Reports

Development of a process for enzyme treatment of liver before canning

Published:

01/09/2009

Authors:

Ásbjörn Jónsson, Irek Klonowski, Sigurjón Arason, Sveinn Margeirsson

Supported by:

AVS Fisheries Research Fund

contact

Sigurjón Arason

Chief Engineer

sigurjon.arason@matis.is

Development of a process for enzyme treatment of liver before canning

The aim of the project was to increase the value and utilization of liver for canning, by developing a process and processing pathway for enzyme purification in the membrane of the liver to release roundworms located on the surface of the liver. Furthermore, the aim was to develop a method and equipment for brine salting for canning. The results and benefits of the project consisted of the development of a technology with enzymes that is effective in releasing membrane and ringworm on the surface of the liver for canning. Processing speeds increased and utilization increased from 60% to 80-85%. The investment is considered profitable and the return on total investment (ROTA) returns within a few years.

The aim of this project was to increase the profitability in the production of canned liver, by developing a process to remove the ringworms from the membrane at the surface of the liver with enzymes, before canning. Furthermore, to develop a process for brining of liver before canning. The yield and the profit of the project consisted of a development of a technique with enzyme which successfully remove membrane and ringworms from the surface of the liver before canning. The efficiency of production increased along with the yield from 60% to 80‐85%. The investment is profitable and the return on total asset will be in a few years.

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