MOCHAMAD YOGA ISWARA, - (2020) OPTIMASI METODE REFLUKS PADA RIMPANG JAHE MERAH (Zingiber officinnale Rosc Var. Rubrum) MENGGUNAKAN ETANOL 50% DENGAN PENGUJIAN KADAR TOTAL FLAVONOID DAN KADAR TOTAL FENOL. Skripsi thesis, Sekolah Tinggi Farmasi Indonesia.
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Abstract
Jahe merah merupakan tanaman obat berupa tumbuhan rumpun berbatang semu, termasuk keluarga Zingiberaceae. Jahe merah banyak dimanfaatkan untuk mengobati berbagai macam penyakit seperti masuk angin, gangguan pencernaan, antiinflamasi, dan juga analgesik. Penelitian ini bertujuan untuk mengetahui kadar Total Flavonoid dan Kadar Total Fenol dari jahe merah. Metode ekstraksi pada penelitian ini menggunakan refluks dengan pelarut etanol 50%, dan menggunakan variasi suhu serta waktu ekstraksi. Metode pengujian kadar flavonoid dilakukan dengan menggunakan metode kompleks: AlCl3, sedangkan untuk pengujian kadar total fenol dilakukan dengan metode Follin-Ciiocalteu, selanjutnya pengukuran absorbansi menggunakan Spektrofotometri UV-Vis pada panjang gelombang fenol 739 nm dan flavonoid 437 nm. Hasil penelitian didapatkan rendemen ekstrak sebesar 13,988%, uji fitokimia ekstrak rimpang jahe merah positif mengandung senyawa fenol dan flavonoid. Kadar total fenol ekstrak etanol rimpang jahe merah sebesar 14.249 gr GAE/100 gr sedangkan kadar total flavonoid sebesar 0.510 gr QE/100 gr. Pada penentuan kadar flavonoid dan fenol menunjukan hasil tertinggi pada jahe merah dengan suhu 60°C dengan waktu ekstraksi 120 menit. --- Red ginger is a medicinal plant in the form of clumps of pseudo-trunk, including the Zingiberaceae family. Red ginger is widely used to treat various diseases such as colds, indigestion, anti-inflammatory, and analgesic. This study aims to determine the levels of total flavonoids and levels of total phenols from red ginger. The extraction method in this study uses reflux with 50% ethanol as a solvent and uses variations in temperature and extraction time. The method of testing flavonoid levels was carried out using complex method: AlCl3, while testing the total phenol content was carried out by the Follin-Ciocalteu method, then measuring the absorbance using UV-Vis spectrophotometry at a phenol wavelength of 739 nm and 437 nm of flavonoids. The results showed that extract yield was 13.988%, the phytochemical test, the red ginger rhizome extract was positive for phenol and flavonoid compounds. The total phenol content of the red ginger rhizome extract was 14,249 gr GAE / 100 gr, while the total flavonoid content was 0.510 gr QE / 100 gr. In determining the levels of flavonoids and phenols, the highest yields were found in red ginger with a temperature of 60 ° C with an extraction time of 120 minutes.
| Item Type: | Thesis (Skripsi) |
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| Uncontrolled Keywords: | Jahe merah (Zingiber officinale Roscoe), Refluks, Total Kadar Flavonoid, Total Kadar Fenol. --- Red ginger (Zingiber officinale Roscoe), Reflux, Total Flavonoid Levels, Total Phenol Levels. |
| Subjects: | Q Science > Q Science (General) R Medicine > R Medicine (General) |
| Divisions: | Program Studi S1 Farmasi |
| Depositing User: | pustakawan - - |
| Date Deposited: | 03 Oct 2024 04:40 |
| Last Modified: | 03 Oct 2024 04:40 |
| URI: | http://repository.stfi.ac.id/id/eprint/1314 |
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