期刊名称：Journal of Nutritional Science and Vitaminology
印刷版ISSN：0301-4800
电子版ISSN：1881-7742
出版年度：2019
卷号：65
期号：3
页码：219-223
DOI：10.3177/jnsv.65.219
出版社：Center for Academic Publications Japan
摘要：The amino acid composition table (AACT) plays a pivotal role in examining the association between dietary amino acid intake and physical conditions. The updated version, AACT 2015, has been markedly expanded; however, most additions are not based on analytical values. The Food and Agriculture Organization (FAO) of the United Nations and the World Health Organization (WHO) recommend that protein contents be calculated as the sum of amino acid residues (PROTCAA). However, due to the lack of a validated AACT, protein content calculated as reference nitrogen multiplied by a nitrogen to protein conversion factor (PROTRN) is still commonly used. In this study, validity of the estimated dietary amino acid values via the AACT 2015 was examined by comparing differences between the estimated and analytical values, for 14 consecutive days’ meals provided in an elder care facility. There were no major differences between the analytical and estimated values over the 14 d; however, noticeable daily differences sometimes emerged. These results indicate that the AACT 2015 may contain accidental errors, but allows the estimation of habitual amino acid intake. In the near future, PROTCAA will become the international standard. It will be necessary to convert PROTRN values to PROTCAA to refer to past reports and data; we have determined a correction factor (0.896) for this conversion.
关键词：amino acid composition table 2015;Kjeldahl analysis;amino acid analysis;protein-to-tryptophan conversion factor;protein contents calculated as the sum of amino acid residues
