Extension of Shelf-Life of Indian Mackerel (<i>Rastrelliger kanagurta</i>) by Irradiation

V. Venugopal, K. A. SAVAGAON, U.S. Kumta, A. Sreenivasan

Journal of the Fisheries Research Board of Canada · 1973 · 12 citations · 0 references

Concepts

Abstract

A dose of 150 krad was optimum for extending refrigerated (0–2 C) shelf-life of fresh Indian mackerel (Rastrelliger kanagurta). This dose extended the shelf-life to 25–30 days from 10–12 days without inducing undesirable changes in the organoleptic qualities. Vacuum-packaging affected the appearance of the irradiated product by drawing out muscle fluids during storage. Samples irradiated aerobically did not become rancid and were acceptable to a taste panel. Storage of fish in ice beyond 5 days before irradiation reduced its post-irradiation shelf-life.