A master's thesis at the College of Agriculture, University of Basra, was titled "The Effect of Partially Hydrolyzed Collagen Films on the Chemical and Qualitative Properties of Freezed Parrotfish."

The study, presented by researcher Ilham Salem Abdullah, aimed to utilize fish waste, specifically the skin of parrotfish, to extract partially hydrolyzed collagen and use it as a biofilm for packaging frozen parrotfish.

The study included the steps of extracting partially hydrolyzed collagen from parrotfish skin through chemical treatment with acid and base, followed by heat treatment before isolation and drying to convert it into a dry powder suitable for storage. A solution was then prepared to dip the parrotfish in it and form the biofilm. The fish were subsequently frozen, and changes in their chemical, microbiological, and sensory composition were monitored over a period of up to 120 days, compared to parrotfish frozen without the collagen film coating.

The study recommended further research into extracting partially hydrolyzed collagen from other fish raw materials and the possibility of improving its properties through various additives.

Media and Government Communication Division / College of Agriculture