Comparative GC-MS Profiling, Phytochemical Screening, and Antioxidant Activity of Leaf and Flower Extracts of Bauhinia purpurea L. From Indonesia
Junairiah*, Anthony Daniel Santo Borosi, Anjar Tri Wibowo, Febri Dwi Irfansyah, Hafizh Rizqi Fadhlullah, Zelika Melnawati, Amalia Rizky Febrianti
Abstract
The search for natural antioxidants has intensified due to their potential role in reducing oxidative stress–related diseases. Bauhinia purpurea L. is a medicinal plant traditionally used in various regions; however, comparative information regarding the phytochemical composition and antioxidant activity of different plant organs remains limited. This study aimed to evaluate and compare the phytochemical profile and antioxidant activity of methanolic extracts obtained from the leaves and flowers of B. purpurea. Plant materials were extracted by maceration using methanol. Chemical constituents were identified using Gas Chromatography–Mass Spectrometry (GC–MS), while qualitative phytochemical screening was performed to detect major secondary metabolites. Antioxidant activity was assessed using the DPPH radical scavenging assay and expressed as IC₅₀ values. GC–MS analysis identified 19 compounds in both leaf and flower extracts, with myo-inositol detected as the dominant component. Phytochemical screening revealed the presence of alkaloids and saponins in both organs, while flavonoids were detected exclusively in the flower extract. The flower extract exhibited stronger antioxidant activity (IC₅₀ = 88.85 ppm) compared to the leaf extract (IC₅₀ = 169.96 ppm). The higher antioxidant activity observed in the flower extract is likely associated with its flavonoid content and more diverse chemical composition. These results indicate that B. purpurea flowers represent a promising natural source of antioxidant compounds.
Keywords
Bauhinia purpurea; antioxidant; secondary metabolite
Cite This Article
Junairiah, Borosi, A. D. S., Wibowo, A. T., Irfansyah, F. ?D., Fadhlullah, H. R., Melnawati, Z., Febrianti, A. R. (2026). Comparative GC-MS Profiling, Phytochemical Screening, and Antioxidant Activity of Leaf and Flower Extracts of Bauhinia purpurea L. From Indonesia. International Journal of Scientific Advances (IJSCIA), Volume 7| Issue 1: Jan – Feb 2026, Pages 67-71 URL: https://www.ijscia.com/wp-content/uploads/2026/01/Volume7-Issue1-Jan-Feb-No.1018-67-71.pdf
Volume 7 | Issue 1: Jan – Feb 2026
