This research aims to study the unique factors of virgin coconut oil (VCO) compared with coconut oil (i.e., coconut oil processed through heating the coconut milk and palm oil sold on the market). Its novelty is that it (VCO) contains lactic acid bacteria and bacteriocin. Lauric acid content was analyzed by the Chromatographic Gas method. Isolation of lactic acid bacteria (LAB) was conducted by the dilution method using MRSA + 0.5% CaCO3 media. Iodium number, peroxide, and %FFA were analyzed using a general method, and isolation bacteriocin by the deposition method using ammonium sulfate. In addition, macromolecular identification was conducted by 16S rRNA. VCO was distinguished by a higher content of lauric acid (C12:0) 41%–54.5% as compared with 0% coconut and 0, 1% palm oil, respectively. The VCO also contains LAB, namely Lactobacillus plantarum and Lactobacillus paracasei, and can inhibit the growth of pathogenic bacteria, such as Pseudomonas aeruginosa, Klebsiella, Staphylococcus aureus, S. epidermidis, Proteus, Escherichia coli, Listeria monocytogenes, Bacillus cereus, Salmonella typhosa and bacteriocin. Comparison with VCO is based on having a high content of lauric acid, 54%, and LAB content. The difference between VCO and coconut oil and palm oil is fatty acids. In VCO there are lauric acid and stearic acid, namely lauric acid VCO (A) 54.06%, VCO (B) 53.9% and VCO (C) 53.7%. The content of stearic acid VCO (A) is 12.03%, VCO (B) 12.01% and VCO (C) 11.9%. Coconut oil contains a little lauric acid, which is 2.81%, stearic acid 2.65% and palmitic acid 2.31%. Palm oil can be said to have very little lauric acid, namely in palm oil 1, 0.45%, and even in palm oil 2, 0%; in turn, palmitic acid palm oil 1 has 2.88% and palm oil 2 palmitic acid has 24.42%.
<p><strong><em>Abstrak</em></strong></p><p><em>Virgin Coconut Oil (VCO), selama ini dikenal banyak sekali kegunaan nya disebabkan kandungan asam lauratnya yang tinggi. Tetapi ternyata tidak hanya itu melainkan adanya bakteri asam laktat yang mengandung bakteriosin. Dimana bakteriosin adalah peptide yang mempunyai kemampuan menghambat pertumbuhan bakteri dan jamur yang berisifat patogen, bahkan dapat membunuh virus. Tujuan penelitian ini adalah untuk mengkarakterisasi bakteriosin yang ada pada bakteri asam laktat <strong>Lactobacillus paracasei</strong> yang terdapat pada lapisan minyak VCO.Adapun penelitian ini dimulai dengan mengisolasi bakteriosin menggunakan media </em><em>MRSB (Merck), pemurnian bakteriosin nya dengan purifikasi parsial</em> <em>menggunakan metoda pengendapan Ammium Sulfat. Karakterisasi dilakukan 4 macam, yaitu Kemampuan tumbuhnya BAL pada medium dilakukan dengan memvariasikan pH tertentu; Kemampuan bakteriosin dihasilkan pada medium dengan variasi pH tertentu, kemudian menganalisa antimikrobanya;</em> <em>Ketahanan bakteriosin tersebut pada pemanasan dengan variasi temperatur tertentu; Penentuan Berat Molekul dengan SDS-PAGE. Hasil purifikasi parsial yang paling bagus adalah pada</em> <em>pengendapan dengan 40% dan 60% ammonium sulfat . Untuk kemampuan tumbuh BAL, ternyata mampu tumbuh pada pH 2-9, Kemampuan aktivitas mikroba bakteriosin pada pH 2-6 untuk E Coli, pH 2-9 untuk B Sbtillis dan pH 2-10 untuk bakteri uji Listeria monocytogenes dan S aureus.</em> <em>Bakteriosin ini tahan sampai pemanasan 121 <sup>0</sup>C. Sehingga dapat disimpulkan bakteriosin ini bisa hidup pada manusia</em></p><p><em> </em></p><p><em> </em></p>
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