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구.농수식품

조회837

이준희Joonhee Lee

한국표준과학연구원

Food Chem., Volume 298, 15 November 2019, 125088 | https://doi.org/10.1016/j.foodchem.2019.125088 Development of an infant formula certified reference material for the analysis of organic nutrients

Abstract

Joonhee Lee^a, Byungjoo Kim^a,*, Sun Young Lee^a, Jongoh Choi^a, Dukjin Kang^a, Hwasim Lee^a, KiHwan Choi^a, Hyeyoung Lee^a,1, Hee-Jung Sim^a,2, Song-Yee Baek^a, Honghee Lee^a, Seok-Won Hyung^a, Seonghee Ahn^a, Dongwon Seo^b, Jinbong Hwang^b, Jong-Su Park^c, Byung-Man Kwak^c, Jongeun Won^c

^aDivision of Chemical and Medical Metrology, Korea Research Institute of Standards and Science, Yuseong, Daejeon 34113, Republic of Korea
^bFood Analysis Center, Korea Food Research Institute, Wanju-Gun, Jeollabuk-do 55365, Republic of Korea
^c Food Safety Center, Namyang Dairy Products Company, Sejong 30055, Republic of Korea

^*Corresponding author : Byungjoo Kim

¹Current address: Division of Applied Bioengineering, Dong-Eui University, Busanjin-gu, Busan 47340, Republic of Korea.
²Current address: Gyongnam Department of Environmental Toxicology and Chemistry, Korea Institute of Toxicology, Jinju, Gyeongsangnam-do 52834, Republic of Korea.

Abstract
Infant formula certified reference material (CRM, KRISS CRM 108-02-003) were developed for the analysis of organic nutrients. The CRM is a milk-based infant formula powder, packaged at 14 g per unit. Ten thousand units were prepared and stored at −70 °C. For the certification of each nutrient, ten units were analyzed for simultaneous value-assignment and homogeneity test. Analytical methods used were isotope dilution mass spectrometry (IDMS) based on liquid chromatography mass spectrometer (LC/MS) or gas chromatography mass spectrometer (GC/MS) as higher-order reference methods.13 vitamins, 3 fatty acids, and total cholesterol were certified. The between-unit relative standard deviation of measurement results for each nutrient ranged 0.2% to 2.5%, showing very good homogeneity. The expanded relative uncertainties of the certified values ranged from 1% to 8%, indicating that they have higher-order metrological quality. The values of proximates (proteins, lipids, carbohydrates, water, and ash) were assigned through inter-laboratory comparisons.

Keywords : Infant formula; Certified reference material; Vitamins; Fatty acids; Higher-order reference method; Proximates

논문정보

형식Research article
게재일2019년 11월 (BRIC 등록일 2019-09-25)
연구진국내 연구진
분야
구분구・농수식품

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