Kuersetin dan Kuersetin-3-O-Glukosida dari Kulit Batang Sonneratia Alba (Lythraceae)

. Horizon (Padjajaran University)
Betry Pujiastuti (Harizon1,2, Betry Pujiastuti1, Dikdik Kurnia1, Dadan Sumiarsa1, Unang Supratman1, Yoshihito Shiono3 1Kelompok Penelitian Kimia Organik Bahan Alam, Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Padjadjaran, Jalan Raya Bandu)
Dikdik Kurnia (Harizon1,2, Betry Pujiastuti1, Dikdik Kurnia1, Dadan Sumiarsa1, Unang Supratman1,)
Dadan Sumiarsa (Kelompok Penelitian Kimia Organik Bahan Alam, Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang Km 21, Jatinangor 45363, Sumedang, Indonesia.)
Unang Supratman (Kelompok Penelitian Kimia Organik Bahan Alam, Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang Km 21, Jatinangor 45363, Sumedang, Indonesia.)
Yoshihito Shiono (Laboratory of Natural Products Chemistry,Department of Bioresources Engineering, Faculty of Agriculture, Yamagata University, 1-23 Wakabamachi, Tsuruoka 997-8555, Japan)

VALENSI
Jurnal Kimia VALENSI Volume 1, No. 1, Mei 2015

Two flavonoid compounds, quercetin (1) and quercetin-3-O-glucoside (2) have been isolated from the bark of Sonneratia alba (Lythraceae). Chemical structure of both compounds were determined on the basis of spectroscopic data and comparison with those spectra data previously reported. Compound 1 and 2 exhibited antibacterial activity against Gram-positive bacteria, Staphylococcus aureus and Streptococcus mutans with MIC values of 51.2; 48.8; 72.5; dan 100.7 µg/mL respectively.DOI :http://dx.doi.org/10.15408/jkv.v0i0.3151