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The starchy staples of cassava (tuberous roots) provides more than half the calories consumed by more than 200 million people in sub-Saharan Africa, and the leaves are often used as a vegetable providing protein, vitamins and minerals. The cyanogenic potential of cassava has often been cited as a...


Dixon, A.Asiedu, RobertBokanga, M.[Breeding of cassava for low cyanogenic potential: problems, progress and prospects]Breeding of cassava for low cyanogenic potential: problems, progress and prospects
Autor: Bokanga, M.

Cassava is a cyanogenic plant which accumulates linamarin and lotaustralin in its tissues. The ability of damaged tissues to release hydrogen cyanide from linamarin and lotaustralin is at the origin of cassava's cyanogenic potential. The cyanogenic potential of a large number of cassava varieties...


Bokanga, M.[Distribution of cyanogenic potential in the cassava germplasm]Distribution of cyanogenic potential in the cassava germplasm

The bread making potential of cassava flour (in cassava flour/defatted soya flour/glyceryl monostearate recipes (80:20:3, w/w)) prepared from 10 IITA cassava genotypes harvested at the International Institute of Tropical Agriculture (IITA) at 6, 9, 12, 15 and 18 months after planting, was investi...


Defloor, I.Leijskens, R.Bokanga, M.Delcour, J.[Impact of genotype and crop age on the breadmaking and physicochemical properties of flour produced from cassava (Manihot esculenta Crantz) planted in the dry season]Impact of genotype and crop age on the breadmaking and physicochemical properties of flour produced from cassava (Manihot esculenta Crantz) planted in the dry season

The distribution of the cyanogenic potential in cassava germplasm has been found to be a continuum from very low values to high levels. Within the same genotype, the cyanogenic potential is affected by the planting season; it is low when planted at the beginning of the rainy season, and high when...


Bokanga, M.Ekanayake, I.J.Dixon, A.Porto, M.[Genotype environment interactions for cyanogenic potential in cassava]Genotype environment interactions for cyanogenic potential in cassava

Low efficiency of available screening procedures constrains breeding and selection of yams (Dioscorea spp.) towards high textural quality of food products made from their tubers. This study was undertaken to determine the potential usefulness of pasting characteristics of fresh yams as rapid indi...


Otegbayo, B.Aina, J.Asiedu, RobertBokanga, M.[Pasting characteristics of fresh yams (Dioscorea spp.) as indicators of textural quality in a major food product: pounded yam]Pasting characteristics of fresh yams (Dioscorea spp.) as indicators of textural quality in a major food product: pounded yam

Textural quality of pounded yam made from tubers of Dioscorea rotundata Poir. and Dioscorea alata L. that were freshly harvested or stored for 4 months were evaluated using texture profile analysis. Significant correlations were obtained between the values for texture attributes evaluated using s...


Otegbayo, B.Aina, J.Abbey, L.Sakyi‐Dawson, E.Bokanga, M.Asiedu, Robert[Texture profile analysis applied to pounded yam]Texture profile analysis applied to pounded yam

Yam (Dioscorea spp.) is the second most important root and tuber crop in Africa after cassava. This study was conducted to determine the relationship between physicochemical properties of yam starch (amylose and amylopectin, swelling, solubility and water binding capacity) and the textural qualit...


Otegbayo, B.Bokanga, M.Asiedu, Robert[Physicochemical properties of yam starch: effect on textural quality of yam food product (pounded yam)]Physicochemical properties of yam starch: effect on textural quality of yam food product (pounded yam)

A comparative study was conducted with four improved cowpea (2 pod bug resistant and 2 susceptible) varieties to assess the effect of autoclaving at 105 ~ under 15 psi for 30 min on their protein quality, as measured by the levels of some antinutritional factors and performance of rats fed the di...


Umoren, U.E.Tewe, O.O.Bokanga, M.Jackai, L.E.N.[Protein quality of raw and autoclaved cowpeas: Comparison between some insect resistant and susceptible varieties]Protein quality of raw and autoclaved cowpeas: Comparison between some insect resistant and susceptible varieties

Leaves of two varieties of cassava (Manihot esculenta Crantz) – TME1 (local) and TMS30572 (improved) – were subjected to African household processing (heat-treated, pounded and cooked and crushed, ground and cooked) and compared for proximate composition, minerals, vitamins and antinutritional fa...


Achidi, A.U.Ajayi, O.A.Maziya-Dixon, B.B.Bokanga, M.[The effect of processing on the nutrient content of cassava (Manihot Esculenta Crantz) leaves]The effect of processing on the nutrient content of cassava (Manihot Esculenta Crantz) leaves

Cassava roots contain cyanogenic glucosides. Malawian farmers classify cultivars into two groups based on the perceived danger of eating raw roots that they associate with bitterness. In the vernacular, cultivars that produce roots with bitter taste are called vyakubaba (bitter), whereas those yi...


Chiwona-Karltun, L.Brimer, L.Kalenga Saka, J.D.Mhone, A.R.Mkumbira, J.Johansson, L.Bokanga, M.Mahungu, N.M.Rosling, H.[Bitter taste in cassava roots correlates with cyanogenic glucoside levels]Bitter taste in cassava roots correlates with cyanogenic glucoside levels

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