Physicochemical characterization and antimicrobial activity in novel systems containing buriti oil and structured lipids nanoemulsions.
Biotechnol Rep (Amst)
; 24: e00365, 2019 Dec.
Article
em En
| MEDLINE
| ID: mdl-31463206
ABSTRACT
Buriti oil nanoemulsions were prepared using non-interesterified buriti oil or buriti oil interesterified for 6 or 24â¯h (NBO, NBO6h, and NBO24â¯h), respectively. The aim was to investigate the effects of interesterified oils on the physicochemical and biological properties of nanoemulsions. Samples were stored at 4 and 25⯰C for 30 days, and their physicochemical properties and biological activities were evaluated. The mean droplet diameter of nanoemulsions ranged from 196 to 270â¯nm. NBO24â¯h had the smallest droplet size and was the most stable during the storage period. Furthermore, NBO24â¯h demonstrating the good oxidative stability, had a high antioxidant capacity, and was less susceptible to droplet aggregation. NBO and NBO24â¯h had similar biological activity against Gram-negative bacteria (Escherichia coli O157 H7); bacterial growth was inhibited by at least 60% at 3.12â¯mgâ¯mL-1. The nanoemulsions have interesting properties for the production of pharmaceutical, cosmetic, and food formulations with antimicrobial activity.
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MEDLINE
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En
Ano de publicação:
2019
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Article