I-Nitrosamine yenye yezona zinto zintathu ziyaziwa kakhulu emhlabeni, ezinye ezimbini zi-aflatoxins kunye ne-benzo[a]pyrene.I-Nitrosamine yenziwe yi-nitrite kunye ne-amine yesibini kwiprotheni kwaye isasazwa ngokubanzi kwindalo.Umxholo we-nitrosamine kwintlanzi enetyuwa, i-shrimps eyomileyo, ibhiya, i-bacon kunye ne-sausage iphezulu.Ukubeka ixesha elide lokuzaliswa kwenyama kunye nemifuno kunokuvelisa i-nitrite. .I-nitrite kunye ne-nitrate ziityuwa eziqhelekileyo ze-inorganic kukutya kwansuku zonke kunye nokusela amanzi.Kukholelwa ngokubanzi ukuba ukugqithiswa kwezi zinto kunokukhokelela kwi-methemoglobinemia kwaye kuvelise i-carcinogenic nitrosamines emzimbeni.I-Nitrate kunye ne-nitrite zingcoliseko ze-ionic kwi-GB 2762-2017 egama lingu "Umgangatho woKhuseleko lokuTya lweSizwe -Umda wokungcola kokutya".I-GB 5009.33-2016 ebizwa ngokuthi "iMigangatho yoKhuseleko lokuTya kweSizwe ekuQiniselweni kweNitrate kunye neNitrate kuKutya" kukulungelelanisa ukuzimisela kwezi zinto zimbini, kunye ne-ion chromatography njengendlela yokuqala ifakwe kumgangatho.
Iisampuli zenziwe kwangaphambili ngokwe-GB / T 5009.33, kwaye emva kweprotheyini yemvula kunye nokususwa kwamafutha, iisampuli zikhutshwe kwaye zihlanjululwe ngeendlela ezihambelanayo.Ukusebenzisa iCIC-D160 ion chromatograph ,SH-AC-5 anion column, 10.0 mM NaOH eluent kunye nebipolar pulse conductance method,phantsi kweemeko ezicetyiswayo zechromatographic, ichromatogram imi ngolu hlobo lulandelayo.
Ixesha lokuposa: Apr-18-2023