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Abstract ▼ AI-Helper

For the purpose of obtaining basic data which can be applied to evaluate the quality of the retortable pouch and tin-plated canned product, the canned sardine and the retort pouched sardine were prepared and compared in terms of thermal sterilization times required and product duality during storage...

For the purpose of obtaining basic data which can be applied to evaluate the quality of the retortable pouch and tin-plated canned product, the canned sardine and the retort pouched sardine were prepared and compared in terms of thermal sterilization times required and product duality during storage. Retort pouched sardine required $20\%$ less thermal sterilization time than the canned sardine. Volatile basic nitrogen (VBN) and amino nitrogen ($NH_2-N$) contents in both canned and retort pouched sardine showed little difference during processing and storage. During storage, peroxide value (POV) and thiobarbituric acid (TBA) value of the canned sardine had a slightly higher value compared to the retort pouched sardine, but acid value (AV) revealed little difference between both canned and retort pouched sardine. Trimethylamine (TMA) content of the both canned and retort pouched sardine showed little difference during processing and storage. The inosinic acid (IMP) content in canned and retort pouched sardine was $8.39{\sim}9.80{\mu}mole/g$ range, and had no significant change during processing and storage. The retort ponched sardine revealed a smaller reduction in polyenoic acid than the canned sardine during processing and storage. Among the TPA (texture profile analysis) parameters, hardness maintained a slightly higher value in the retort pouched sardine than in the canned sardine. Color values showed that the retort pouched sardine was generally lighter than the canned sardine. In sensory evaluation, the retort pouched sardine was scored slightly higher, in most cases, for color, flavor, texture, taste and overall acceptance than the canned sardine. It was concluded from the results that the retort pouched sardine was at least equal to the canned sardine in product quality.