Abstract
Eight different packaging materials namely: polyester polyethylene (PET/PE), nylon polyethylene (N/PE), polyethylene (PE), polypropylene (PP), cello polyethylene (cello/PE), kraft paper, jute sack and plastic sack were exposed to a population of 120 larvae and adult beetles. Out of these eight types of packaging materials, PET/PE was found to be the most resistant packaging material. PET/ PE utilized as bulk packaging material was overwrapped with plastic sack to offer more protection from any physical damages. Irradiated dried striped mackerel at 225 krad and packed in PET/PE were stored in the laboratory and in 3 different market places. Results showed that after a month of storage, there was no infestation nor any damage in PET/PE. No holes, scratches or punctures were found in the lined plastic sack. There were no significant differences noted on the moisture, mold and yeast count and Total Plate Count among samples stored at different market conditions.
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