JURNAL ELEKTROFORESIS DNA PDF

Dinding sel jamur Trichoderma tersusun atas senyawa kitin yang sangat kokoh dan resisten terhadap aktivitas enzim. Teknik dan metode spesifik diperlukan untuk mendegradasi dinding sel jamur. Penelitian ini bertujuan untuk menganalisis metode isolasi DNA terbaik dalam melisiskan dinding sel jamur dengan membandingkan beberapa metode isolasi. Data dianalisis secara kualitatif dengan elektroforesis gel agarose dan secara kuantitatif dengan menghitung nilai kemurnian dan konsentrasi DNA menggunakan Nanodrop. Hasil uji elektroforesis menunjukkan adanya pita DNA berupa garis tipis pada sampel yang diisolasi dengan kombinasi metode kit dan cara fisik, sedangkan pada kedua sampel lainnya tidak ditemukan adanya pita DNA.

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DNA bands formed from the results of electrophoresis with Polyacrilamide gel are considered as 1 character representing 1 allele.

PCR products produce multiple bands multy bands , which indicates that there are multi alleles in the sample. Electrophoresis is a chemical analysis method based on the movement of charged protein molecules in the electric field. Separation is carried out based on differences in the size of the molecular weight and the electric charge contained by the macro-molecule.

In addition, the effect of gel concentratio n, buffer and electrophoresis time also has a role in the results of electrophoresis. This study was conducted to compare the best separation time for acrilamide gel electrophoresis with the results of cassava DNA amplification. Using electrophoresis by poly-acrilamide gel with two different time effects: 1 hour 30 minutes and 3 hours. The results of electrophoresis with 3 hours gave better results of DNA visualization compared to 1 hour 30 minutes.

Toggle navigation. Home Vol 3, No 1 Ramadanti. Abstract DNA bands formed from the results of electrophoresis with Polyacrilamide gel are considered as 1 character representing 1 allele. Open Journal Systems. User Username Password Remember me. Journal Help. Digital Archiving and Tool. Notifications View Subscribe. Font Size. Share Tweet. ISSN: X. Focus and Scope. Editorial Team. Peer Review Process. Publication Ethics. Editorial Policies. Online Submissions. Remember me.

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Agarose Gel Electrophoresis for the Separation of DNA Fragments

Agarose gel electrophoresis is the most effective way of separating DNA fragments of varying sizes ranging from bp to 25 kb 1. Agarose is isolated from the seaweed genera Gelidium and Gracilaria , and consists of repeated agarobiose L- and D-galactose subunits 2. During gelation, agarose polymers associate non-covalently and form a network of bundles whose pore sizes determine a gel's molecular sieving properties. The use of agarose gel electrophoresis revolutionized the separation of DNA. Prior to the adoption of agarose gels, DNA was primarily separated using sucrose density gradient centrifugation, which only provided an approximation of size.

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Kusumaningrum Jl. Molekul DNA menunjukkan polarisasi yang kuat sehingga memungkinkan baik gerak elektroforesis berdasarkan muatan negatifnya maupun gerak dielektroforesis berdasarkan induksi polarisasi. Perancangan alat menggunakan kombinasi prinsip elektroforesis dan dielektroforesis dilengkapi perangkat lunak untuk mengukur konsentrasinya sangat diperlukan. Utamanya mengingat uji kualitatif DNA berbasis visualisasi pada gel elektroforesis bersifat sangat subyektif dan kurang terukur. Penelitian bertujuan untuk mendesain piranti untuk mengukur konsentrasi DNA berdasarkan visualisasinya pada gel elektroforesis menggunakan perangkat lunak berbasis MatLab. Hasil penelitian menggunakan piranti tersebut memperlihatkan visualisasi DNA yang lebih optimal. Hasil pengukuran jumlah DNA menggunakan spektrofotometer memiliki kecenderungan yang sama dengan hasil pengukuran menggunakan perangkat lunak berbasis MatLab meskipun terdapat perbedaan nilai kuantitatif.

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