Phytochemical Screening, Total Phenolic Contents and Antioxidant Activity ofSyzygium caryophyllatumandSyzygium densiflorum

Abstract

To search the new sources of antioxidants, leaves of Syzygium caryophyllatum and Syzygium densiflorum were screened for total phenolics and antioxidant activity. The leaves of the plants were extracted with hexane, ethyl acetate and methanol, and screened for their phytochemicals, phenolic content (TPC), and flavonoid content (TFC) and antioxidant activity. Phytochemical analysis of the both plants revealed the existence of flavonoids, tannins, glycosides, terpenoids and protein. Phenolic and flavonoid contents presents in both plants were varied with respect to solvents. Methanol extract of S. caryophyllatum exhibited highest DPPH radical scavenging activity and ferric reducing power followed by ethyl acetate and hexane extracts (81.97, 78.69, 34.34 % and 0.978, 0.916 & 0.691 %). Ethyl acetate extract of S. densiflorum exhibited highest DPPH radical scavenging activity and ferric reducing power (98.76, 87.36 & 43.39) and (1.560, 1.037 & 0.604). In conclusion, these plants are rich sources of phenolic compounds and antixodants and they could be used as natural antioxidant.

In Vitro Antioxidant and Antidiabetic Potentials of Syzygium caryophyllatum L. Alston

“…A previous study on DPPH radical scavenging activity of the S. caryophyllatum leaves has reported DPPH inhibition activity in methanol extract with 81.97%, followed by EA (78.69%) and Hex fraction (34.34%) at the concentration of 100 μ g/mL [ 14 ]. Annadurai et al [ 31 ] have reported DPPH scavenging activity for the EA fraction of S. caryophyllatum leaves as 86.14% inhibition at a concentration of 400 μ g/mL.…”

“…Annadurai et al [ 31 ] have reported DPPH scavenging activity for the EA fraction of S. caryophyllatum leaves as 86.14% inhibition at a concentration of 400 μ g/mL. Subramanian et al [ 14 ] and the present study show similar results for the EA fraction with a value of 72.92% inhibition at the concentration of 150 μ g/mL. A previous study carried out by sequential extraction method for leaves and fruits has reported having IC 50 value for DPPH scavenging activity in methanol as 34.9 ± 1.2 μ g/mL and 69.4 ± 0.7 μ g/mL, respectively, which showed high activity compared to the present study [ 15 ].…”

“…Syzygium caryophyllatum ( Sinhala : Heendan) is one of the species that has been classified as endangered species under the International Union for Conservation of Nature (IUCN) and is native to Sri Lanka and India [ 13 ]. In India, S. caryophyllatum plant has been studied for its antibacterial and antioxidant activities using some in vitro antioxidant assays [ 14 ]. However, this is the 1 st Sri Lankan study to report the antioxidant activities and antidiabetic activities of S. caryophyllatum .…”

Antidiabetogenic action of jamun syzygium cumini skeels: a review

“…Jamun contains magnesium, iron, manganese, calcium, copper, zinc, phosphorus, potassium, nitrogen, and sulfur as micronutrients. [16][17][18][19][20][21][22][23] Flavonoids, terpenoids, tannins, and carbohydrates have been detected in the ethanol extract of Jamun leaves whereas carbohydrates were detected in the chloroform, ethyl acetate, and methanol extracts. 24 Acetone extract of Jamun leaves possessed glycosides, phenols, saponins, proteins, and resins whereas stem bark extract contained alkaloids and flavonoids.…”

Biochemical and phylogenetic analysis of Eugenia and Syzygium species from Mauritius

“…Comparable results were obtained previously with S. caryophyllatum and S. densiflorum and endemic Eugenia species. (Subramanian et al, 2014;Eshwarappa et al, 2014;Brunchault et al, 2014).…”