The effect of processing method of cassava chips on the development of Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae)

Show simple item record Chijindu, E. N. Boateng, B.A. Ayertey, J.N. Cudjoe, A.R. Okonkwo, N.J. 2012-03-17T11:10:35Z 2017-10-14T11:57:05Z 2012-03-17T11:10:35Z 2017-10-14T11:57:05Z 2008
dc.identifier.citation African Journal of Agricultural Research 3(8), 537-541
dc.description.abstract Susceptibility of processed cassava chips to infestation by the Larger Grain Borer, Prostephanus truncatus (Horn) was investigated in the laboratory (25 - 34°C, 61 - 92% r. h and 12 h: 12 h light: dark regime). Chips of two varieties were variously processed by fermentation, parboiling and sun-drying and stored for different periods. About 150, 200 and 300 g of processed cassava chips in Kilner jars were artificially infested with 15 pairs of P. truncatus adults and stored for 49, 59 and 69 days respectively. Significant differences (P < 0.05) were observed in the mean numbers of adults recorded on the processed chips after 49 days of storage. Across varieties, fermented chips recorded the highest number of adults (407.0 ± 53.9), followed by 395.9 ± 34.5 and 351.0 ± 42.1 adults found on plain and sundried chips, respectively. Parboiled chips however supported the lowest number of adults (89.0 ± 16.4). The number of P. truncatus adults increased with increasing storage period on all chips. The overall mean weight loss recorded on plain, sun-dried and fermented chips were 71.5 ± 7.7%, 71.2, 6.7% and 71.7± 8.8% respectively after 69 days of storage by which time most of the chips had disintegrated completely. The lowest amount of loss, 20.9 ± 5.0%, was recorded on parboiled chips. The study showed that the practice of parboiling confers greater protection to cassava chips against infestation and losses due to P. truncatus than the other traditional fermentation and sun-drying methods. en_US
dc.language.iso en en_US
dc.publisher African Journal of Agricultural Research Vol. 3 (8), pp. 537-541 en_US
dc.subject Prostephanus truncatus en_US
dc.subject cassava chips en_US
dc.subject processing en_US
dc.subject susceptibility en_US
dc.subject Ghana en_US
dc.title The effect of processing method of cassava chips on the development of Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae) en_US
dc.type Article en_US

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