Department of Food Science and Biotechnology, Sungshin Women's University, 55, 76 ga-gil, Gangbuk-gu, Seoul , 01133, Republic of Korea.
Korea Consumer A gency, 54 Yongdu-ro, Maengdong-myeon, Eumseong-gun, Chungcheongbuk-do, 27738, Republic of Korea.
J Microbiol Biotechnol. 2024 Oct 28;34(10):1988-1994. doi: 10.4014/jmb.2406.06026. Epub 2024 Aug 23.
In order to provide the qualitative data for the 20 commercially available krill oil supplementary products, the levels of omega-3 polyunsaturated fatty acids (PUFA) such as docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), fatty acid compositions, and chemical indices, including acid values, of the supplements, were determined. The acid values ranged from 7.4 to 43.7 mg of potassium hydroxide (KOH)/ g of oil. The relative percentages of EPA and DHA in the oils ranged from 14.2 to 34.8 % (w/w). Although all 20 krill oil supplements used 100% krill oil as raw material, the fatty acid composition of 4 samples differed from typical krill oil in terms of the content of myristic acid (C14:0), palmitic acid (C16:0), palmitoleic acid (C16:1), linoleic acid (C18:2, n-6), and eicosenoic acid (C20:1, n-9). Accordingly, the Ministry of Food and Drug Safety recently standardized linoleic acid (3% or less) and myristic acid (5-13%) as part of the fatty acid components of krill oil. This study provides a reference for analyzing the chemical and nutritional properties and evaluating the adulteration of krill oil supplements in the Korean market.
为了提供 20 种市售磷虾油补充剂的定性数据，测定了补充剂中ω-3 多不饱和脂肪酸（PUFA）如二十二碳六烯酸（DHA）和二十碳五烯酸（EPA）的水平、脂肪酸组成和化学指数，包括酸值。酸值范围为 7.4 至 43.7mg 氢氧化钾（KOH）/g 油。油中 EPA 和 DHA 的相对百分比范围为 14.2 至 34.8%（w/w）。尽管 20 种磷虾油补充剂均使用 100%磷虾油作为原料，但 4 种样品的脂肪酸组成在肉豆蔻酸（C14:0）、棕榈酸（C16:0）、棕榈油酸（C16:1）、亚油酸（C18:2，n-6）和二十碳烯酸（C20:1，n-9）的含量方面与典型的磷虾油不同。因此，食品药品安全部最近将亚油酸（3%或以下）和肉豆蔻酸（5-13%）标准化为磷虾油脂肪酸成分的一部分。本研究为分析磷虾油补充剂的化学和营养特性以及评估韩国市场上的掺假提供了参考。
