Searching for the best agarose candidate from genus Gracilaria, Eucheuma, Gelidium and local brands

Abstract

Objective

To explore the potential of local agar of genus GracilariaEucheumaGelidium and local brands as an alternative for imported agarose for DNA electrophoresis, and to examine their ability related to separation and migration of DNA fragments in DNA electrophoresis.

Methods

Their performance at various concentrations were compared via an experimental study with a specific brand of imported commercial agarose used in molecular biology research. The measured variables were separation and migration during electrophoresis of a DNA fragment.

Results

The local agar genus Gracilaria gigasGelidium, brand “B” and brand “S” could separate DNA fragments at a concentration between 1% and 2%, with an optimum concentration of 2% w/v, as good as a specific brand of imported commercial agarose.

Conclusions

Their performance were very close to that of commercial agarose and can still be improved by further agar purification as well as by pH and sulfur control.

Keywords

Agarose
Eucheuma
Gracilaria
Gelidium
Local brands
Indonesia agar

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