A baseline survey of tiger nut (&lt;i&gt;Cyperus esculentus&lt;/i&gt;) production in the Kwahu South District of Ghana

Tetteh, J.P.; Ofori, Emmanuel Owusu

doi:10.4314/gjas.v31i2.1934

Cited by 17 publications

(22 citation statements)

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“…Tiger nuts are very popular in Ghana because of the milk derived from the nuts popularly known as "Atadwe" milk. It is claimed to be of high nutritional value and an aphrodisiac (Tetteh & Ofori, 1997). The value of the preservation method proposed in this work would be in obtaining better yield of milk and quality of physicochemical properties of products derived from the tiger nuts.…”

Section: Viscosity (Centipoises Cp) Of Milk Prepared From Unirradiatementioning

confidence: 99%

“…Despite these benefits, tiger nut is currently an underutilised crop in Ghana. It is locally consumed in its fresh state and there is no significant commercial product from the nut although it is highly exploited as cherished milk-like beverage called "Atadwe milk" (Tetteh & Ofori, 1997). Twelve fungal species, mostly toxigenic, including Aspergillus flavus, Aspergillus parasiticus and Aspergillus ochraceus were isolated in stored tiger nuts by Adebajo (1993).…”

Section: Introductionmentioning

confidence: 99%

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Physicochemical, functional and sensory attributes of milk prepared from irradiated tiger nut (Cyperus esculentus L.)

Okyere

Odamtten

2014

Journal of Radiation Research and Applied Sciences

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Available online xxx Keywords:Tiger nut cultivar Viscosity Total solids Sensory quality a b s t r a c t Five tiger nut (Cyperus esculentus L.) cultivars were collected from four different regions of Ghana and irradiated. The aim of this study was to evaluate some physicochemical, functional and sensory qualities of milk produced from irradiated tiger nut samples.Analysis was carried out for pH, total solids, moisture, sugar brix and viscosity. Finally the consumer acceptability of the milk prepared from the nuts was determined by a taste panel using the parameters of colour, taste, aroma, mouth feel and overall acceptability. The sugar content varied from 6.0 ± 0.3% (Techiman) to 15.00 ± 1.00% (Asebu Ekroful) depending on the irradiation dose applied. Generally, increase in dose increased the sugar availability but decreased viscosity of the milk prepared from the nuts. The milk with the highest viscosity was from Kwahu Aduamoa and Techiman with the least viscosity from Bawjiase.Generally, no significant difference was detected by the sensory panellists with regard to mouth feel and taste among the milk samples prepared from the various tiger nut cultivars.

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Section: Viscosity (Centipoises Cp) Of Milk Prepared From Unirradiatementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physicochemical, functional and sensory attributes of milk prepared from irradiated tiger nut (Cyperus esculentus L.)

Okyere

Odamtten

2014

Journal of Radiation Research and Applied Sciences

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“…This variety also yields more milk and contains lower fat and higher protein (Okafor et al, 2003;Abano and Amoah, 2011;Bamishaiye and Bamishaiye, 2011). Tetteh and Ofori (1998) identified four different subtypes of the Kwahu-type tiger nut according to their shape and size. Type 1 has small, round nuts; type 2 has fairly large, round nuts; type 3 has large but elongated nuts; and type 4 has long, slender nuts, which may be straight or sickle-shaped.…”

Section: Introductionmentioning

confidence: 99%

Selected engineering properties of tiger nut as a function of moisture content and variety

Ince¹,

Vursavuş²,

Vurarak³

et al. 2017

Turk J Agric For

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Some physical and mechanical properties of two tiger nut varieties (Sarışeker and Balyumru) were determined at four moisture contents. Physical properties including length, width, thickness, geometric mean diameter, mass, 1000-tuber mass, bulk density, tuber density, surface area, terminal velocity, angle of repose, porosity, and friction coefficient were affected by moisture content at a 1% probability level, excluding sphericity. All parameters decreased with a decrease in moisture content except tuber density, porosity, and firmness. Variety only had a statistically significant effect on width, geometric mean diameter surface area, and terminal velocity at different probability levels. Force, deformation, firmness, energy absorbed, and power requirement, which were investigated as mechanical properties, were also affected by moisture content at a 1% probability level. It was also found that the variety and loading position had no significant effect on firmness and energy absorbed, respectively. Varieties showed differences in terms of 1000-tuber mass, sphericity, terminal velocity and angle of repose, length, geometric mean diameter, surface area, porosity, force, and energy absorbed at different probability levels.

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“…In 2010 Ghana exported 63,462 tonnes of tigernut valued at US$ 25,130.82 to countries such as England, Japan and America (GEPC, 2010). Its cultivation also provides jobs to about 85% of the youth and women in the major growing areas of Ghana (Tetteh and Ofori, 1998). In spite of the nutritional, medicinal and economic value of tigernut, the crop still remains an orphan.…”

Section: Introductionmentioning

confidence: 99%

Germplasm collection and morphological characterization of local accessions of tigernut (Cyperus esculentus L.) in Ghana for conservation and utilization

Donkor¹,

Nyadanu²,

Dapaah³

2019

J. Plant Breed. Crop Sci.

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Tigernut (Cyperus esculentus L.) is a nutritious crop of the sedge family. In Ghana available local accessions have not been collected and characterized for conservation and utilization purposes. The objective of this study was to collect, conserve and characterize twenty-four local accessions of tigernut in Ghana based on agro-morphological traits. The ANOVA revealed significant (p<0.05) differences among the accessions for all the traits studied except for hundred nut weight, indicating the presence of sufficient variability among the accessions. The hierarchical cluster analysis put the accessions into six major groups confirming a wide range of diversity among the accessions. The biplot of the principal components analysis revealed the scattering of the accessions in all the quarters which further suggest a higher level of variability among the accessions studied. The PCA also revealed that the first five PC accounted for a total of 88.4% variability among the accessions. PC1 accounted for 45.6% of the total variation with an Eigenvalue of 6.84. The correlation analysis among the traits showed significant and positive correlation between number of nuts and good nuts (r=0.94) and detached nuts and attached nuts. However, there was significant negative correlation among nut width and detached nuts (r =-0.88) and harvest index and biological yields (r =-0.77). Based on the study, accessions TPY, CCB, BB, DY, ADL, KB, KAY, WY1 and BKB which recorded high values for number of nuts, good nuts, nut length, nut width and harvest index could be included in breeding programs for varietal development of tigernut in Ghana.

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A baseline survey of tiger nut (<i>Cyperus esculentus</i>) production in the Kwahu South District of Ghana

Cited by 17 publications

References 0 publications

Physicochemical, functional and sensory attributes of milk prepared from irradiated tiger nut (Cyperus esculentus L.)

Physicochemical, functional and sensory attributes of milk prepared from irradiated tiger nut (Cyperus esculentus L.)

Selected engineering properties of tiger nut as a function of moisture content and variety

Germplasm collection and morphological characterization of local accessions of tigernut (Cyperus esculentus L.) in Ghana for conservation and utilization

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