posted on 2016-02-19, 02:35authored byAndreia Ascenso, Sónia Pinho, Carla Eleutério, Fabíola Garcia Praça, Maria
Vitória Lopes Badra Bentley, Helena Oliveira, Conceição Santos, Olga Silva, Sandra Simões
This experimental work aimed to develop
a simple, fast, economic,
and environmentally friendly process for the extraction of lycopene
from tomato and incorporate this lycopene-rich extract into ultradeformable
vesicular nanocarriers suitable for topical application. Lycopene
extraction was conducted without a cosolvent for 30 min. The extracts
were analyzed and incorporated in transfersomes and ethosomes. These
formulations were characterized, and the cellular uptake was observed
by confocal microscopy. Dermal delivery of lycopene formulations was
tested under in vitro and in vivo conditions. Lycopene extraction proved to be quite safe and selective.
The vesicular formulation was taken up by the cells, being more concentrated
around the nucleus. Epicutaneous application of lycopene formulations
decreased the level of anthralin-induced ear swelling by 97 and 87%,
in a manner nonstatistically different from the positive control.
These results support the idea that the lycopene-rich extract may
be a good alternative to the expensive commercial lycopene for incorporation
into advanced topical delivery systems.