Related Experiment Video
Updated: Oct 18, 2025

Mycobacterial DNA Extraction using Bead Beating in Custom Buffer Followed by NGS Workflow
Published on: June 13, 2025
A SIMPLE METHOD OF DNA EXTRACTION OF MYCOBACTERIUM TUBERCULOSIS FROM SPUTUM CULTURES FOR SEQUENCING ANALYSIS
Maharani Pertiwi Koentjoro1, Adyan Donastin2, Endry Nugroho Prasetyo3
1Medical Laboratory Technology, Faculty of Health, Universitas Nahdlatul Ulama Surabaya, Jl. Jemursari No. 57, Surabaya, Indonesia.
Background:
Concern has been raised about DNA extraction from Mycobacterium tuberculosis due to its complex procedure. This study demonstrates a simple and fast DNA extraction method of mycobacterial genome to subsequent molecular investigation, such as Polymerization Chain Reaction (PCR) amplification, with species-specific primers and sequencing.
Materials And Methods:
Total DNA was isolated from M. tuberculosis cultured by using boil method. DNA was evaluated via measures of DNA quantity and quality (absorbance at 230, 260 and 280 nm), DNA integrity (electrophoresis). Molecular tests were tested namely PCR and sequencing.
Conclusions:
The quality of DNA obtained is acceptable for PCR and sequencing analysis. These findings demonstrate that the method used is inexpensive and suitable for minimum infrastructure facilities.
Related Concept Videos
DNA Isolation
Sputum Studies I: Gram Stain, cytology, and Acid-fast smear and culture
Gram Stain
The Gram Stain is an integral part of sputum studies. It involves the staining of sputum, which permits...

