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All Journal Jurnal Biologi dan Pembelajarannya (JBP)
Br Tarigan, Grace Amelia
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Agriculture, Biological Sciences & Forestry Education Health Professions Immunology & microbiology

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Uji Aktivitas Antibakteri Dari Ekstrak Daun Sirih Terhadap Bakteri Bacillus cereus Hasibuan, Ali Ahmatul Umri; Br Tarigan, Grace Amelia; Ulfah Rambe, Khadra; Tarigan, Sisilia Anabina; Sulistyarini Gultom, Endang
Jurnal Biologi dan Pembelajarannya (JB&P) Vol 11 No 1 (2024): APRIL 2024
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jbp.v11i1.21662

Abstract

This study elucidates the role of secondary metabolites in green betel leaves (Piper betle) as antibacterial agents against Bacillus cereus, a bacterium causing various foodborne illnesses in humans. The experimental research was conducted at the Biology Laboratory, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, utilizing Bacillus cereus bacterial isolates and extracting betel leaves using water. The measurement of inhibition zones was performed to evaluate the antibacterial activity of the betel leaf extract. The research results indicate the presence of an inhibition zone against Bacillus cereus growth, albeit categorized as weak. The measurements varied across repetitions, namely 2.6 mm, 3.35 mm, and 1.05 mm. The average of these three results was 3 mm.
Co-Authors Hasibuan, Ali Ahmatul Umri Sulistyarini Gultom, Endang Tarigan, Sisilia Anabina Ulfah Rambe, Khadra