), through a low energy approach. NEs were prepared by the emulsion phase inversion method using sunflower oil as carrier and Tween 80 as surfactant. Different surfactant-to-oil ratios (SOR) and essential oil (EO) loadings were evaluated. Nanoemulsions presented a monomodal diameter distribution below 200 nm and high negative zeta potential (>-40 mV). Nanoemulsions loaded with EOs were physically stable for 3 months at 4 degrees C and 20 degrees C. Nanoemulsions with thyme EO presented the highest radical scavenging activity by DPPH and ABTS tests. Loaded nanoemulsions were not effective against Escherichia coli but could inhibit Staphylococcus aureus. Cytotoxicity studies using cell counting kit-8 and resazurin assays revealed a dose-responsive effect of nanoemulsions on Caco-2 cells after incubation for 24 h. A concentration of 100 mu g oil/mL of NE for unloaded and thyme loaded and 50 mu g oil/mL of NE for lemon balm loaded showed to be safe to use. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/89419 |
DOI: | 10.1016/j.lwt.2021.112748 |
ISSN: | 0023-6438 |
Versão da editora: | https://www.sciencedirect.com/science/article/pii/S0023643821019010 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Low energy nanoemulsions as a carrier of thyme and lemon balm essential oils.pdf | 334,72 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons