Aktivitas Antibakteri Ekstrak Etanol Daun Ketapang (Terminalia catappa L.) Merah dan Cokelat Terhadap Pertumbuhan Bakteri Staphylococcus aureus

نویسندگان

چکیده

Staphylococcus aureus dikenal sebagai bakteri yang kerap kali menyebabkan penyakit akibat infeksi pada saluran pernafasan di Indonesia. Bakteri ini diketahui telah mengalami resistensi terhadap beberapa antibiotik. Resistensi S. dapat ditanggulangi dengan mengembangkan antibiotik alami salah satunya berasal dari tumbuhan ketapang. Tujuan dilakukannya penelitian ialah untuk menganalisa perbandingan aktivitas antibakteri esktrak etanol daun ketapang merah dan cokelat pertumbuhan S.aureus, mengetahui MIC kedua ekstrak, serta golongan senyawa ekstrak. Metode dilakukan meliputi ekstraksi sampel metode maserasi menggunakan pelarut 96%. Pengujian ekstrak konsentrasi 20%, 15%,10%, 5% (b/v) cakram difusi media Nutrient Agar, uji fitokimia secara kualitatif. Hasil menunjukan perbedaan warna mempengaruhi daya hambat S.aureus. Daya terbaik diperoleh 20% diameter zona 13,67±0,76 mm. pengujian nilai 1,47±0,25 mm 10% 1,73±0,25 Uji mengandung steroid, alkaloid, tannin, saponin, flavonoid namun terpenoid hanya ditemukan merah.
 Kata Kunci: metabolit sekunder, MIC, resistensi,

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ژورنال

عنوان ژورنال: Metamorfosa: Journal of Bilogical Sciences

سال: 2023

ISSN: ['2655-8122', '2302-5697']

DOI: https://doi.org/10.24843/metamorfosa.2023.v10.i01.p17