Fitokimia, Kadar Fenolik Total, dan Flavonoid Total serta Aktivitas Antioksidan Ekstrak n-Heksana Rimpang Temu Hitam (Curcuma aeruginosa Roxb)

Auliya Ilmiawati (Department of Chemistry Faculty of Mathematics and Natural Sciences, Institut Pertanian Bogor)
Ika Resmeiliana (Program Studi Analisis Kimia, Sekolah Vokasi IPB, Kota Bogor)
Ishika Jauza Nasywa (Program Studi Analisis Kimia, Sekolah Vokasi IPB, Kota Bogor)
Fadia Fahira (Program Studi Analisis Kimia, Sekolah Vokasi IPB, Kota Bogor)
Nafisa Muthia Wafa (Program Studi Analisis Kimia, Sekolah Vokasi IPB, Kota Bogor)
M. Raffi Rayandhika (Program Studi Analisis Kimia, Sekolah Vokasi IPB, Kota Bogor)
Andi Thaariq Muhammad (Program Studi Analisis Kimia, Sekolah Vokasi IPB, Kota Bogor)
Arini Septianti (Program Studi Analisis Kimia, Sekolah Vokasi IPB, Kota Bogor)
Hafizah Fatunisa (Program Studi Analisis Kimia, Sekolah Vokasi IPB, Kota Bogor)

Jurnal Riset Kimia
Vol. 14 No. 2 (2023): September

The rhizome of black turmeric (Curcuma aeruginosa) is a plant rich in benefits and has been used as a herbal medicine to treat various health problems. This study aims to obtain the n-hexane extract of black turmeric rhizome and perform phytochemical tests, determine total phenolic and total flavonoid levels, as well antioxidant tests using the DPPH method. Extraction of n-hexane from black turmeric rhizome obtained yield of 4.88%, total phenolic content of 3.01 mg QE/g extract and total flavonoids of 6.31 mg QE/g extract. The phytochemical test obtained positive results for the presence of alkaloids and flavonoids; negative tannins, steroids/triterpenoids and saponins. Antioxidant tests using the DPPH method obtained the percentage of DPPH capture ranging from 76-78%, with the largest percentage value obtained when the extract concentration was 125 ppm, which was 78.02%. This shows that black turmeric n-hexane extract has weak antioxidant activity.