测定婴儿配方食品中的β-半乳寡糖（GOS）：合作研究，最终行动 2021.01

IF 1.7 4区农林科学 Q3 CHEMISTRY, ANALYTICAL

Journal of AOAC International Pub Date : 2024-04-13 DOI:10.1093/jaoacint/qsae031

Denis Cuany, Sean Austin

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引用次数: 0

摘要

背景我们曾发布过一种测定婴儿配方奶粉和成人营养品中 β-半乳寡糖 (GOS) 的方法，该方法目前是 AOAC 方法 2021.01 的首次行动。本研究收集了重现性数据，以支持将该方法提升为最终行动方法。方法组织了一项合作研究，有来自 8 个不同国家的 14 个实验室参加。起初，要求实验室分析两个实践样本，并在出现问题时请求研究主任的指导。成功的实验室接着分析了作为盲样收到的 7 份样品（6 份婴儿配方奶粉和 1 份成人营养品）。结果 13 个实验室报告了实践样本 1 的合格结果。由于海关的限制，实践样本 2 只能送到其中 8 个实验室。成功分析了练习样本 1 的 13 个实验室被要求继续分析多重检测样本。第 14 实验室无法解决一些技术问题，因此无法使用其数据。在检测的 7 个样品中，6 个婴儿配方奶粉的结果符合 AOAC SMPR 2014.003 的要求，RSDr 为 1.4%至 4.7%，RSDR 为 8.1%至 11.6%。成人营养样品的结果超出了 SPMR 的范围，重复性（RSDr）为 9.9%，高于 SMPR ≤ 6% 的目标值，再现性（RSDR）为 12.1%，略高于 SMPR ≤ 12% 的目标值。

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Determination of β-Galactooligosaccharides (GOS) in Infant Formula: Collaborative Study, Final Action 2021.01

Background We previously published a method for the determination of β-Galactooligosaccharides (GOS) in Infant Formula and Adult Nutritionals which is currently First Action AOAC Method 2021.01. In this study, reproducibility data were collected to support the promotion of the method to Final Action. Method A collaborative study was organized, to which 14 laboratories from eight different countries participated. Initially, laboratories were requested to analyze two practice samples and request guidance from the study director in case of issues. Successful laboratories proceeded to analyze seven samples (six infant formula and one adult nutritional) received as blind duplicates. Results Thirteen laboratories reported acceptable results for practice sample 1. Practice sample 2 could only be delivered to eight of the laboratories due to restrictions at customs. The 13 laboratories successfully analyzing practice sample 1 were requested to continue with the analysis of the MLT samples. Laboratory 14 was unable to solve some technical difficulties, so their data could not be used. Out of the seven samples tested, results for six infant formula met the requirements of the AOAC SMPR 2014.003, with RSDr ranging from 1.4 to 4.7% and RSDR ranging from 8.1 to 11.6%. The adult nutritional sample returned results outside the range of SPMR, having repeatability (RSDr) of 9.9%, higher than the SMPR target of ≤ 6%, and reproducibility (RSDR) of 12.1%, just above the SMPR target of ≤ 12%.

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来源期刊

Journal of AOAC International 医学-分析化学

CiteScore

3.10

自引率

12.50%

发文量

144

审稿时长

2.7 months

期刊介绍： The Journal of AOAC INTERNATIONAL publishes the latest in basic and applied research in analytical sciences related to foods, drugs, agriculture, the environment, and more. The Journal is the method researchers'' forum for exchanging information and keeping informed of new technology and techniques pertinent to regulatory agencies and regulated industries.