Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
권호 표지

Influence of Nitrite and Ascorbic acid on N-Nitrosamine Formation during the Fermentation of Salt-fermented Small Shrimp

새우젓 숙성중 아질산염과 아스코르브산이 N-Nitrosamine의 생성에 미치는 영향

  • KIM Jeong-Gyun (Department of Marine Food Science and Technology, Gyeongsang National University) ;
  • LEE Soo-Jung (Department of Food and Nutrition, Gyeongsang National University) ;
  • SUNG Nak-Ju (Department of Food and Nutrition, and The Institute of Agriculture and Fishery Development, Gyeongsang National University)
  • Published : 1998.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

The changes of contents of trimethylamine oxide nitrogen (TMAO-N), trimethylamine nitrogen (TMA-N), dimethylamine nitrogen (DMA-N), nitrite nitrogen (nitrite-N), nitrate nitrogen (nitrate-N) and N-nitrosamine (NA) of salt-fermented small shrimp were investigated during fermentation. The contents of TMAO-N decreased, while TMA-N and DMA-N increased during fermentation in all samples. Contents of nitrite-N decreased in the samples supplemented with sodium nitrite during fermentation, whereas the formation of N-nitrosodimethylamine (NDMA) increased. Treatment of ascorbic acid revealed inhibiting effort on NDMA formation compared with the control. The model system was used for the evaluation of ascorbic acid (inhibitor) or thiocyanate (promoter) on the formation of NDMA using salt-fermented small shrimp supplemented with sodium nitrite, The optimum pH for the formation of NDMA was 3.5, and ascorbic acid inhibited the formation of NDMA whereas thiocyanate promoted.

새우에 일정량의 식염, 아질산염, 질산염 및 아스코르브산을 첨가하여 숙성시키면서, NA생성에 미치는 영향에 대해 조사한 결과는 다음과 같다. pH는 담금직후 8.1에서 숙성 110일 후 6.5로 산성화되었다. TMAO 질소는 숙성중 감소한 반면, TMA 및 DMA질소는 증가하였다. 아질산염 첨가구는 숙성중 NDMA함량이 증가하였고, 아스코르브 산첨가구는 NDMA생성이 억제되었다. 모델계실험 결과, 새우젓의 니트로소화 최적 pH는 3.5이었고, 아스코르브산은 NDMA생성을 크게 억제시킨 반면 thiocyanate는 촉진시켰다. 본 실험 결과, 새우젓 자체에는 NDMA가 거의 검출되지 않았으나, 질산염이나 아질산염의 함량이 많은 물질과 함께 섭취된다면 위내에서 NDMA가 생성될 가능성이 충분한 것으로 판단되었다.

Keywords