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Abstract ▼ AI-Helper

To investigate the effect of organic acids on suppression of fishy odor, the change of the odor and the remaining amount of trimethyamine (TMA), selected as the representative component of fishy odor in clam pickle (15.5% NaCl) were examined by sensory evaluation and gas chromatography. The fishy od...

To investigate the effect of organic acids on suppression of fishy odor, the change of the odor and the remaining amount of trimethyamine (TMA), selected as the representative component of fishy odor in clam pickle (15.5% NaCl) were examined by sensory evaluation and gas chromatography. The fishy odor linearly decreased as the amount of vinegar increased at ${\alpha}=0.01$, but there was no significant difference of fishness score for the changes of storage period and kinds of acid. Overall acceptability score was found to be the best when 8 ml vinegar added to 100g clam pickle. The remaining amount of TMA showed the tendency to decrease as the amount of acetic acid and storage time increased and kinds of acid were changed in order of acetic, malic and citric acid. However when $4\;{\mu}l/ml$ acetic acid (=8 ml vinegar/100g clam pickle) was added, the percentage of the remaining amount of TMA showed little decrease from about 95% for 72 hours of storage time. From the results of sensory evaluation and gas chromatography, it was considered that acids have the effect on suppression of fishy odor by producing non-volatile salts by combining with TMA chemically and that the effect of acids on suppression of fishy odor is mainly due to the masking effect at the concentration commonly used.