4 results for “Mufidhatul Muqarramah”

Research ArticleOpen accessIn the author namesOptimization and Molecular Identification of Protease-Producing Thermophilic Bacterial Isolate TUA-26Anthoni Agustien, Mufidhatul Muqarramah, Feskaharny AlamsjahProtease enzymes are used as biocatalysts that can accelerate a reaction. Thermostable enzymes produced by thermophilic bacteria are needed in the industrial field because of their ability to withstand high temperatures. The thermophilic bacterial isolate TUA-26 that produces protease was to analyze the optimum conditions of temperature, pH, agitation, trace elements, carbon sources, and nitrogen sources; the stability of protease … …OnLine Journal of Biological Sciences, Vol. 24, Issue 3 · 6 Apr 2024 · 4,937 accessesView PDF Cite

Research ArticleOpen accessIn the author namesAntimicrobial Potential of Ethanol Extract from Some Plants Against Staphylococcus aureus and Pseudomonas aeruginosaFeskaharny Alamsjah, Anthoni Agustien et al.The number of reports of bacterial infections that are difficult to treat with antibiotics has led to the need for new alternatives for the treatment of resistant bacterial infections. One alternative is to utilize phytochemical bioactive compounds derived from natural ingredients which contain antimicrobial compounds. Some plants medicine from Sumatra island that should have potential as antimicrobials are the leaves … …OnLine Journal of Biological Sciences, Vol. 24, Issue 3 · 19 Mar 2024 · 6,895 accessesView PDF Cite

Research ArticleOpen accessIn the author namesEnhanced Amylase Activity by Modulating Abiotic Factors and Enzyme Stability in the Thermophilic Bacterial IsolatesAnthoni Agustien, Denny Bendrianis, Feskaharny Alamsyah et al.Amylase is one of the enzymes that is widely used in bioprocess technology, amylase from different microbial sources also varies in form, so it is suitable for its specific application. The purpose of this study was to determine the optimum temperature, pH, agitation, and stability of the amylase enzyme from two thermophilic bacterial isolates, TUA-07 and TUA-09. This study used … …OnLine Journal of Biological Sciences, Vol. 24, Issue 2 · 7 Feb 2024 · 5,500 accessesView PDF Cite