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1.
Heliyon ; 10(11): e32335, 2024 Jun 15.
Article in English | MEDLINE | ID: mdl-38933965

ABSTRACT

A comprehensive study of fruits and leaves extracts of Citrus medica var. sarcodactylis Swingle and Limonia acidissima L. family Rutaceae was accomplished to investigate their antiviral activity along with their zinc oxide nanoparticles formulation (ZnONPs) against the avian influenza H5N1 virus. A thorough comparative phytochemical investigation of C. medica and L.acidissima leaves and fruits was performed using UPLC-QTOF-MS-MS. Antiviral effects further aided by molecular docking proved the highly significant potential of using C. medica and L.acidissima extracts as medicinal agents. Antiviral potency is ascendingly arranged as L. acidissima leaves (LAL) > L. acidissima fruits (LAF) > C. medica leaves (CML) at 160 µg. Nano formulation of LAF has the most splendid antiviral upshot. The metabolomic profiling of CMF and LAL revealed the detection of 48 & 74 chromatographic peaks respectively. Docking simulation against five essential proteins in survival and replication of the influenza virus revealed that flavonoid di-glycosides (hesperidin, kaempferol-3-O-rutinoside, and kaempferol-7-neohesperidoside) have shown great affinity toward the five investigated proteins and achieved docking scores which approached or even exceeded that achieved by the native ligands. Hesperidin has demonstrated the best binding affinity toward neuraminidase (NA), haemagglutinin (HA), and polymerase protein PB2 (-10.675, -8.131, and -10.046 kcal/mol respectively. We propose using prepared crude methanol extracts of both plants as an antiviral agent.

2.
Nat Prod Res ; : 1-5, 2023 Aug 23.
Article in English | MEDLINE | ID: mdl-37610160

ABSTRACT

Antimicrobial potential of Citrus medica var. sarcodactylis (Siebold ex Hoola van Nooten) Swingle and Limonia acidissima L. fruits and leaves extracts CMF, CML, LAF and LAL, respectively were evaluated. Gas chromatography-mass spectrometry (GC-MS) analysis for lipoidal matters revealed a high percentage of non-oxygenated compounds. Phytol was the major in LAL. Palmitic and linoleic acid were the major in CML and LAL, respectively. Rutin and P-hydroxy benzoic acid were the main compounds identified by High-performance liquid chromatography (HPLC) analysis. The antibacterial and antifungal activities of the plants extract were determined by the well diffusion method. Antimicrobial investigation for different successive fractions of active methanol extracts of CML, LAL, LAF and CMF showed the highest activity (CML), whereas the petroleum ether (CML PE) and MeOH (CML) fractions exhibit a significant antifungal activity against Candida albicans minimum inhibitory concentration (MIC) 12 and 15 µg/mL, respectively. The antifungal activity prevailed by C. medica leaves may be attributed to its polyphenolics (rutin, chlorogenic and rosmarinic acid) in addition to phenylated hydrocarbon.

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