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ISSN 2410-7751 (Print)
ISSN 2410-776X (Online)

cover biotech acta general

Biotechnologia Acta Т. 16, No. 3, 2023
P. 65-69, Bibliography 16, Engl.
UDC: 664.9; 639.21
DOI: https://doi.org/10.15407/biotech16.03.065

Full text: (PDF, in English)

LOSS OF AN ABUNDANT QUANTITY OF RIBONUCLEIC ACID DURING MINI COLUMN ISOLATION METHOD

Sudhir Bhatia

Genekam Biotechnology AG, Duissernstr. 65a, 47058 Duisburg

Aim: The Isolation of nucleic acid is an essential step for conducting different molecular assays in many laboratories around the world. It is also a common practice that the user is isolates the ribonucleic acid (RNA) from the samples with a mini column once and throws away the supernatant. This makes isolated RNA as a limiting factor in many studies, as this issue has not been addressed in literature. Therefore, we decided to conduct whether it is a loss of ribonucleic acid during the mini column isolation method.

Method: In this research, the mini-column isolations were done with different samples of human tissues from the placenta and umbilical cords and subsequent isolations of supernatants. Yields and successful isolations of RNA were assessed with the spectrometric instrument and realtime PCR machine.

Results: It was found that there was a loss of an abundant quantity of RNA during the subsequent isolations. The amount measured with a UV spectrometer indicates that some times 2nd and 3rd isolation have more RNA than the first isolation. Realtime PCR for housekeeping gene beta-actin shows that the presence of RNA can be seen up to 6 isolation cycles from supernatants.

Conclusion: There is a loss of RNA in subsequent isolations with the mini-column method. Therefore, it is possible to isolate more RNA from subsequent supernatant isolations. The user should do multiple isolations to get a higher yield of RNA.

Key words: Mini column isolation, RNA; nucleic acid; ribonucleic acid; polymerase chain reaction; real time PCR; viruses; biomarkers; vaccines.

https://orcid.org/0000-0002-9881-7101

© Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, 2023