Résumé:
In recent decades, the excess demand for bluefin tuna in the Mediterranean , has created a
problem of waste dumping (co-produced) in different environments, which accentuates
pollution.
So our job is to enhance co-products in the field of microbiology, In order to use them as a
source of proteins composing culture media for microorganisms. We then studied the
possibility of using tuna by-products as a source of bacteria of industrial interest, including
lactic acid bacteria.
From the results obtained through biochemical analyzes, it has been found that the tuna waste
powder (fish meal) and the obtained protein isolate have a high biological value followed by
chemical hydrolysates with biochemical characteristics which are not negligible. The results
of preparation of the culture media confirmed the same biochemical results: The two products
(powder and protein isolate) can replace the basic elements in the preparation of culture media
for microbiology and bacterial and fungal growth.
