Effect of Harvest Period on Starch Yield and Dry Matter Content from the Tuberous 
 Roots of Improved Cassava (Manihot esculenta Crantz) Varieties

Ebah-Djedji, B. C.; Djè, Kouakou Martin; N’zué, Boni; Zohouri, G. P.; Amani, N’Guessan Georges

doi:10.3923/pjn.2012.414.418

Cited by 11 publications

(12 citation statements)

References 3 publications

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“…Generally, there were significant (P≤0.05) differences between the differently treated roots. The initial dry matter content of the fresh cassava root was recorded as 56.1%, similar to the range of 10%-57% reported by Ebah-Djedji et al [19]. They also stated that the dry matter content of cassava differs based on genotype and age at harvest.…”

Section: Resultssupporting

confidence: 85%

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Influence of Coating Application Methods on the Postharvest Quality of Cassava

Atieno

Owino

Ateka

et al. 2019

International Journal of Food Science

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Various modes of edible coating application vary in their coat dispersion and film formation, hence the need to determine the most effective mode of application for cassava. Edible surface coatings have been found to be effective in preserving the quality of various food products. However, there are variations in effectiveness among the different coating solutions, hence the need for optimization of the concentrations of the gums used. This study aimed at determining the most efficient coating application method on the cassava postharvest quality. Physiologically mature cassava (variety KME 1) was harvested and divided into seven portions. The various portions were coated using 1.5% xanthan gum, 1.5% xanthan/guar gum, and 2% xanthan/guar gum by both dipping and spraying method. There was no significant difference on the colour, total cyanide, ethylene production, and total phenolic content between the two application methods. The 2% xanthan/guar gum coating showed a significant difference on the dry matter content while the 1.5% xanthan gum coating had a significant difference on the respiration rate and weight loss. The 1.5 xanthan treated roots had a final dry matter content of 72.5% for the sprayed samples and 75.98% for the dipped sample while the 2% xanthan/guar gum treated roots had a final dry matter content of 64.6% and 74.1% for the dipped and sprayed root samples, respectively. The 1.5% xanthan and 2% xanthan/guar gum treated roots showed no significant difference in their action on dry matter content. The 1.5% xanthan/guar dipped and sprayed samples differed significantly on their effect on flesh firmness with final values of 35.4N and 46.1N, respectively, at 20 days after harvest. This study suggested that based on the coating solution and the parameters being observed, there generally was no varying effect of dipping and spraying methods of coating application. The choice of the efficient mode of application to use will depend on other factors such as the easiness of application.

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Section: Resultssupporting

confidence: 85%

“…This was determined according to Ebah-Djedji et al [19]. 20 g of the chopped and ground roots was oven-dried at 105°C for 24 hours.…”

Section: Methodsmentioning

confidence: 99%

Influence of Coating Application Methods on the Postharvest Quality of Cassava

Atieno

Owino

Ateka

et al. 2019

International Journal of Food Science

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“…As a polygenic trait, dry matter varies from one genotype to another (20–40%) and is usually stable across locations 41 . Genotypes with high dry matter (> 30%) are generally mealy with high starch content 42 – 44 , making them suitable for processing into flour and starch which have been shown to improve the potential for cassava adoption and commercialization for income generation and livelihoods improvement 15 , 45 .…”

Section: Discussionmentioning

confidence: 99%

New cassava germplasm for food and nutritional security in Central Africa

Tize

Fotso

Nukenine

et al. 2021

Sci Rep

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Cassava is a key food security crop in Central Africa, but its production depends largely on the use of local farmers’ varieties characterized by inherently low yield which is compounded by generally high susceptibility to various growth and yield-limiting pests and diseases. Improved cassava genotypes have demonstrated the potential to substantially improve cassava’s contribution to food security and the development of the cassava industry and the improvement of nutrition status elsewhere in Western Africa. Eleven improved cassava genotypes were compared with a local landrace (LMR) used as a check under field conditions over two years in eight locations, grouped in four agro-ecologies in Cameroon. Pest and disease abundance/incidence and damage severity were evaluated. At harvest, root yield and carotenoid content were measured. Best linear unbiased predictors showed the lowest breeding value for LMR with the cassava mosaic virus disease (+ 66.40 ± 2.42) compared with 1.00 ± 0.02% for the most susceptible improved genotype. Two genotypes (I010040-27 and I011797) stood out for having higher predicted fresh root yield means which were at least 16 times greater compared with LMR. Predicted total carotenoid content was the highest (+ 5.04 ± 0.17) for improved genotype I070593 compared with LMR which showed the lowest (− 3.90 ± 0.06%) and could contribute to the alleviation of vitamin A deficiency from cassava-based food systems. Diffusion of high-yielding and nutritious genotypes could alleviate food and nutritional security in Central Africa.

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“…Although the tuber yield recorded for the three ages were similar but dropped at 18 MAP evidently due to rot damage. Ebah-Djedji et al (2012) reported decline in cassava tuber at 17 months old, however, the decline was not linked to root rot. Hammer et al (1987) reported that root rot occurred in the second year but was not specific on the number of months.…”

Section: Influence Of Intercropping On the Ler And Tuber Fresh Mass Omentioning

confidence: 93%

“…Sagrilo et al (2006) quoted Sagrilo et al (2002) that cassava harvested at 21 months could improve storage root yield compared to 12 months. Ebah-Djedji et al(2012) who harvested cassava sequentially at 11, 13, 15 and 17 months after planting in Cote d' Ivoire recommended that tuberous root of improved cassava varieties should be harvested at 13 MAP to obtain optimum dry matter content.…”

Section: Introductionmentioning

confidence: 99%

Effect of cropping system and age of plant at harvest on tuber rot and performance of elite cassava varieties in derived savannah

Odedina

Adigbo

Kulako³

et al. 2017

AAS

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Devastated tuber rot disease among farmers prompted the evaluation of the elite improved varieties in the intercrop and the practice of delaying harvesting when there is glut in the market necessitated this study. Trial was carried out at the Federal University of Agriculture, Abeokuta between 2011 and 2014 to evaluate yield performance of 21 elite cassava varieties planted as sole crop verse intercropped and harvested at different age. The 2 x 21 x 3 factorial experiment was laid out in randomized complete block design and replicated three times. The tuber yield obtained from sole plot in 2011/2012 cropping season was significantly higher than intercrop whereas those of 2012/2014 cropping season were similar. Land Equivalent Ratio was above one in both cropping seasons indicating that the performance of the improved varieties in intercrop was efficient. The pooled mean tuber yield showed that TMS 30572, 92/0326, 95/0211, 01/1371, 00/0338, 01/0046, 00/0098, 01/1097, 01/0085, 98/0581 and 98/510 were among the top eight varieties. Harvesting could be delayed up to 15 months after planting to reduce tuber rot.

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Effect of Harvest Period on Starch Yield and Dry Matter Content from the Tuberous Roots of Improved Cassava (Manihot esculenta Crantz) Varieties

Cited by 11 publications

References 3 publications

Influence of Coating Application Methods on the Postharvest Quality of Cassava

Influence of Coating Application Methods on the Postharvest Quality of Cassava

New cassava germplasm for food and nutritional security in Central Africa

Effect of cropping system and age of plant at harvest on tuber rot and performance of elite cassava varieties in derived savannah

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