Biogenic amines formation in fish sauce prepared from fresh and temperature-abused Indian anchovy (Stolephorus indicus)
2004
Yongsawatdigul, J. | Choi, Y.J. | Udomporn, S.
The formation of biogenic amines in fish sauce made from fresh and temperature-abused (left at 35 degrees C for 8 and 16 h) Indian anchovy (Stolephorus indicus) was investigated. Histamine, cadaverine, putrescine, and tyramine were the predominant biogenic amines found in anchovy left at 35 degrees C for 16 h and its fish sauce product. Changes of biogenic amines were subtle during the course of fermentation at room temperature (RT) and at 40 degrees C, suggesting that the main source of biogenic amines was associated with raw material, rather than with the fermentation process. Soluble peptide and total nitrogen of fish sauce prepared from temperature-abused anchovy were higher at the initial stage of fermentation at RT and 40 degrees C and became comparable to those prepared from fresh anchovy at the end of fermentation. Total free amino acid contents of samples fermented at RT for 52 wk (7208.3 to 8473.6 mg/100 mL) were higher than those fermented at 40 degrees C for 13 wk (4560.9 to 5730.9 mg/100 mL). Fish sauce prepared from temperature-abused anchovy contained less free histidine and arginine. Fish sauce of a good quality was obtained using fresh anchovy fermented at RT. Besides total nitrogen content, biogenic amines should be considered as quality indicators of fish sauce.
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