Hermawati, Euis (2017) Pemeriksaan Kadar Flavonoid Total, Kadar Fenol Total, dan Aktivitas Antioksidan Ekstrak Metanol Daun Selada Air (Nastutrium officinalle R.Br.) Berdasarkan Perbedaan Umur Panen. Sarjana thesis, Universitas Garut.
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Abstract
Telah dilakukan penelitian tentang pemeriksaan kadar flavonoid total, kadar fenol total, dan aktivitas antioksidan ekstrak metanol daun selada air (Nastutrium officinale R.Br.) berdasarkan perbedaan umur panen. Pada penelitian flavonoid total dengan metode kolorimetri menggunakan AlCl3, penetapan kadar fenol total menggunakan pereaksi Folin-Ciocalteu, dan pengujian aktivitas antioksidan menggunakan metode DPPH (2,2-Difenil-1-Pikrihidrazil). Hasil penetapan kadar flavonoid total tertinggi yaitu ekstrak metanol daun selada air umur panen 30 hari sebesar 6,705 mgQE/100 gram sampel, untuk kadar fenol total tertinggi yaitu ekstrak metanol daun selada air umur panen 30 hari sebesar 12,046 mgGAE/100 gram sampel, dan pengujian aktivitas antioksidan ekstrak metanol daun selada air umur panen 15 hari sebesar 560,418 µg/mL dan umur panen 30 hari sebesar 463,635 µg/mL menunjukkan aktivitas antioksidan yang tergolong sangat lemah. Hasil penapisan fitokimia simplisia mengandung senyawa flavonoid, fenol, tanin, kuinon, saponin, dan steroid/triterpenoid.
Item Type: | Thesis (Sarjana) |
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Uncontrolled Keywords: | Daun selada air umur panen 15 Hari, umur panen 30 hari, kadar flavonoid, kadar fenol, antioksidan, DPPH |
Subjects: | Kimia Bahan Alam > Antioksidan |
Divisions: | Fakultas Matematika dan IPA > S1 Farmasi |
Depositing User: | S.S.I. Nenden Sri Aprianti |
Date Deposited: | 08 Aug 2025 08:09 |
Last Modified: | 08 Aug 2025 08:09 |
URI: | https://eprints.fmipauniga.ac.id/id/eprint/411 |