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Title: Bioactive bacterial nanocellulose membranes enriched with eucalyptus globulus labill. leaves aqueous extract for anti-aging skin care applications
Author: Almeida, Tânia
Moreira, Patrícia
Sousa, Fábio J.
Pereira, Cláudia
Silvestre, Armando J. D.
Vilela, Carla
Freire, Carmen S. R.
Keywords: Bacterial nanocellulose
Eucalyptus globulus Labill
Aqueous extract
Antioxidant activity
Sheet facial masks
Skin care applications
Issue Date: Mar-2022
Publisher: MDPI
Abstract: Bacterial nanocellulose (BNC) membranes, with remarkable physical and mechanical properties, emerged as a versatile biopolymeric carrier of bioactive compounds for skin care applications. In this study, BNC membranes were loaded with glycerol (as plasticizer and humectant agent) and different doses (1–3 μg cm−2) of an aqueous extract obtained from the hydro-distillation of Eucalyptus globulus Labill. leaves (HDE), for application as sheet facial masks. All membranes are resistant and highly malleable at dry and wet states, with similar or even better mechanical properties than those of a commercial BNC mask. Moreover, the HDE was found to confer a dose-dependent antioxidant activity to pure BNC. Additionally, upon 3 months of storage at 22–25 °C and 52% relative humidity (RH) or at 40 °C and 75% RH, it was confirmed that the antioxidant activity and the macroscopic aspect of the membrane with 2 μg cm−2 of HDE were maintained. Membranes were also shown to be non-cytotoxic towards HaCaT and NIH/3T3 cells, and the membrane with 2 μg cm−2 of HDE caused a significant reduction in the senescence-associated β-galactosidase activity in NIH/3T3 cells. These findings suggest the suitability and potential of the obtained membranes as bioactive facial masks for anti-aging applications.
Peer review: yes
DOI: 10.3390/ma15051982
ISSN: 1996-1944
Publisher Version:
Appears in Collections:CICECO - Artigos
DQ - Artigos

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