|
1
|
Dalmagro M, Pinc MM, Donadel G, Tominc GC, Jacomassi E, Lourenço ELB, Gasparotto Junior A, Boscarato AG, Belettini ST, Alberton O, Prochnau IS, Bariccatti RA, de Almeida RM, Rossi de Aguiar KMF, Hoscheid J. Bioprospecting a Film-Forming System Loaded with Eugenia uniflora L. and Tropaeolum majus L. Leaf Extracts for Topical Application in Treating Skin Lesions. Pharmaceuticals (Basel) 2023; 16:1068. [PMID: 37630984 PMCID: PMC10459946 DOI: 10.3390/ph16081068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/23/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
Natural products can be used as complements or as alternatives to synthetic drugs. Eugenia uniflora and Tropaeolum majus are natives of Brazil and have antimicrobial, anti-inflammatory, and antioxidant activities. This study aimed to develop a film-forming system (FFS) loaded with plant extracts with the potential for treating microbial infections. E. uniflora and T. majus leaf extracts were prepared and characterized, and the individual and combined antioxidant and antimicrobial activities were evaluated. The FFS was developed with different concentrations of polyvinylpyrrolidone (PVP) and polyvinyl alcohol (PVA) and analyzed for physicochemical characteristics. The combination of extracts showed a superior antioxidant effect compared to the individual extracts, justifying the use of the blend. FFS prepared with 4.5% PVA, 4.5% PVP, 7.81% E. uniflora extract, and 3.90% T. majus extract was adhesive, lacked scale formation, presented good malleability, and had a suitable pH for topical application. In addition, the viscosity at rest was satisfactory for maintaining stability; water solubility was adequate; skin permeation was low; and the antimicrobial effect was superior to that of the individual extracts. Therefore, the developed FFS is promising for the differentiated treatment of skin lesions through topical application.
Collapse
Affiliation(s)
- Mariana Dalmagro
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama 87502-210, Brazil; (M.D.); (M.M.P.); (G.D.); (G.C.T.); (E.J.); (E.L.B.L.); (A.G.B.); (S.T.B.); (O.A.)
| | - Mariana Moraes Pinc
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama 87502-210, Brazil; (M.D.); (M.M.P.); (G.D.); (G.C.T.); (E.J.); (E.L.B.L.); (A.G.B.); (S.T.B.); (O.A.)
| | - Guilherme Donadel
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama 87502-210, Brazil; (M.D.); (M.M.P.); (G.D.); (G.C.T.); (E.J.); (E.L.B.L.); (A.G.B.); (S.T.B.); (O.A.)
| | - Getulio Capello Tominc
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama 87502-210, Brazil; (M.D.); (M.M.P.); (G.D.); (G.C.T.); (E.J.); (E.L.B.L.); (A.G.B.); (S.T.B.); (O.A.)
| | - Ezilda Jacomassi
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama 87502-210, Brazil; (M.D.); (M.M.P.); (G.D.); (G.C.T.); (E.J.); (E.L.B.L.); (A.G.B.); (S.T.B.); (O.A.)
| | - Emerson Luiz Botelho Lourenço
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama 87502-210, Brazil; (M.D.); (M.M.P.); (G.D.); (G.C.T.); (E.J.); (E.L.B.L.); (A.G.B.); (S.T.B.); (O.A.)
| | - Arquimedes Gasparotto Junior
- Laboratory of Cardiovascular Pharmacology (LaFaC), Faculty of Health Sciences, Federal University of Grande Dourados, Dourados 79804-970, Brazil;
| | - André Giarola Boscarato
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama 87502-210, Brazil; (M.D.); (M.M.P.); (G.D.); (G.C.T.); (E.J.); (E.L.B.L.); (A.G.B.); (S.T.B.); (O.A.)
| | - Salviano Tramontin Belettini
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama 87502-210, Brazil; (M.D.); (M.M.P.); (G.D.); (G.C.T.); (E.J.); (E.L.B.L.); (A.G.B.); (S.T.B.); (O.A.)
| | - Odair Alberton
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama 87502-210, Brazil; (M.D.); (M.M.P.); (G.D.); (G.C.T.); (E.J.); (E.L.B.L.); (A.G.B.); (S.T.B.); (O.A.)
| | - Inara Staub Prochnau
- School of Medicine and Life Sciences, Pontifical Catholic University of Paraná, Toledo 85902-532, Brazil;
| | | | - Rafael Menck de Almeida
- Synthetica Research and Technical Analysis Ltda., Capela do Alto, São Paulo 18195-000, Brazil;
| | | | - Jaqueline Hoscheid
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama 87502-210, Brazil; (M.D.); (M.M.P.); (G.D.); (G.C.T.); (E.J.); (E.L.B.L.); (A.G.B.); (S.T.B.); (O.A.)
| |
Collapse
|
|
2
|
Platanus hybrida’s Phenolic Profile, Antioxidant Power, and Antibacterial Activity against Methicillin-Resistant Staphylococcus aureus (MRSA). HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8030243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Methicillin-resistant S. aureus (MRSA) are a threat to public health as they frequently reveal a multidrug-resistant pattern. Researchers all over the world are on an urgent hunt for new treatments to help fight infections before antibiotics become obsolete, and some natural alternatives, such as polyphenols, have already exhibited therapeutic properties. Therefore, this study aimed to determine the phenolic profile, antioxidant capacity, and antimicrobial activity against MRSA of the leaf, fruit, and stem bark extracts of Platanus hybrida. The polyphenols were extracted with a water/ethanol (20:80) mixture and the methodology included HPLC-DAD, DPPH, FRAP, and CuPRAC. To address this issue from a One Health perspective, the Kirby–Bauer disc diffusion method was performed against nine MRSA strains from three different sources (livestock, wild animals, and humans). Fourteen phenolics were identified and the leaf extract showed the highest phenolic content, followed by the fruit extract. The leaf extract also showed the highest antioxidant capacity while the fruit extract had the lowest antioxidant capacity. Both leaf and fruit extracts inhibited the growth of strains from all sources, while the stem bark extract did not inhibit the growth of human strains. This work highlights the complex chemical composition and the antioxidative and antimicrobial potential of extracts derived from P. hydrida.
Collapse
|