Shittu, A.I and Remi-Esan, I.A (2017) Influence of fermentation period and particle size on Cyanogenic content of Gari in Ibadan metropolis. In: LASPOTECH, 10th – 13th April, 2017., laspotech, oshogbo.
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Abstract
Gari constitutes an important staple food in the tropical region. The consumption of cassava and its products is on the increase thus the need to examine the safety of gari produced. The study assessed the cyanogenic content in gari of various particle sizes. Two major processing Centres in Ibadan Metropolis were purposively selected. Each gari sample was sieved using different mesh sizes; 425µm, 850µm, and 1000µm. The free and total cyanide content was analyzed. In Centre 1, the fermentation time of the samples collected varied while in Centre 2, all samples were allowed to ferment for one day and some were mixed with red palm oil. There was a gradual decrease in the free cyanogenic content with increasing particle size of the gari samples. The highest residual HCN in Centre 1 was recorded in sample A (10.19, 9.29, 8.66 and 7.44ppm) while Centre 2 recorded the highest residual HCN in sample M-T (13.73, 13.32, 11.53 and 10.14 ppm) with aperture size of <425µm, 425-850µm, 850-1000µm and >1000µm respectively. The mean HCN concentration with increasing particle size of gari (white and yellow) in the two processing Centres were however not significantly different (P>0.05). Fermentation had a significant effect (P<0.05) on the cyanogenic content of gari. Fermentation was a veritable tool in gari production and particle size distribution of gari may be an important tool in achieving a safer consumption of the product since the larger the particle size, the lesser the cyanide content.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Chemistry |
| Depositing User: | Mr Taiwo Egbeyemi |
| Date Deposited: | 14 Jun 2020 16:26 |
| Last Modified: | 14 Jun 2020 16:26 |
| URI: | http://eprints.federalpolyilaro.edu.ng/id/eprint/561 |
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