아미 노태 질소 함량 은 Formol 적정 법 ( AOAC . 1990 . Official methods of analysis . 15 th eds . Association of official analytical chemists , Washington DC . p 335 ) , 암모니아 태질 소 함량 은 Forlin 법 ( AOAC . 1990 . Official methods of analysis . 15 th eds . Association of official analytical chemists , Washington DC . p 335 ) 으로 측정 하 였 다 .