@article {2216, title = {Quantification of Four Phytochemical Parameters of Imperata cylindrica Leaves to Promote Its Use as A Medicinal Plant}, journal = {Pharmacognosy Journal}, volume = {16}, year = {2024}, month = {February 2024}, pages = {108-117}, type = {Research Article}, chapter = {108}, abstract = {

Introduction: The benefits of Imperata cylindrica (I. cylindrica) leaves and their relationship to the content of phytochemical compounds have been widely studied. The aim of this study was to promote I. cylindrica leaves from Kertajati Subdistrict in Majalengka Regency in their use as a medicinal plant based on the four parameters, namely the content of total phenolic content, total flavonoid content, total tannin content, and antioxidant activity. The four parameters that become the basis for the benefits of the leaves were compared with the four parameters of the roots. Methods: Quantification of total phenolic content, total flavonoid content, total tannin content, and antioxidant activity used Folin-Ciocalteu, aluminium chloride, Fe(III) chloride and 1.10-Phenanthroline, and 1,1-diphenyl-2-pikrilhidrazil (DPPH) methods, respectively. All methods used visible spectrophotometric method. Results: The percentages of total phenolic content, total flavonoid content, total tannin content, and IC50 of antioxidant activity of I. cylindrica leaves extract were 9\% (GAE), 2.1\% (QE), 5.6\% (TAE), and 100.5 ppm, respectively. Then, the percentages of I. cylindrica roots extract showed the percentages of total phenolic content, total flavonoid content, total tannin content, and IC50 of antioxidant activity were 5.8\% (GAE), 0.64\% (QE), 3\% (TAE), and 241 ppm, respectively. Conclusion: The extract of I. cylindrica leaves contained the phenolic compound, namely flavonoids, tannins and other phenolic compounds, and had antioxidant activity. All parameters have been reported to have positive effect on health. Therefore, the leaves of I. cylindrica from Kertajati Subdistrict are discovered to have effects on health which are suitable to be promoted as a medicinal plant.

}, keywords = {antioxidant activity, Imperata cylindrica leaves, total flavonoid content, total phenolic content, Total Tannin content}, doi = {10.5530/pj.2024.16.15}, author = {Diah Dhianawaty and Resti Gradia Dwiwina and Wulan Mayasari and Achadiyani and Ruslin} } @article {1652, title = {Separation and Quantification of Sinensetin, Imperatorin and Total Tannin Content as Active Phytoconstituents of Methanol Extract of Imperata cylindrica Root from Kendari}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {September 2021}, pages = {1216-1224}, type = {Research Article}, chapter = {1216}, abstract = {

Introduction: Imperata cylindrica root methanol extract harvested from Kendari had anti-hypertensive activity stated in a study on hypertension rat models at the doses 60 and 90 mg/kg-bw. The extract also contained phenolic compound 1.53\% (GAE) and flavonoid 1.17\% (QE) and had antioxidant activity IC50 0.32 mg/mL. Aim of the study was to determine the active secondary metabolites in the extract. Materials and Method: Sinensetin and imperatorin in the extract were separated on silica gel 60 column, eluted with a gradient eluent system as follows (1) n-hexane- ethyl acetate (3:7); (2) n-hexane {\textendash} ethyl acetate (2:8); (3) ethyl acetate -MeOH (8:2), and (4) methanol. Imperatorin and sinensetin in fractions were identified and quantified by HPLC method with column LiChroCART 250-4,6 RP 18E, isocratic mobile phases with the composition of mixture as follows, 0.1\% formic acid, acetonitrile and methanol (40:50:10) respectively, and at temperature 400 C. The total tannin was determined by spectrophotometry method with Fe(III) chloride and 1.10-Phenanthroline at wave length 510 nm. Results: Imperatorin and sinensetin were identified in fractions 5 to 9. The concentrations of sinensetin and imperatorin in Imperata cylindrica root methanol extract were of 32.348 and 37.014 mg/kg extract, respectively. The total tannin content was 1.06 \% (w/w) (TAE). Conclusion: Imperata cylindrica root methanol extract from Kendari had active phytoconstituents, namely sinensetin, imperatorin, and tannin.

}, keywords = {Imperata cylindrica, Imperatorin, Sinensetin, Tannin}, doi = {10.5530/pj.2021.13.155}, author = {Diah Dhianawaty and Mas Rizky Anggun Adipurna Syamsunarno and Resti Gradia Dwiwina and Raden Anita Indriyanti and Ruslin} }