DESI RIYANAWATI, - (2025) ISOLASI SENYAWA FLAVONOID DARI DAUN JAMBU BIJI, MIANA, BENALU SAWO, MANGGA, SAWO DAN KEMANGI. Skripsi thesis, Sekolah Tinggi Farmasi Indonesia.
![[img]](http://repository.stfi.ac.id/style/images/fileicons/text.png) |
Text
S_PSSF_A242007_Title.pdf Download (626kB) |
|
Text
S_PSSF_A242007_Chapter1.pdf Restricted to Repository staff only Download (227kB) |
|
Text
S_PSSF_A242007_Chapter2.pdf Restricted to Repository staff only Download (399kB) |
|
Text
S_PSSF_A242007_Chapter3.pdf Restricted to Repository staff only Download (279kB) |
|
Text
S_PSSF_A242007_Chapter4.pdf Restricted to Repository staff only Download (542kB) |
|
Text
S_PSSF_A242007_Chapter5.pdf Restricted to Repository staff only Download (137kB) |
|
Text
S_PSSF_A242007_Appendix.pdf Restricted to Repository staff only Download (2MB) |
Abstract
Flavonoid merupakan senyawa metabolit sekunder golongan polifenol yang memiliki berbagai aktivitas biologis seperti antioksidan, antibakteri, antiinflamasi, dan antikanker. Penelitian ini bertujuan untuk mengisolasi dan mengidentifikasi senyawa golongan flavonoid dari enam jenis daun, yaitu jambu biji (Psidium guajava L.), miana (Plectranthus scutellarioides (L.) R. Br.), benalu sawo (Helixanthera sp.), mangga (Mangifera indica L.), sawo (Manilkara zapota L.), dan kemangi (Ocimum sanctum L.). Isolasi dilakukan dengan metode maserasi menggunakan pelarut etil asetat selama 15 menit, kemudian dimurnikan dengan etanol dan n-heksana secara bertahap. Hasil menunjukkan bahwa pelarut etil asetat efektif dalam mengisolasi senyawa golongan flavonoid. Kadar air daun segar berkisar antara 53,43–89,69%, hasil uji fitokimia menunjukkan seluruh sampel positif flavonoid dengan perubahan warna jingga hingga merah. Analisis spektrofotometri UV-Vis memperlihatkan pita serapan pada 200–280 nm dan 300– 390 nm. Hasil semua sampel pada analisis FTIR menunjukkan gugus O–H, C=O, C=C aromatik, dan C–H aromatik dan titik leleh isolat berkisar antara 130–180 °C. ------ Flavonoids are secondary metabolites belonging to the polyphenol group that have various biological activities such as antioxidants, antibacterials, antiinflammatory, and anticancer. This study aims to isolate and identify compounds belonging to the flavonoid group from six types of leaves, namely guava (Psidium guajava L.), miana (Plectranthus scutellarioides (L.) R. Br.), mistletoe (Helixanthera sp.), mango (Mangifera indica L.), sapodilla (Manilkara zapota L.), and basil (Ocimum sanctum L.). Isolation was performed maceration method using ethyl acetate solvent for a duration of 15 minutes, then purified using ethanol and n-hexane sequentially. The results showed that ethyl acetate solvent is effective in isolating flavonoid group compounds. The water content of fresh leaves ranged from 53.43–89.69%, the results of phytochemical tests confirmed that all samples were positive for flavonoids, as shown by a color change from orange to red.UVVis spectrophotometric analysis showed absorption bands at 200–280 nm and 300– 390 nm. The results of all samples in FTIR rwvwaled the presence of aromatic O– H, C=O, C=C, and C–H groups and the melting point of the isolate ranged from 130–180 °C.
| Item Type: | Thesis (Skripsi) |
|---|---|
| Uncontrolled Keywords: | Isolasi flavonoid, spektrofotometri UV-Vis, FTIR, Titik leleh. ------- Isolation flavonoid, UV-Vis spectrophotometry, FTIR, Melting point. |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Program Studi S1 Farmasi |
| Depositing User: | pustakawan - - |
| Date Deposited: | 20 Nov 2025 07:08 |
| Last Modified: | 20 Nov 2025 07:08 |
| URI: | http://repository.stfi.ac.id/id/eprint/3544 |
Actions (login required)
 |
View Item |
