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Abstract ▼ AI-Helper

An investigation on optimum condition for processing of salted-dried sardine and quality change of the product during the storage was carried out. The fillets of sardine were salted in 5, 10 and $15\%$ NaCl solution for 12, 24 and 36 hours at $9-10^{\circ}C$, respectively and a...

An investigation on optimum condition for processing of salted-dried sardine and quality change of the product during the storage was carried out. The fillets of sardine were salted in 5, 10 and $15\%$ NaCl solution for 12, 24 and 36 hours at $9-10^{\circ}C$, respectively and air-blast dried at $24-25^{\circ}C$ with a velocity of 3 m/sec and then stored at room temperature for 30 days. The results were as follows : The optimum condition for the product was salting in $15\%$ NaCl solution for 36 hours as VBN and histamine contents were 27.5 mg/100g and 42.5 mg/100g, respectively, and also showed a good result in sensory evaluation. Histamine, VBN and TMA-N content of the dried fillets immediately after salting in $15\%$ NaCl solution for 36 hours increased to 47.8 mg, 29.5 mg and 5.4mg per 100g of the sample, respectively and increased slowly during the storage. The peroxide value and acid value of the lipid extracted from the product increased from 15.9 meq/kg to 114.0 meq/kg, and 12.6 to 30.5 during the storage. In the fatty acid composition, $C_{22:6}\;and\;C_{20:5}$ acids were decreased during the storage period.