4 research outputs found
Aflatoxin B1 levels in groundnut products from local markets in Zambia
In Zambia, groundnut products (milled groundnut powder, groundnut kernels) are mostly sold in under-regulated markets. Coupled with the lack of quality enforcement in such markets, consumers may be at risk to aflatoxin exposure. However, the level of aflatoxin contamination in these products is not known. Compared to groundnut kernels, milled groundnut powder obscures visual indicators of aflatoxin contamination in groundnuts such as moldiness, discoloration, insect damage or kernel damage. A survey was therefore conducted from 2012 to 2014, to estimate and compare aflatoxin levels in these products (n = 202), purchased from markets in important groundnut growing districts and in urban areas. Samples of whole groundnut kernels (n = 163) and milled groundnut powder (n = 39) were analysed for aflatoxin B1 (AFB1) by competitive enzyme-linked immunosorbent assay (cELISA). Results showed substantial AFB1 contamination levels in both types of groundnut products with maximum AFB1 levels of 11,100 ÎĽg/kg (groundnut kernels) and 3000 ÎĽg/kg (milled groundnut powder). However, paired t test analysis showed that AFB1 contamination levels in milled groundnut powder were not always significantly higher (P > 0.05) than those in groundnut kernels. Even for products from the same vendor, AFB1 levels were not consistently higher in milled groundnut powder than in whole groundnut kernels. This suggests that vendors do not systematically sort out whole groundnut kernels of visually poor quality for milling. However, the overall contamination levels of groundnut products with AFB1 were found to be alarmingly high in all years and locations. Therefore, solutions are needed to reduce aflatoxin levels in such under-regulated markets
Mitigating climate change through reduced food loss and waste
Agenda:
Introduction to CCAFS and CGIAR: Why food loss and waste? - Lini Wollenberg
The Food Loss and Waste Calculator and how it can be used to mitigate climate change - Jan Broeze
Understanding Smallholder Farmers’ Post-Harvest Behaviors: Evidence from Malawi - Tabitha Nindi
Effects of Amending Soil with Organic Matter on Population Change of Aspergillus flavus and Antagonistic Microbiome: and on Aflatoxin Contamination of Groundnut in Malawi - Norah Machinjiri
Quantifying GHG emissions of agrifood chain and associated food loss and food waste in China - Li Xue
A Stepping-Stone to the evidence base for the mitigation of N2O emission from reduced food loss and waste in China and Myanmar - Xia Liang
Food waste reduction entrepreneurship initiative and associated impacts: a Life Cycle Sustainability Assessment - Daniele Matzembache