Ghanaian university develops first local grain moisture tester to curb post-harvest losses

GHANA – The Department of Agriculture Engineering in Kwame Nkrumah University of Science and Technology (KNUST) in Ghana has developed the first locally-made grain moisture tester.

According to a Ghana News Agency report, the device, known as ‘Grain-Mate Grain Moisture Tester’ is meant to accurately measure the moisture content in grains and animal feed to enhance good storage.

Mr Hero Godsway, an Agricultural Engineering Scientist of the Department, said that the device was designed to reduce to the barest minimum the perennial post-harvest losses encountered by farmers.

Mr Godsway added it had been designed for use by warehouse operators, grain drying facilities, storage companies, food processors, grain and poultry farmers, as well as agricultural extension officers.

With a lifespan of 10 years, it is expected to provide Ghanaian farmers and other local users with an alternative to the very expensive imported ones, which cost between US$387 (GHc2,000) and US$581 (GHc3,000) on the market.

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Mr Godsway said that determining the precise moisture content of grains will help to mitigate post-harvest losses mainly due to microbial growth during storage.

He highlighted that between 50 and 60 percent of cereals and grains could be lost post-harvest due to lack of technical efficiency.

According to him, the use of scientific storage methods especially during storage, could therefore reduce those losses to as low as one to two per cent.

Moisture monitoring in combination with other dry chain technologies have been identified as potential contributors to food security through reduction of post-harvest losses.

Post-harvest losses due to high moisture content especially in fresh fruits and vegetables often receive the most attention, but cereals, oilseeds and pulses account for more than 60% of the food calories lost globally.

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According to the Food and Agriculture Organization (FAO), postharvest losses reduce the income of the continent’s farmers and value chain actors that depend on farmers by about 15 per cent.

Sub-Saharan Africa (SSA) alone loses food grains worth about US$4 billion every year, according to a World Bank report.

Minimizing cereal losses in the supply chain could be one resource-efficient way that can help in strengthening food security, sustainably combating hunger, reducing the agricultural land needed for production, rural development, and improving farmers’ livelihoods.

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