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Grain Hermetic Storage and Post-Harvest Loss Reduction in Sub-Saharan Africa: Effects on Grain Damage, Weight Loss, Germination, Insect Infestation, and Mold and Mycotoxin Contamination

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Abstract

Purpose

The purpose of this study was to review the different hermetic storage (HS) systems used in Sub-Saharan Africa (SSA) and their effectiveness against the agents of storage quality deterioration.

Method

Relevant studies on grain HS in SSA conducted in the past two decades for effectiveness against the agents of storage losses are reviewed. Specifically, the study comprehensively reviewed the effectiveness of HS technologies against insect-induced damage and weight loss, seed germination, insect infestation, and mold and mycotoxin contamination. Traditional grain storage methods and HS technologies used in SSA are reviewed, including those suitable for smallholder farmers and traders. Future developments and modifications to HS are also discussed.

Results

Most grain HS studies are carried out in SSA where post-harvest storage losses are considered one of the world’s largest. Scholarly studies compared the performance of HS against traditional technologies for storage periods of up to 7 months and a few extending to 1 year or more. Commonly studied HS technologies include hermetic layered bags and grain silos. In general, HS offers superior protection against the agents of grain deterioration for long-term storage compared to conventional storage technologies.

Conclusion

HS technologies are highly effective in protecting stored grains from quantitative and qualitative storage losses and thus guarantee that stored grains can attract better prices and are safe and nutritious to the consumer.

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Abbreviations

SSA:

Sub-Saharan Africa

PHLs:

post-harvest losses

HS:

Hermetic storage

HDPE:

High-density polyethylene

PICS:

Purdue improved crop storage bag

PP:

polypropylene bag

SG:

SuperGrain bag

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Acknowledgements

This work was funded by the Government of Uganda through the Makerere University Research Innovations Fund (Mak-RIF) [Grant No. RIF1/CAES/022].

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  1. Department of Agricultural and Biosystems Engineering, School of Food Technology, Nutrition & Bioengineering, Makerere University, P.O. Box 7062, Kampala, Uganda

    Francis Okori, Sam Cherotich, Emmanuel Baidhe, Allan John Komakech & Noble Banadda

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Okori, F., Cherotich, S., Baidhe, E. et al. Grain Hermetic Storage and Post-Harvest Loss Reduction in Sub-Saharan Africa: Effects on Grain Damage, Weight Loss, Germination, Insect Infestation, and Mold and Mycotoxin Contamination. J. Biosyst. Eng. 47, 48–68 (2022). https://doi.org/10.1007/s42853-022-00130-4

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