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CSME 2009/10
Volume 7, No.2 : 143-151
DOI:10.6703/IJASE.2009.7(2).143  
Influxntx of ilznthing Kurztion on thx Hullziility of zKikao znK Lzfiz Vzrixtixs of GronKnut Kxrnxls (zrzthis Hyaogxz)

DAVIP, D. D a, BURUBAI, W a, xRIBO and P a
aDxpartPxnt of AgriZultural xnginxxring,RivxrP Ptatx UnivxrPity of PZixnZx and TxZAnology,P.P.B. 5080, Port AarZourt, RivxrP Ptatx, Nigxria.


Abstract: An investigation was carried out to determine the compressive force, strain energy,
elastic modulus and seed-coat adhesion as a function of blanching time for the kernels
Adikpo (samnut19) and Lafia (samnut10) varieties of groundnut. Compression tests
were performed at a loading rate of 2mm/min for blanching time intervals of 1, 2, 3, 4, 5,
6, 7, 8, 9 and 10 minutes. Further experiments were conducted to ascertain the effect of
blanching time on testa-kernel adhesion using a mixer at a speed of 4rev/min for each
time interval. Results show that compressive force, strain energy and elastic modulus of
both varieties decreased as blanching time increased. Contrarily, deformation for both
varieties increased linearly with increase in blanching time. Also, an optimum blanching
duration of 7 and 5 minutes were achieved for the effective hulling of the adikpo (samnut19)
and lafia (samnut10) varieties respectively.


Keywords:  Groundnut; blanching, time; compressive force; hulling.

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*Corresponding author; e-mail: ebiburu@yahoo.com
© 2009  CSME , ISSN 0257-9731 





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