1659-1321 1659-1321 S1659-13212019000300821 10.15517/am.v30i3.36625 Costa Rica Costa Rica 00 12 2019 00 12 2019 30 3 821 840

ANKOM 2012 AOAC (Association of Official Analytical Chemists) 1990 15 2016 2013 96 7195-209 2012 83 650-5 2001 2014 186 8249-65 2014 71 451-7 2016 108 1603-13 2017 3 2018 98 4205-15 1947 105 367-8 2016 7 1787-800 2012 41 883-8 2011 6 2522-6 NRC (National Research Council) 2001 7 2009 43 351-4 2016 38 31-6 2018 13 1 1 17-30 2017 24 y 25 de agosto 2009 47 203-13 2017 69 845-53 2014 217-218 140-51 2014 8 1551-697 2016 222 200-12 2013 197 696-711 1985 1990 74 3583-97 2013 37 91-101 2013 37 91-103 2010 34 31-42 2002 9 35-36 35-36 69-74 1977 14 615-20 2018 69 715-8 2010 159 18-26