Amino Acids Working Group Meeting Book (July 3, 2018)

Official Methods • ISO 13903 (2005)/BIS 2007: Animal feeding stuffs Determination of amino acids content – Essentially the same as AOAC 994.12 with option for running with or witout performic acid oxidation. Trp is not determined. Analysis by ion exchange/ninhydrin. • ISO 13904 (2005)/BIS 2007: Animal Feeding stuffs Determination of tryptophan content – Essentially the same as AOAC 988.15, substituting BaOH for NaOH. RP HPLC/F.

Regulatory Guidance – Infant Formula • CODEX • EU • AU/NZ Food Standards Code • GB (Follows Codex) • FDA (No explicit AA requirements)

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