Human food and animal feed can contain many different hazards, which may be biological, chemical, or physical. In most countries, there are regulations that limit the levels of these hazards permitted in food and feed so as to protect consumers. Optimally, the levels specified in the standards sh...
Sirma, A.J.
,
Lindahl, Johanna F.
,
Makita, K.
,
Senerwa, D.
,
Mtimet, Nadhem
,
Kang’ethe, E.K.
,
Grace, Delia
,
[The impacts of aflatoxin standards on health and nutrition in sub-Saharan Africa: The case of Kenya]
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The impacts of aflatoxin standards on health and nutrition in sub-Saharan Africa: The case of Kenya
Aflatoxins are toxic byproducts from some Aspergillus fungi, mainly Aspergillus flavus, colonizing crops before and after harvest, with preference for maize and groundnuts. In large quantities the toxins are mainly hepatotoxic, and can cause death due to liver failure. Chronic low-dose exposure h...
Lindahl, Johanna F.
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Senerwa, D.M.
,
Mwangi, G.
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Sirma, A.J.
,
Atherstone, Christine
,
Grace, Delia
,
[Are aflatoxins a One Health issue? Results and insights from studies on aflatoxins in the East African dairy value chains]
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Are aflatoxins a One Health issue? Results and insights from studies on aflatoxins in the East African dairy value chains
Aflatoxin-contaminated food is a public health concern. Contamination of staple foods
in Kenya has in the past led to loss of human lives as well as condemnation of large
quantities of food, contributing to food insecurity. This study investigated the occurrence
of aflatoxins in maize, millet and...
Sirma, A.J.
,
Senerwa, D.M.
,
Grace, Delia
,
Makita, K.
,
Mtimet, Nadhem
,
Kang'ethe, Erastus K.
,
Lindahl, Johanna F.
,
[Aflatoxin B1 occurrence in millet, sorghum and maize from four agro-ecological zones in Kenya]
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Aflatoxin B1 occurrence in millet, sorghum and maize from four agro-ecological zones in Kenya
In the tropics, staples such as maize are often contaminated with mycotoxins, harmful
by-products of fungal metabolism. In particular, high exposure to aflatoxins may cause
fatal illness in people and animals, while chronic exposure can cause liver cancer in
humans and, in domestic animals, growt...
Kiama, T.N.
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Lindahl, Johanna F.
,
Sirma, A.J.
,
Senerwa, D.M.
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Waithanji, Elizabeth M.
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Ochungo, P.A.
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Poole, Elizabeth J.
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Kang'ethe, Erastus K.
,
Grace, Delia
,
[Kenya dairy farmer perception of moulds and mycotoxins and implications for exposure to aflatoxins: A gendered analysis]
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Kenya dairy farmer perception of moulds and mycotoxins and implications for exposure to aflatoxins: A gendered analysis
Mycotoxin-producing fungi contaminate food and feeds before, during and after harvest.
Aflatoxins are important mycotoxins and aflatoxin B1 (AFB1) is a class 1 human
carcinogen (definitely carcinogenic). Aflatoxin M1 (AFM1) is a class 2B (possible)
human carcinogen. Aflatoxin B1 in feeds can decr...
Senerwa, D.M.
,
Sirma, A.J.
,
Mtimet, Nadhem
,
Kang'ethe, Erastus K.
,
Grace, Delia
,
Lindahl, Johanna F.
,
[Prevalence of aflatoxin in feeds and cow milk from five counties in Kenya]
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Prevalence of aflatoxin in feeds and cow milk from five counties in Kenya
This research reports a mapping of aflatoxin risk in the milk value chain in Kenya using
a geographic information systems (GIS) approach. The objective was to spatially locate
regions at risk by taking into account biophysical and socio-economic factors such as
humidity and rainfall, dairy cattle...
Ochungo, P.
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Lindahl, Johanna F.
,
Kayano, T.
,
Sirma, A.J.
,
Senerwa, D.M.
,
Kiama, T.N.
,
Grace, Delia
,
[Mapping aflatoxin risk from milk consumption using biophysical and socio-economic data: A case study of Kenya]
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Mapping aflatoxin risk from milk consumption using biophysical and socio-economic data: A case study of Kenya
Milk is an important commodity in Kenya; the country has the largest dairy herd and highest per capita milk consumption in East Africa. As such, hazards in milk are of concern. Aflatoxin M1 (AFM1) is a toxic metabolite of aflatoxin B1 (AFB1) excreted in milk by lactating animals after ingesting A...
Sirma, A.J.
,
Makita, K.
,
Grace, Delia
,
Senerwa, D.
,
Lindahl, Johanna F.
,
[Aflatoxin exposure from milk in rural Kenya and the contribution to the risk of liver cancer]
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Aflatoxin exposure from milk in rural Kenya and the contribution to the risk of liver cancer