Mengidentifikasi Senyawa Flavonoid Menggunakan Limbah Kulit Bawang Merah (Allium cepa.L) dengan Spektrofotometri UV-Vis

Andrian Supriatna (Fakultas Farmasi, Universitas Buana Perjuangan Karawang, Indonesia)
Bunga Regista Cahyani (Fakultas Farmasi, Universitas Buana Perjuangan Karawang)
Febriani Dwi Anzaini (Fakultas Farmasi, Universitas Buana Perjuangan Karawang, Indonesia)
Nabilla Putri Nurizha (Fakultas Farmasi, Universitas Buana Perjuangan Karawang)
Reza Akbar Fadilla (Fakultas Farmasi, Universitas Buana Perjuangan Karawang)
Ermi Abriyani (Fakultas Farmasi, Universitas Buana Perjuangan Karawang)

COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat
Vol. 2 No. 09 (2023): COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat

Onion skin (Allium cepa L.) waste from the household industry is largely unutilized. This is unfortunate because shallot skin contains many compounds that can be utilized, one of which is flavonoids which have potential as antioxidants. In this study, methanol was used as a solvent to extract shallot skin. Antioxidant activity test was conducted using CR (Cerium (IV) Sulfate) method. From the UV-Vis spectra, it can be concluded that this flavonoid belongs to the flavonol group and is seen in the wavelength range between 240-285 nm (band II) and 300-550 nm (band I).