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All Journal METAMORFOSA Journal of Biological Sciences Jurnal Biologi Universitas Andalas Eksakta : Berkala Ilmiah Bidang MIPA
Feskaharny Alamsjah
Andalas University
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Mechanical Engineering

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Antibacterial potency of fresh extract leaves of jamaican cherry (Muntingia calabura L.) in Inhibiting the growth of Shigella dysenteriae. Ikel Fitri Yanis; Feskaharny Alamsjah; Anthoni Agustien; Tesri Maideliza
Jurnal Biologi Universitas Andalas Vol 8, No 1 (2020)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.8.1.14-19.2020

Abstract

Research on the antibacterial potency of fresh extract from leaves of Jamaican cherry (Muntingia calabura L.) in inhibiting the growth of Shigella dysenteriae had been conducted in the Microbiology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Andalas University. The study aimed to determine the potential of fresh extract from  Jamaican cherry leaves in inhibiting the growth of S. dysenteriae and to determine its Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) against S. dysenteriae. The results showed that the fresh extract of Jamaican cherry leaves was potent as an antimicrobial agent against pathogenic bacteria S. dysenteriae. It was shown through 12 - 14 mm diameter of inhibition zone which was classified as strong inhibition. The MIC was measured at 3.125% while MBC was undetermined. According to these findings, it can be concluded that the fresh extract from Jamaican cherry leaves was potent to inhibit the growth of S.dysentriae at 3.125% concentration, yet unable to kill it.
Antibacterial Potential of Actinomycetes Isolates from Imperata (Imperata cylindrica L.) Rhizosfer Against Eschericia coli and Staphylococcus aureus Feskaharny Alamsjah; Apriliana Wahyuni; Kawther Ameen Muhammed Saeed Aledresi
Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464) Vol. 22 No. 3 (2021): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (907.281 KB) | DOI: 10.24036/eksakta/vol22-iss3/279

Abstract

Research on the Antibacterial Potential of Actinomycetes Isolates from the Rhizosphere of imperata (Imperata cylindrica L.) Against Eschericia coli and Staphylococcus aureus has been conducted at the Biota Laboratory of Sumatera, Andalas University from July to September 2020. This study aims to obtain actinomycetes isolates from plant rhizosphere reeds (Imperata cylindrica L.) which has the potential as an antibacterial against Escherichia coli and Staphylococcus aureus. This study used a survey method. The results showed that 4 isolated actinomycetes were found, all of which have antibacterial potential, which could inhibit the growth of Escherichia coli and Staphylococcus aureus.
Antimicrobial Activity of Skin Secretion of Rana hosii Frog (Anura: Ranidae) against several pathogenic microbes Feskaharny Alamsjah; Djong Hon Tjong; Zil Fadhillah Rahma
Jurnal Biologi Universitas Andalas Vol 8, No 2 (2020)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.8.2.48-53.2020

Abstract

The research on antimicrobial activity of skin secretion derived from Rana hosii (Anura: Ranidae) against several pathogenic microbes had been conducted at Microbiology Laboratory and at Genetics and Biomolecular Laboratory, both in the Biology Department, Universitas Andalas. The research used to survey and experimental methods. The study aimed to determine the effectivity of Rana hosii skin secretion to inhibit microbial activity, hence it tested onto some pathogenic microbes such as Escherichia coli, Staphylococcus aureus and Candida albicans. The results showed that the biggest inhibition zone formed against E. coli was 10.96 + 0.63 mm, on S. aureus was 11.74 + 1.00 mm, while on C. albicans was 7.42 + 0.80 mm. The results indicated that the skin secretions from Rana hosii frog could be a potential broad-spectrum antibacterial, and antifungal activity against C. albicans.
Pengaruh pH dan Suhu terhadap Produksi Antibiotika dari Isolat Bakteri Endofitik pada Tumbuhan Andalas (Morus macroura Miq.) Riski Budi Yani; Anthoni Agustien; Feskaharny Alamsjah
Metamorfosa: Journal of Biological Sciences Vol 6 No 1 (2019)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2019.v06.i01.p14

Abstract

The study used survey method and the data were analysed descriptively. The selection of the bacteria which produce antibiotic had been with paper disk method and used Escherichia coli and Staphylococcus aureus as the sample bacteria. This result showed pH 7,0 was succesful optimum pH antibiotic produced for Bacillus sp.1 and Bacillus sp.2. and 370C was the optimum temperature to antibiotic produced from Bacillus sp.1 and Bacillus sp.2.
Co-Authors Anthoni Agustien Apriliana Wahyuni Djong Hon Tjong Ikel Fitri Yanis Kawther Ameen Muhammed Saeed Aledresi Riski Budi Yani Tesri Maideliza Zil Fadhillah Rahma