EXTRAÇÃO E CARACTERIZAÇÃO DO COLÁGENO A PARTIR DE PELE DE PEIXE DA ESPÉCIE TILÁPIA DO RIO E REPRESA

Abstract

To evaluate the physical-chemical difference of the collagen extracted from the skin of river and tank tilapia through 3 concentrations of NaOH. The following analyzes were carried out on fresh skin and collagen: moisture, ash, ph and acidity and on the extracted collagen the gel formation capacity. It can be observed that the skin of tank tilapia showed a higher humidity as well as in the obtained collagen, however ph and acidity did not present significant differences. The gel formation capacity was high in every study, both in the collagen obtained from the skin of the river tilapia and from the pond.