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2 2024

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Phytochemical constituents and antioxidant activity of Ricinus communis Linn leaf and seeds extracts

Gassim Hani Bushra Mohamed, Hassan Afaf Mahmoud, Abadi Ragaa Satti Mohamed, Mustafa Yasir A. A.

Scientiae Radices

2024

Vol. 3, Iss. 2

74--88

The study investigates phytochemicals and antioxidant potential of leaf and seeds extracts of Ricinus communis L. Ricinus communis L. commonly known as castor plant belongs to the family Euphorbiacea. Phytochemical screening showed that both seeds and leaves of Ricinus communis L. have various secondary metabolites such as: tannins, flavonoids, alkaloids, triterpenes and coumarins, while anthraquinones were not detected. Antioxidant potentials were assessed on the basis of radical scavenging effect of the stable 1,1-diphenyl-2-picrylhydrazil (DPPH). Leaf methanol Soxhlet extract showed the maximum antioxidant activity (85±0.01%) with IC50 value of (0.121±0.02mg/ml). Seed methanol maceration extract showed high antioxidant activity (80.7±0.01%) while petroleum ether extracts of both leaf and seeds showed no antioxidant activity. Spectroscopic analysis using GC-MS of the methanol maceration extract of leaf showed the presence of various compounds such as n-hexadecanoic acid with the highest peak area 22.02%, 4-methoxy-1-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile with peak area 17.41%, gamonelic acid with peak area 10.40%, 2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one with peak area 4.84% and 2-pyrrolidinone with peak area 3.98%.

Arum cyrenaicum: a comprehensive review of phytochemistry and bioactivity

Alobaide Zubaida Nabil, Habel Azza, Awin Tahani, Buzgaia Nawal, Elamari Asma, Elteera Fatma, Elabbar Fakhri

Scientiae Radices

2024

Vol. 3, Iss. 3

218--227

Arum cyrenaicum is a native species found in Al Aljabal Al-Akhdar region, NE Libya. Despite the toxicity of Arum cyrenaicum, Libyans use it extensively for medicinal purposes, garden decoration and in traditional dishes. There is limited research on Arum cyrenaicum. The present review summarizes phytochemical studies of the plant and discusses in detail the pharmacological activities of 7 published findings. To provide information about Arum cyrenaicum, a literature search was conducted on electronic databases and google scholar.