Reduction of Aflatoxins in Apricot Kernels by Electronic and Manual Color Sorting

Toxins
Rosanna ZivoliMichele Solfrizzo

Abstract

The efficacy of color sorting on reducing aflatoxin levels in shelled apricot kernels was assessed. Naturally-contaminated kernels were submitted to an electronic optical sorter or blanched, peeled, and manually sorted to visually identify and sort discolored kernels (dark and spotted) from healthy ones. The samples obtained from the two sorting approaches were ground, homogenized, and analysed by HPLC-FLD for their aflatoxin content. A mass balance approach was used to measure the distribution of aflatoxins in the collected fractions. Aflatoxin B₁ and B₂ were identified and quantitated in all collected fractions at levels ranging from 1.7 to 22,451.5 µg/kg of AFB₁ + AFB₂, whereas AFG₁ and AFG₂ were not detected. Excellent results were obtained by manual sorting of peeled kernels since the removal of discolored kernels (2.6%-19.9% of total peeled kernels) removed 97.3%-99.5% of total aflatoxins. The combination of peeling and visual/manual separation of discolored kernels is a feasible strategy to remove 97%-99% of aflatoxins accumulated in naturally-contaminated samples. Electronic optical sorter gave highly variable results since the amount of AFB₁ + AFB₂ measured in rejected fractions (15%-18% of total kernels) ranged from 1...Continue Reading

References

Nov 10, 2006·Critical Reviews in Food Science and Nutrition·Bulent KabakIşil Var
Oct 11, 2007·Journal of Agricultural and Food Chemistry·Fernanda Robert De Mello, Vildes Maria Scussel
Feb 21, 2008·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·J W Dorner
Jan 8, 2013·International Journal of Food Microbiology·Thaiane O CalderariMarta H Taniwaki
Mar 19, 2013·Journal of Agricultural and Food Chemistry·Ilka HaaseMarkus Fischer
May 31, 2014·Journal of Agricultural and Food Chemistry·Rosanna ZivoliMichele Solfrizzo

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Citations

Jul 18, 2019·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Sebastián VicenteAna Pacin
Oct 4, 2020·Neurochemistry International·Maryam VasefiAnthony Osu
May 13, 2021·Comprehensive Reviews in Food Science and Food Safety·Abdoulie JallowPeiwu Li
May 30, 2021·Toxicon : Official Journal of the International Society on Toxinology·Mohammad Raza Rezaie, Neda Zareie

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Software Mentioned

Sistat
SigmaPlot
Apricot

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