Institute of Marine Research, PO box 1870 Nordnes, N-5817 Bergen, Norway.
Nutrients. 2018 Oct 5;10(10):1443. doi: 10.3390/nu10101443.
The European Food Safety Authority (EFSA) published a risk assessment of erucic acid (22:1n-9) in 2016, establishing a Tolerable Daily Intake (TDI) for humans of 7 mg kg body weight per day. This report largely excluded the contribution of erucic acid from fish and seafood, due to this fatty acid often not being reported separately in seafood. The Institute of Marine Research (IMR) in Norway analyzes erucic acid and has accumulated extensive data from analyses of fish feeds, farmed and wild fish, and seafood products. Our data show that rapeseed oil (low erucic acid varieties) and fish oil are the main sources of erucic acid in feed for farmed fish. Erucic acid content increases with total fat content, both in farmed and wild fish, and it is particularly high in fish liver, fish oil, and oily fish, such as mackerel. We show that the current TDI could be exceeded with a 200 g meal of mackerel, as at the maximum concentration analyzed, such a meal would contribute 143% to the TDI of a 60 kg person. These data cover a current knowledge gap in the scientific literature regarding the content of erucic acid in fish and seafood.
欧洲食品安全局（EFSA）于 2016 年发布了关于芥酸（22:1n-9）的风险评估报告，为人类设定了每天 7 毫克/公斤体重的可耐受每日摄入量（TDI）。由于这种脂肪酸在海鲜中通常没有单独报告，本报告在很大程度上排除了鱼类和海鲜中芥酸的贡献。挪威海洋研究所（IMR）分析芥酸，并从鱼类饲料、养殖和野生鱼类以及海鲜产品的分析中积累了广泛的数据。我们的数据表明，菜籽油（低芥酸品种）和鱼油是养殖鱼类饲料中芥酸的主要来源。无论是养殖鱼还是野生鱼，总脂肪含量越高，芥酸含量就越高，在鱼肝、鱼油和油性鱼类（如鲭鱼）中含量尤其高。我们表明，一个 60 公斤重的人，食用 200 克鲭鱼就可能超过目前的 TDI，因为在分析的最高浓度下，这样一顿饭将占 TDI 的 143%。这些数据填补了科学文献中关于鱼类和海鲜中芥酸含量的当前知识空白。
