Mahmoudzadeh E, Nazemiyeh H, Valizadeh H, Khaleseh F, Mohammadi S, Hamedeyazdan S. Nanoencapsulation of n-butanol extract of
Symphytum kurdicum and
Symphytum asperrimum: Focus on phytochemical analysis, anti-oxidant and antibacterial activity.
Iran J Basic Med Sci 2022;
25:364-371. [PMID:
35656178 PMCID:
PMC9148405 DOI:
10.22038/ijbms.2022.62032.13760]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 02/19/2022] [Indexed: 11/17/2022]
Abstract
Objectives
The current study's objectives were to obtain different extracts and essential oils of Symphytum kurdicum and Symphytum asperrimum and to determine the chemical composition, as well as to evaluate free radical scavenging activity (IC50) and minimum bactericidal concentration (MBC), and the effect of liposomal formulation on antimicrobial properties.
Materials and Methods
Air-dried powdered aerial parts of S. kurdicum and S. asperrimum were used. The antioxidant and antibacterial properties, essential oil compositions, total phenol, and flavonoid contents of different fractions were determined by DPPH test, disk diffusion assay, gas chromatography-mass spectrometry, Folin-ciocalteu reagent, and colorimetric assay method, respectively. The film hydration method was used to fabricate nanoparticles.
Results
GC-MS analysis indicated that hexafarnesyl acetone was a major essential oil component. n-butanol and ethyl acetate extracts of S. kurdicum had the highest anti-oxidant activity. Extracts of both plants showed antimicrobial activity. The extracts' maximum inhibition zones against Staphylococcus epidermidis were established. A particle size analyzer detected the formulation size of 140 nm. The optimum formulation of liposomes contains the ratio of 75 mg lecithin, 25 mg cholesterol, and 50 mg herbal extract. Despite the nanoparticles' appropriate particle size, the liposomal extract's antimicrobial effect was lower than that of the free form.
Conclusion
Our findings demonstrated that extracts have significant antibacterial and anti-oxidant activities, attributed to their bioactive constituents.
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