Aflatoxin levels fluctuation analysis in Demineralized whey powder production

Subject Areas : Food Science and Technology

ایمان Ebdali takalloo ¹ , علی Mohamadi sani ²

1 - M.Sc Graduate of Food Science and Technology, Gochun Branch, Islamic Azad University, Quchan, Iran.
2 - Associate Professor, Department of Food Science and Technology, Gochun Branch, Islamic Azad University, Quchan, Iran

Received: 2014-03-07 Accepted : 2015-04-15 Published : 2015-02-20

Keywords: Aflatoxin M1, High performance liquid chromatography, Whey Powder, Demineralization,

Abstract :

Demineralized whey powder is one of the materials which isused in medical and infant milk powder industries recently. The aim of this study was to evaluate theratio of aflatoxin M1 (AFM1) detoxification in 90% demineralized whey powder (DWP-90), produced from sweet whey. For this purpose, 36 samples gathered from different steps of production line including Sweet whey (12 sample), demineralized whey (12 sample) and DWP-90 (12 sample). The samples gathered from Nutricia-MMP factory during one year (from 2012 to 2013). AFM1 detected by High performance liquid chromatography (HPLC) method. Based on results, AFM1 was found in 100% of the samples but the concentration of AFM1 in all samples was less than maximum limit defined by Iranian national standards, No 5925 (100ppt for wheyand 1000ppt for whey powder). The Average amount of AFM1 in sweet whey (32.5ppt) and DWP-90 (45.8ppt) was less than maximum limit in CODEX and EC 1881/2006, defined for raw milk (50ppt). Considering total solid in sweet whey (6%±0.1) and DWP-90 (٪97) and concentration of AFM1 in these samples, about 91% reduction was found in concentration of AFM1during DWP-90 production. 

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