Study of Quality Control of Yellowfin Tuna (Thunnus albacares) as Tuna Loin Products from Handline Catches in Mentawai Waters, Indonesia

Yellowfin tuna (Thunnus albacares) is one of Indonesia’s leading export products after shrimp. Indonesia is one of the largest producers and exporters of tuna products in the world. The high export market price encourages producers to supply export-grade T. albacares. Export markets require high-quality standards, particularly in terms of freshness, freedom from bacterial contamination, and low levels of heavy metals. To obtain high-quality fish, it is necessary to apply proper quality control. One of the objectives of this research is to understand how quality control is carried out onboard fishing vessels, particularly for T. albacares destined for export products. The study uses descriptive analysis, average values, and organoleptic testing to assess tuna quality. The research was conducted from February 20 to May 20, 2023, in Bungus, West Sumatra Province, by observing handline fishing operations. Data was collected through interviews, direct observations during onboard quality control activities, and monitoring during unloading at the port. Results show that handline tuna catches are generally of grade A quality, as onboard quality control can be categorized as good. Handling methods and equipment used onboard can still be improved by replacing them with more effective tools and shortening handling time.