Changes in the Physicochemical Properties and Color Values of Salted and Fermented Shrimp

새우젓 발효 중 이화학적 특성 및 색도 변화

  • Cho, Hee-Sook (Food and Nutrition, Division of Human Ecology, Mokpo National University) ;
  • Kim, Kyung-Hee (Food and Nutrition, Division of Human Ecology, Mokpo National University)
  • 조희숙 (목포대학교 생활과학부 식품영양학) ;
  • 김경희 (목포대학교 생활과학부 식품영양학)
  • Received : 2009.08.26
  • Accepted : 2010.01.15
  • Published : 2010.02.28

Abstract

This study was performed to examine the effects of salt addition level on changes in the physicochemical properties and color values of salted shrimp during fermentation. Fresh shrimp were salted with different concentrations (8, 18, 28%) of Chunil salt and fermented at $20^{\circ}C$ for 160 days. In the 8% salted shrimp treatment, volatile basic nitrogen (VBN), amino nitrogen (AN), and trimethylamine (TMA) contents rapidly increased during the fermentation period, while in the 18 and 28% salt groups these increases were reduced throughout the 160 days of fermentation. Thiobarbituric acid (TBA) values increased rapidly for 120 days of fermentation and then decreased. The thiobarbituric acid values of the 18, and 28% salted and fermented shrimp groups were lower than the that of the 8% group. In addition, Hunter's color L, a, and b values decreased as the fermentation period increased.

Keywords

References

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