標(biāo)準(zhǔn)編號(hào):	GB/T 5009.179-2003
中文名稱:	火腿中三甲胺氮的測(cè)定
英文名稱:	Determination of trimethylamine nitrogen in ham
中標(biāo)分類:	C53    食品衛(wèi)生
行業(yè)分類:	GB    國(guó)家標(biāo)準(zhǔn)
ICS分類:	67.040 67.040    食品綜合 67.040
發(fā)布機(jī)構(gòu):	中華人民共和國(guó)建設(shè)部、國(guó)家質(zhì)量監(jiān)督檢驗(yàn)檢疫總局
發(fā)布日期:	2003-8-11
實(shí)施日期:	2004-1-1
標(biāo)準(zhǔn)狀態(tài):	superseded
被新標(biāo)準(zhǔn)替代:	GB 5009.179-2016 食品安全國(guó)家標(biāo)準(zhǔn) 食品中三甲胺的測(cè)定
被替代日期:	2017-3-1
作廢日期:	2017-03-01
替代舊標(biāo)準(zhǔn):	GB 2731-1988 火腿衛(wèi)生標(biāo)準(zhǔn)
翻譯語(yǔ)言:	英文
文件格式:	PDF
中文字符數(shù):	3000 字
翻譯價(jià)格(元):	180.0
交付時(shí)間:	付款后 1 個(gè)工作日

1 Scope This standard specifies determination of trimethylamine nitrogen in ham. This standard is applicable to determination of trimethylamine nitrogen in ham. 2 Principle Trimethylamine [(CH3)3N], as a volatile alkali nitrogenous substance, is produced when fish flesh reduces trimethylamine oxide [(CH3)3NO] due to the action of bacteria in the decay process. It is extracted into anhydrous toluene to generate yellow picric acid trimethylamine salt under the action of picric acid. Then make it compare colour with standard tube. The content of trimethylamine nitrogen in the sample can be determined. 3 Reagent 3.1 20% trichloroacetic acid solution.