Mycotoxin contamination of home-grown maize in rural northern South Africa (Limpopo and Mpumalanga Provinces)

Pamella Mngqawa; G.S. Shephard; I.R. Green; S.H. Ngobeni; T.C. de Rijk; D.R. Katerere

doi:10.1080/19393210.2015.1121928

Mycotoxin contamination of home-grown maize in rural northern South Africa (Limpopo and Mpumalanga Provinces)

Pamella Mngqawa, G.S. Shephard, I.R. Green, S.H. Ngobeni, T.C. de Rijk, D.R. Katerere^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

32 Citations (Scopus)

Abstract

The aim of this study was to assess mycotoxin contamination of crops grown by rural subsistence farmers over two seasons (2011 and 2012) in two districts, Vhembe District Municipality (VDM, Limpopo Province) and Gert Sibande District Municiality (GSDM, Mpumalanga Province) in northern South Africa and to evaluate its impact on farmers’ productivity and human and animal health. A total of 114 maize samples were collected from 39 households over the two seasons and were analysed using a validated LC-MS/MS mycotoxins method. Aflatoxin B1 (AFB1) occurrence ranged from 1 to 133 μg kg-1 in VDM while AFB1 levels in GSDM were less than 1.0 μg kg-1 in all maize samples. Fumonisin B1 (FB1) levels ranged from 12 to 8514 μg kg-1 (VDM) and 11-18924 μg kg-1 (GSDM) in 92% and 47% positive samples respectively, over both seasons. Natural occurrence and contamination with both fumonisins and aflatoxins in stored home-grown maize from VDM was significantly (p < 0.0001) higher than from GSDM over both seasons.

Original language	English
Pages (from-to)	38-45
Journal	Food Additives & Contaminants Part B-Surveillance
Volume	9
Issue number	1
DOIs	https://doi.org/10.1080/19393210.2015.1121928
Publication status	Published - 2016

Keywords

aflatoxins
fumonisins
liquid chromatography-tandem mass spectrometry (LC-MS/MS)
Maize
multi-mycotoxin
subsistence farmers

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1080/19393210.2015.1121928

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title = "Mycotoxin contamination of home-grown maize in rural northern South Africa (Limpopo and Mpumalanga Provinces)",

abstract = "The aim of this study was to assess mycotoxin contamination of crops grown by rural subsistence farmers over two seasons (2011 and 2012) in two districts, Vhembe District Municipality (VDM, Limpopo Province) and Gert Sibande District Municiality (GSDM, Mpumalanga Province) in northern South Africa and to evaluate its impact on farmers{\textquoteright} productivity and human and animal health. A total of 114 maize samples were collected from 39 households over the two seasons and were analysed using a validated LC-MS/MS mycotoxins method. Aflatoxin B1 (AFB1) occurrence ranged from 1 to 133 μg kg-1 in VDM while AFB1 levels in GSDM were less than 1.0 μg kg-1 in all maize samples. Fumonisin B1 (FB1) levels ranged from 12 to 8514 μg kg-1 (VDM) and 11-18924 μg kg-1 (GSDM) in 92% and 47% positive samples respectively, over both seasons. Natural occurrence and contamination with both fumonisins and aflatoxins in stored home-grown maize from VDM was significantly (p < 0.0001) higher than from GSDM over both seasons.",

keywords = "aflatoxins, fumonisins, liquid chromatography-tandem mass spectrometry (LC-MS/MS), Maize, multi-mycotoxin, subsistence farmers",

author = "Pamella Mngqawa and G.S. Shephard and I.R. Green and S.H. Ngobeni and {de Rijk}, T.C. and D.R. Katerere",

year = "2016",

doi = "10.1080/19393210.2015.1121928",

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TY - JOUR

T1 - Mycotoxin contamination of home-grown maize in rural northern South Africa (Limpopo and Mpumalanga Provinces)

AU - Mngqawa, Pamella

AU - Shephard, G.S.

AU - Green, I.R.

AU - Ngobeni, S.H.

AU - de Rijk, T.C.

AU - Katerere, D.R.

PY - 2016

Y1 - 2016

N2 - The aim of this study was to assess mycotoxin contamination of crops grown by rural subsistence farmers over two seasons (2011 and 2012) in two districts, Vhembe District Municipality (VDM, Limpopo Province) and Gert Sibande District Municiality (GSDM, Mpumalanga Province) in northern South Africa and to evaluate its impact on farmers’ productivity and human and animal health. A total of 114 maize samples were collected from 39 households over the two seasons and were analysed using a validated LC-MS/MS mycotoxins method. Aflatoxin B1 (AFB1) occurrence ranged from 1 to 133 μg kg-1 in VDM while AFB1 levels in GSDM were less than 1.0 μg kg-1 in all maize samples. Fumonisin B1 (FB1) levels ranged from 12 to 8514 μg kg-1 (VDM) and 11-18924 μg kg-1 (GSDM) in 92% and 47% positive samples respectively, over both seasons. Natural occurrence and contamination with both fumonisins and aflatoxins in stored home-grown maize from VDM was significantly (p < 0.0001) higher than from GSDM over both seasons.

AB - The aim of this study was to assess mycotoxin contamination of crops grown by rural subsistence farmers over two seasons (2011 and 2012) in two districts, Vhembe District Municipality (VDM, Limpopo Province) and Gert Sibande District Municiality (GSDM, Mpumalanga Province) in northern South Africa and to evaluate its impact on farmers’ productivity and human and animal health. A total of 114 maize samples were collected from 39 households over the two seasons and were analysed using a validated LC-MS/MS mycotoxins method. Aflatoxin B1 (AFB1) occurrence ranged from 1 to 133 μg kg-1 in VDM while AFB1 levels in GSDM were less than 1.0 μg kg-1 in all maize samples. Fumonisin B1 (FB1) levels ranged from 12 to 8514 μg kg-1 (VDM) and 11-18924 μg kg-1 (GSDM) in 92% and 47% positive samples respectively, over both seasons. Natural occurrence and contamination with both fumonisins and aflatoxins in stored home-grown maize from VDM was significantly (p < 0.0001) higher than from GSDM over both seasons.

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KW - fumonisins

KW - liquid chromatography-tandem mass spectrometry (LC-MS/MS)

KW - Maize

KW - multi-mycotoxin

KW - subsistence farmers

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DO - 10.1080/19393210.2015.1121928

M3 - Article

SN - 1939-3210

VL - 9

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JO - Food Additives & Contaminants Part B-Surveillance

JF - Food Additives & Contaminants Part B-Surveillance

IS - 1

ER -

Mycotoxin contamination of home-grown maize in rural northern South Africa (Limpopo and Mpumalanga Provinces)

Abstract

Keywords

UN SDGs

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