Effect of pH and pulsed electric field process parameters on the aflatoxin reduction in model system using response surface methodology: Effect of pH and PEF on Aflatoxin Reduction

Journal of Food Science and Technology
Subramanian VijayalakshmiS Sunny Kumar

Abstract

The presence of aflatoxin, a carcinogenic and toxigenic secondary metabolite produced by Aspergillus species, in food matrix has been a major worldwide problem for years now. Food processing methods such as roasting, extrusion, etc. have been employed for effective destruction of aflatoxins, which are known for their thermo-stable nature. The high temperature treatment, adversely affects the nutritive and other quality attributes of the food, leading to the necessity of application of non-thermal processing techniques such as ultrasonication, gamma irradiation, high pressure processing, pulsed electric field (PEF), etc. The present study was focused on analysing the efficacy of the PEF process in the reduction of the toxin content, which was subsequently quantified using HPLC. The process parameters of different pH model system (potato dextrose agar) artificially spiked with aflatoxin mix standard was optimized using the response surface methodology. The optimization of PEF process effects on the responses aflatoxin B1 and total aflatoxin reduction (%) by pH (4-10), pulse width (10-26 µs) and output voltage (20-65%), fitted 2FI model and quadratic model respectively. The response surface plots obtained for the processes were of...Continue Reading

References

Sep 4, 2007·International Journal of Food Microbiology·Naresh Magan, David Aldred
May 19, 2010·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Yousif M A IdrisAdam Ali Mohamed
Sep 16, 2011·Journal of the Science of Food and Agriculture·Yuanyuan ZhangXiaosong Hu
Jan 1, 2010·Comprehensive Reviews in Food Science and Food Safety·Rajeev BhatA A Karim

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Citations

Jun 22, 2021·Journal of Environmental Health Science & Engineering·Gokul Pandharinath ShindeAnil Dutt Semwal

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