Study on post-harvest quantitative and qualitative losses of potato tubers from two different road access districts of Jimma zone, South West Ethiopia

Abstract

One of the main challenges facing Ethiopia today is to ensure food security for its highly increasing population growth. Although the country's production is much lower than the national demand, there are high post-harvest food losses. Among several causes at different levels, absence of infrastructure plays a critical role in quantitative and qualitative losses of mainly fruit, vegetable, root and tuber crops. This study was initiated to investigate impact of two different production areas having different road access on qualitative and quantitative loss of potato tuber in extended storage time. Load tracking approach was used by simulating existing postharvest handling and storage practice of potato tuber in the study area. Quantitative post-harvest loss assessment along the supply chains, qualitative loss and shelf life estimation at retail market were investigated using standard methods. Results showed that more mechanical damages and seepage loss were observed in case of poor road quality and transportation. During extended storage time (30 days) at ambient environment, potato tubers transported from Dedo to Jimma resulted in high average weight loss (17.9 ± 0.9%), significant loss in firmness (7.0 ± 0.6N in average) and average vitamin C content of 9.20 ± 0.05mg/100g as compared to tubers transported from Seka to Jimma market. This implies that, lack of good road access and transportation facility contributed for more external mechanical damages and internal injuries which will critically enhance rate of degradation of tubers in later stages of storage.

Storability of Potato Varieties Under Ordinary Storage Condition in Panauti, Nepal

“…The ideal relative humidity for storing potato is 90-95% (Woodwell et al, 2009). (Kuyu et al, 2019). The degree of weight loss during storage relies on genotype which was also linked to the present study (Patel et al, 2002).…”

“…Total post-harvest losses of potato at market level in Ethiopia was estimated about 5.95 kg/100 kg out of which contribution of losses at storage level was 1.18 kg/100 kg (19.79% of the total loss) (Raghuvanshi et al, 2018). In several supply chain stages, in average 12.08 % of the potato tubers are lost per hectare (Kuyu et al, 2019). Reduction of Postharvest losses is a considerable component of ensuring future global food security (Aulakh et al, 2013).…”

A scoping review of interventions for crop postharvest loss reduction in sub-Saharan Africa and South Asia

“…Sorting and storage of undamaged yams led to no decay during 36 weeks of storage compared with 80-100% decay in yams with cuts 34 . In the only study on infrastructure, better road quality reduced losses of potato in Ethiopia 35 .…”

IoT based Smart Technology for Post-Harvest Handling in Agro Industry

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