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http://repository.ipb.ac.id/handle/123456789/160861| Title: | Optimasi Ekstraksi Total Flavonoid dan Kapasitas Antioksidan Daun Jeruju Menggunakan Metode Two Level Half-Factorial Design |
| Other Titles: | Optimization of Total Flavonoid Extraction and Antioxidant Capacity of Jeruju Leaves Using Two Level Half-Factorial Design Method |
| Authors: | Nurcholis, Waras Ambarsari, Laksmi Rahmadyanti, Farina |
| Issue Date: | 2025 |
| Publisher: | IPB University |
| Abstract: | Tanaman jeruju (Acanthus ilicifolius) adalah semak dari keluarga Acanthaceae yang kaya flavonoid dan senyawa antioksidan lainnya. Tujuan penelitian ini untuk menentukan faktor-faktor yang memengaruhi ekstraksi daun jeruju, termasuk pH (2-6), konsentrasi etanol (20-80%), rasio cairan-padatan (10- 100 mL/g), waktu (30-300 menit), dan suhu (30-80°C) terhadap kadar flavonoid dan kapasitas antioksidan. Metode Two Level Half-Factorial Design digunakan untuk mengidentifikasi dan mengoptimalkan faktor-faktor ini. Hasil terbaik diperoleh dengan rasio cairan/padatan 100 mL/g, suhu 80°C, konsentrasi etanol
80%, waktu 300 menit, dan pH 6, menghasilkan 14,117 ± 0,527 mg QE/g BK flavonoid dan 220,275 ± 6,614 µmol TE/g BK kapasitas antioksidan. Faktor yang berpengaruh signifikan (p<0.05) adalah rasio cairan/padatan, suhu, dan konsentrasi etanol. Verifikasi optimasi menunjukkan hasil yang akurat dengan %RSE 0,8% untuk flavonoid dan 8,7% untuk kapasitas antioksidan. Kesimpulan dari penelitian ini rasio cairan/padatan, suhu, dan konsentrasi etanol memengaruhi ekstraksi flavonoid dari daun jeruju. Sea holly (Acanthus ilicifolius), a shrub from the Acanthaceae family, is rich in flavonoids and other antioxidants. This study aims to determine factors affecting the extraction of jeruju leaves, including pH (2-6), ethanol concentration (20-80%), liquid-solid ratio (10-100 mL/g), time (30-300 minutes), and temperature (30-80°C) on flavonoid content and antioxidant capacity. The Two Level Half-Factorial Design method was used to identify and optimize these factors. The best results were obtained with a liquid/solid ratio of 100 mL/g, temperature of 80°C, ethanol concentration of 80%, time of 300 minutes, and pH 6, yielding 14,117 ± 0,527 mg QE/g DW flavonoids and 220,275 ± 6,614 µmol TE/g DW antioxidant capacity. Factors that were significant (p<0.05) are the liquid/solid ratio, temperature, and ethanol concentration. Optimization verification showed accurate results with %RSE 0,8% for flavonoids and 8,7% for antioxidant capacity. In conclusion, the liquid/solid ratio, temperature, and ethanol concentration significantly affect flavonoid extraction from jeruju leaves. |
| URI: | http://repository.ipb.ac.id/handle/123456789/160861 |
| Appears in Collections: | UT - Biochemistry |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| cover_G84190015_b6d7113b8a204ca087e929daa136b3df.pdf | Cover | 465.25 kB | Adobe PDF | View/Open |
| fulltext_G84190015_46e7eaf2fca04ec3baade3c4603b9f4a.pdf Restricted Access | Fulltext | 1.09 MB | Adobe PDF | View/Open |
| lampiran_G84190015_3878a3cc1577465c82cbf5c0d48907da.pdf Restricted Access | Lampiran | 328.42 kB | Adobe PDF | View/Open |
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