it solubilize the lipids and protein and remove them.
The role of NaCl or sodium chloride in RNA isolation is part of the denaturing process. It is often called the wash step.
It inactivate the RNase and prevent RNA to denature.
chloroform is used to denature protein and settle it in the bottom during rna extraction ,also it helps to form organic and inorganic layers in which rna is dissolved in inorganic layer.
Break open the cells, stabilize RNA, inhibit RNAse.
It solubilizes lipids and a lot of proteins to remove them from the DNA.
phenol is used in order to remove protein impurities from the DNA to yield pure dna while chloroform prevents shearing of DNA during isolation.
for phase separation
it helps in precipition step...
DNA is soluble in chloroform more than water. So we use it.
Carrier RNA reduces the pKa of the silica membrane and electrostatic repulsion between DNA and the column, thereby increasing the adsorption of DNA to the column
In plasmid isolation RNA behaves as an unwanted material so to separate it out RNAase is required which breaks down the RNA. This is done to get pure quality of the product.
trizol helps in maintaining the integrity of the RNA and keeps it intact since RNA is very unstable due to the presence of hydroxyl groups which gives it a free radical.