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Oxidative stability of omega-3 dietary supplements according to product characteristics

분석과학 2020년 33권 5호 p.215 ~ 223
권현정, Yun Ho-Cheol, 이지윤, 정은정, 조현노, 김다영, 박성아, 이승주, 강정미,
소속 상세정보
권현정 ( Kwon Hyeon-Jeong ) - Busan Metropolitan City Health and Environment Food Analysis Team
 ( Yun Ho-Cheol ) - Busan Metropolitan City Institute of Health & Environment
이지윤 ( Lee Ji-Yoon ) - Busan Metropolitan City Health and Environment Food Analysis Team
정은정 ( Jeong Eun-Jung ) - Busan Metropolitan City Health and Environment Food Analysis Team
조현노 ( Cho Hyun-Nho ) - Busan Metropolitan City Health and Environment Food Analysis Team
김다영 ( Kim Da-Young ) - Busan Metropolitan City Health and Environment Food Analysis Team
박성아 ( Park Sung-Ah ) - Busan Metropolitan City Health and Environment Food Analysis Team
이승주 ( Lee Seung-Ju ) - Busan Metropolitan City Health and Environment Food Analysis Team
강정미 ( Kang Jung-Mi ) - Busan Metropolitan City Health and Environment Food Analysis Team

Abstract


The objectives of the present study were to assess the oxidative stability of South Korean n-3 (omega- 3 fatty acid) supplements carried out from 2018 to 2019 and evaluate the influence of product characteristics on oxidative safety. A total of 76 n-3 supplements were analysed for oxidation safety by four markers, including acid value (AV), primary oxidation (peroxide value, PV), secondary oxidation (p-anisidine value, pAV) and total oxidation value (TOTOX). Among the supplements tested, 5.3 %, 55.3 %, 28.9 % and 46.1 % exceeded the international voluntary recommended levels for AV, PV, pAV and TOTOX, respectively. Purity (%) of products, remainder of expiration date (suggested shelf life), package in press through package (PTP) and products with additives had statistically significant differences oxidation assessment levels (p < 0.05). In addition, n-3 group found in Algae oil had significantly lower AV levels than the group that did not, and product with Alaska pollack oil, had significantly higher pAV levels than without group (p < 0.05). The high oxidation status of South Korean n-3 products in the present study could not be considered a public health problem right now.
However, the levels of oxidation may affect a lot the efficacy and safety of using n-3 supplements. Thus, current oxidation safety limits should be reestablished by regulatory bodies to ensure the safety and efficacy of n-3 supplements, so that the standards could be applied to the products available to consumers.

키워드

omega-3 supplement; acid value; peroxide value; anisidine value; total oxidation value

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