The Change of Rastrelliger sp. Quality in Samarinda Traditional Market Distribution Chain

Mulawarman University, Fisheries Product Technology Department, 75123 Samarinda, East Kalimantan, Indonesia

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Abstract

Post-harvest handling is a crucial aspect of the distribution chain for fresh fish, as it ensures the safety and freshness of the commodity for consumers. The Indian mackerel (Rastrelliger sp.) is one of the primary marine protein commodities in East Kalimantan, Indonesia. The objective of the present study was to observe the quality change of indian mackerel fish during supply distribution in Samarinda City. The organoleptic quality, pH, total plate count (TPC), total volatile base (TVB) and water content of the fish were measured at four time points: 4 am in the fish handling facility (TPI Selili), 8 am, 11 am and 2 pm at the traditional market. The data were collected and compared with the National Standardization Body of Indonesia (SNI). The fish quality was found to change significantly at 11 am, with alterations being observed in the quality of the gills, eyes, mucus, aroma and texture of the fish. The TPC also indicated an increase in viable bacteria, exceeding the established standards. The pH level rises substantially due to the enzymes and microbes' activity, which accelerates the spoilage process. Meanwhile, the TVB of all samples remain categorized as safe to consume. The quick and right post-harvest handling is needed to preserve the quality of the fresh fish.