Chapters authored
Effect of Harvesting Time and Drying Methods on Aflatoxin Contamination in Groundnut in Mozambique
The production and utilization of groundnut have increased tremendously across all provinces of Mozambique. However, the presence of aflatoxins has remained a critical food concern in the human diet. In this study, the effect of harvesting time and drying methods on aflatoxin contamination was examined in Northern Mozambique. A randomized complete block design in a split-split plot arrangement with four replications was used with groundnut varieties as the main plot and harvesting dates and drying methods as the subplots. Groundnut samples were analyzed for aflatoxin using the Mreader. In both locations, field observations indicated that on average, aflatoxin contamination levels were lower at physiological maturity (≤10 ppb) compared to harvesting 10 days before (≤15 ppb) and 10 days after physiological maturity (≥20 ppb). It was also observed that the two drying methods were effective in prevention of aflatoxin contamination on groundnut kernels to levels lower than 20 ppb. Aflatoxin contamination levels were significantly lower (≤12 ppb) as a result of the A-Frame than the tarpaulin method. The results of this study, therefore, have indicated that proper postharvest management of groundnuts, such as harvesting at physiological maturity and improved drying, gave lowest aflatoxin contamination levels.
Part of the book: Mycotoxins
Macadamia Nuts as a Supplement to Cereal-Based Diets in Malawi
Macadamia is a high value tree crop with rising global demand. As a leading producer, Malawi has seen rapid expansion of macadamia orchards, indicating the crop’s growing economic and nutritional importance. Macadamia nuts serve as a means of income generation and provision of high-quality nutrition among producers and consumers. As a consequence of these benefits, macadamia nut production is rising within the country. Rising domestic and international demand suggests macadamia production will help in economic growth in production areas. Integrating macadamia nuts into local diets could also provide nutritional benefits, allowing Malawi to simultaneously improve well-being and prosperity. To fully utilize this potential, Malawi needs strategic expansion plans for the crop. A comprehensive assessment of current and future suitable production areas is necessary. By matching production capacity to area’s ecological conditions, yields can be optimized within sustainable limits. With mindful, coordinated support for the nascent macadamia industry, Malawi can leverage this crop for healthier, more resilient communities.
Part of the book: Nut Consumption and Usefulness in the Modern World [Working title]