Utilization of fish protein hydrolysates as peptones for microbiological culture medias
2021
Petrova, Inna | Tolstorebrov, Ignat | Zhivlyantseva, Iuliia | Eikevik, Trygve Magne
Increasing amount of unutilized rest raw material worldwide and, particularly, in Norway leaded to the investigation of its possible utilization. In the present research, fish protein hydrolysates from cod were used as peptones for microbiological culture medias. The hydrolysates were produced with several enzymatic systems and dried by several drying techniques in order to evaluate the influence of processing on their utilization as peptones. Strains of Staphylococcus aureus and Salmonella enteriditis were used as test strains. The obtained microbiological culture medias based on the peptones from fish protein hydrolysates were compared with a reference media produced industrially. The investigated medias generally showed similar or better growth of the test strains, when compared with the reference. The influence of the enzymatic system and drying method on the growth of the tested strains was analyzed and discussed.
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