The effect of modified atmosphere packaging (MAP)with and without a moisture adsorbent, on the quality of squid (Sepia officinalis) during chilled storage, was evaluated. Chemical and microbiological tests were carried out to measure the amount of spoilage and the resulting loss offish freshness during 12 days of storage at 3°C. After 11 days, trimethylamine nitrogen (TMA-N) increased from 0.4 mg/l00 g in fresh samples to 24 mg/100 g in MAP with adsorbent and 35 mg/ 100 gin the other samples. Total volatile basic nitrogen (TVB-N)increased from 18 mg/100g in fresh samples to 112 mg/ 100 g in MAP with adsorbent and 158 mg/100g in control samples. Counts of aerobic psychrotrophic microorganisms and presumptive Pseudomonads were more than 10 times lower in both MAP treatments compared to the control, in which counts exceeded 106 cfu/g on day 9, and 107 cfu/g on day 12.

Squid (Sepia officinalis) stored in active packaging: chemical and microbiological changes

ALBANESE, DONATELLA;DI MATTEO, Marisa
2005

Abstract

The effect of modified atmosphere packaging (MAP)with and without a moisture adsorbent, on the quality of squid (Sepia officinalis) during chilled storage, was evaluated. Chemical and microbiological tests were carried out to measure the amount of spoilage and the resulting loss offish freshness during 12 days of storage at 3°C. After 11 days, trimethylamine nitrogen (TMA-N) increased from 0.4 mg/l00 g in fresh samples to 24 mg/100 g in MAP with adsorbent and 35 mg/ 100 gin the other samples. Total volatile basic nitrogen (TVB-N)increased from 18 mg/100g in fresh samples to 112 mg/ 100 g in MAP with adsorbent and 158 mg/100g in control samples. Counts of aerobic psychrotrophic microorganisms and presumptive Pseudomonads were more than 10 times lower in both MAP treatments compared to the control, in which counts exceeded 106 cfu/g on day 9, and 107 cfu/g on day 12.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/1065634
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