Occurrence of Aspergillus section Flavi and section Nigri and aflatoxins in raw cashew kernels (Anacardiumoccidentale L.) from Benin

Y. Lamboni, J.C. Frisvad, K. Hell, A.R. Linnemann, M.J.R. Nout, M. Tamo, K. Nielsen, M.A.J.S. van Boekel, E.J. Smid

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Abstract

The objective of this study was to evaluate the presence of Aspergillus section Flavi and A. section Nigri in cashew nuts harvested in the Northern Guinea (NG) and Southern Sudanian (SS) agro-ecological zones of Benin. Also, the presence of aflatoxins was investigated. For detection of fungal contamination, a total of
100 kernels/sample (with disinfection) and 40 kernels/sample (without disinfection) were plated. Seventy samples from fourteen villages were used. Aflatoxins occurrence was analysed on 84 samples by ultraehigh performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS). The average water content and the cashew nuts count were respectively 8.6% and 172 nuts/kg in NG and 8.7% and 174 nuts/kg in SS. Significant differences between villages in both zones were found for both water content and nuts count. In disinfected samples, strains of Aspergillus section Nigri were predominant, in
NG and SS zones (90.2% and 87.2%) respectively. When non disinfected kernels were plated, A. section Nigri was predominant in both NG and SS zones, with percentages of 89.7% and 93.4%, respectively. None of the 84 nuts samples were positive for natural occurrence of aflatoxins with a detection limit of 0.05
e0.2 mg/kg.
Original languageEnglish
Pages (from-to)71-77
JournalFood Science and Technology = Lebensmittel-Wissenschaft und Technologie
Volume70
DOIs
Publication statusPublished - 2016

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Anacardium
Benin
cashew nuts
Nuts
Aflatoxins
Aspergillus
aflatoxins
Guinea
nuts
seeds
Disinfection
disinfection
sampling
villages
water content
agroecological zones
Water
Tandem Mass Spectrometry
Liquid Chromatography
liquid chromatography

Cite this

@article{e12099d2fbb84f2a97d54ffc218febd3,
title = "Occurrence of Aspergillus section Flavi and section Nigri and aflatoxins in raw cashew kernels (Anacardiumoccidentale L.) from Benin",
abstract = "The objective of this study was to evaluate the presence of Aspergillus section Flavi and A. section Nigri in cashew nuts harvested in the Northern Guinea (NG) and Southern Sudanian (SS) agro-ecological zones of Benin. Also, the presence of aflatoxins was investigated. For detection of fungal contamination, a total of100 kernels/sample (with disinfection) and 40 kernels/sample (without disinfection) were plated. Seventy samples from fourteen villages were used. Aflatoxins occurrence was analysed on 84 samples by ultraehigh performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS). The average water content and the cashew nuts count were respectively 8.6{\%} and 172 nuts/kg in NG and 8.7{\%} and 174 nuts/kg in SS. Significant differences between villages in both zones were found for both water content and nuts count. In disinfected samples, strains of Aspergillus section Nigri were predominant, inNG and SS zones (90.2{\%} and 87.2{\%}) respectively. When non disinfected kernels were plated, A. section Nigri was predominant in both NG and SS zones, with percentages of 89.7{\%} and 93.4{\%}, respectively. None of the 84 nuts samples were positive for natural occurrence of aflatoxins with a detection limit of 0.05e0.2 mg/kg.",
author = "Y. Lamboni and J.C. Frisvad and K. Hell and A.R. Linnemann and M.J.R. Nout and M. Tamo and K. Nielsen and {van Boekel}, M.A.J.S. and E.J. Smid",
year = "2016",
doi = "10.1016/j.lwt.2016.02.017",
language = "English",
volume = "70",
pages = "71--77",
journal = "Food Science and Technology = Lebensmittel-Wissenschaft und Technologie",
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}

Occurrence of Aspergillus section Flavi and section Nigri and aflatoxins in raw cashew kernels (Anacardiumoccidentale L.) from Benin. / Lamboni, Y.; Frisvad, J.C.; Hell, K.; Linnemann, A.R.; Nout, M.J.R.; Tamo, M.; Nielsen, K.; van Boekel, M.A.J.S.; Smid, E.J.

In: Food Science and Technology = Lebensmittel-Wissenschaft und Technologie, Vol. 70, 2016, p. 71-77.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Occurrence of Aspergillus section Flavi and section Nigri and aflatoxins in raw cashew kernels (Anacardiumoccidentale L.) from Benin

AU - Lamboni, Y.

AU - Frisvad, J.C.

AU - Hell, K.

AU - Linnemann, A.R.

AU - Nout, M.J.R.

AU - Tamo, M.

AU - Nielsen, K.

AU - van Boekel, M.A.J.S.

AU - Smid, E.J.

PY - 2016

Y1 - 2016

N2 - The objective of this study was to evaluate the presence of Aspergillus section Flavi and A. section Nigri in cashew nuts harvested in the Northern Guinea (NG) and Southern Sudanian (SS) agro-ecological zones of Benin. Also, the presence of aflatoxins was investigated. For detection of fungal contamination, a total of100 kernels/sample (with disinfection) and 40 kernels/sample (without disinfection) were plated. Seventy samples from fourteen villages were used. Aflatoxins occurrence was analysed on 84 samples by ultraehigh performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS). The average water content and the cashew nuts count were respectively 8.6% and 172 nuts/kg in NG and 8.7% and 174 nuts/kg in SS. Significant differences between villages in both zones were found for both water content and nuts count. In disinfected samples, strains of Aspergillus section Nigri were predominant, inNG and SS zones (90.2% and 87.2%) respectively. When non disinfected kernels were plated, A. section Nigri was predominant in both NG and SS zones, with percentages of 89.7% and 93.4%, respectively. None of the 84 nuts samples were positive for natural occurrence of aflatoxins with a detection limit of 0.05e0.2 mg/kg.

AB - The objective of this study was to evaluate the presence of Aspergillus section Flavi and A. section Nigri in cashew nuts harvested in the Northern Guinea (NG) and Southern Sudanian (SS) agro-ecological zones of Benin. Also, the presence of aflatoxins was investigated. For detection of fungal contamination, a total of100 kernels/sample (with disinfection) and 40 kernels/sample (without disinfection) were plated. Seventy samples from fourteen villages were used. Aflatoxins occurrence was analysed on 84 samples by ultraehigh performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS). The average water content and the cashew nuts count were respectively 8.6% and 172 nuts/kg in NG and 8.7% and 174 nuts/kg in SS. Significant differences between villages in both zones were found for both water content and nuts count. In disinfected samples, strains of Aspergillus section Nigri were predominant, inNG and SS zones (90.2% and 87.2%) respectively. When non disinfected kernels were plated, A. section Nigri was predominant in both NG and SS zones, with percentages of 89.7% and 93.4%, respectively. None of the 84 nuts samples were positive for natural occurrence of aflatoxins with a detection limit of 0.05e0.2 mg/kg.

U2 - 10.1016/j.lwt.2016.02.017

DO - 10.1016/j.lwt.2016.02.017

M3 - Article

VL - 70

SP - 71

EP - 77

JO - Food Science and Technology = Lebensmittel-Wissenschaft und Technologie

JF - Food Science and Technology = Lebensmittel-Wissenschaft und Technologie

SN - 0023-6438

ER -