Abstract
Latar Belakang : Asap rokok dan asap kendaraan bermotor dapat menyebabkan pencemaran udara. Apabila berlangsung dalam waktu lama akan menyebabkan penyakit degenerative. Kerusakan akibat radikal bebas dalam tubuh dapat diatasi oleh antioksidan. Daun srikaya mengandung antioksidan seperti flavonoid, total fenol, glikosida, alkaloid, saponin, tanin. Tujuan: menetapkan kadar flavonoid dan fenol dari daun srikaya yang diekstrak serta aktivitas antioksidan. Metode: Jenis penelitian ini menggunakan screening fitokimia, penentuan kadar flavonoid total dan uji aktifitas antioksidan daun srikaya dengan metode DPPH. Hasil: Daun srikaya 1 kg dengan pelarut etanol menghasilkan ekstrak dengan rendemen 29.312 g. Skrining fitokimia positif jika mengandung flavonoid, fenolik, alkaloid dan tanin. Kadar senyawa fenolik dan flavonoid sebesar 1.43 μg GAE/mg dan 0.0317 μg QE/mg, sedangkan nilai IC50 sebesar 60.437 ppm. Kesimpulan: Penelitian ini menunjukkan bahwa semakin besar kadar fenolik dan flavonoid total pada daun srikaya maka akan semakin tinggi aktivitas antioksidannya.Authors who publish with this journal agree to the following terms:
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ISSN Print:Â 2355-6498
ISSN Online:Â 2442-6555
Printed by LP2M IIK (Lembaga Penelitian dan Pengabdian Masyarakat Institut Ilmu Kesehatan) Bhakti Wiyata Kediri
