บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Postharvest handling, transport and quality of sweet potato in Tanzania.

Tomlins, K. I.; Ndunguru, G. T.; Rwiza, E.; Westby, A.;

Journal of Horticultural Science and Biotechnology Year: 2000 Vol: 75 Issue: 5 Pages: 586-590 Ref: 12 ref.

2000

บทคัดย่อ

Postharvest handling, transport and quality of sweet potato in Tanzania.

Six commercial consignments (ranging from 2 to 12 sacks) of sweet potato, Ipomoea batatas, cultivars Polista and SPN/0, were surveyed over 2 seasons, from harvest to markets at Mwanza and Dar es Salaam in Tanzania. The quality of roots was assessed in sacks which were unloaded during transport. Dataloggers located at the centre of the sacks monitored the impact, temperature and humidity. The handling and transport system resulted in up to 20% and 86% of roots with severe breaks and skinning injury, respectively. Reductions in market value were up to 13%. Impact loggers indicated that the most severe impacts (>20 g) occurred during unloading and loading from road vehicles and ships. However, skinning injury and broken roots were correlated with a large number of minor impacts (less than or equal to 2 g). Cultivar or season did not generally affect the responses. The use of cardboard boxes filled with fewer roots instead of overfilled polypropylene sacks and adoption of improved management procedu

res in the handling and transport are recommended.