Total amino acids and fatty acids composition of yam (<i>Dioscorea</i>) tubers and their evolution during storage

Kouassi, Bohoussou; Diopoh, Jacques; Leroy, Y.; Fournet, Bernard

doi:10.1002/jsfa.2740420310

Cited by 10 publications

(1 citation statement)

References 22 publications

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“…The modified QuEChERS method, based on the procedure by the Association of Analytical Communities official method 2007.01 (Koesukwiwat et al 2014;Mekonen et al 2014;Neil et al 2007) but without the cleanup phase was adopted for the extraction of the spiked samples and blank samples of yam. The cleanup phase was skipped because the yam tuber is a relatively clean product with low fat and pigment content (Udensi 2008;Kouassi et al 1988;Muzac-Tucker et al 1993;USDA, 2017). The QuEChERS method is found to give high-quality results for many pesticides (Wilkowska and Biziuk 2011).…”

Section: Quechers Methods and Analyses Of Recovery And Samplesmentioning

confidence: 99%

Pesticides residue analysis in yam from selected markets across Ghana and Belgium: an evaluation of the QUECHERS method

et al. 2018

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Background: In recent years, concerns have been raised in Ghana regarding the use of pesticides in yamproduction to the extent that it is feared that pesticides residues may be found in the yam tuber which isconsumed by many Ghanaians. This present study, therefore, was designed to assess the level of pesticides residues in yam bought from across Ghanaian markets i.e. production for local consumption and from Belgium grocery shops (export production from Ghana) using the Quick, Easy, Cheap, Efficient, Rugged and Safe (QuEChERS) method coupled with LC-MS/MS. A total of 180 yam samples, including 150 from Ghana and 30 from Belgium were collected and pesticides residues were analyzed using a multi-residue method. Results: A total of 25 pesticides were screened in the yam samples and 11 of them were detected. Theresults indicated that about 46% of the samples contained one or more of the 11 detected pesticides in arange of 0. 000014 mg/kg up to 0.0146 mg/kg. The three most detected pesticides in this study were fenpropimorph, cadusafos and fenitrothion, occurring in 179, 171 and 126 samples respectively. All the detected pesticides were below their respective EU maximum residue limits (MRL). Conclusion: By these results, it can be said that, the residues of the monitored pesticides found in yam arevery low and are unlikely to pose a negative human health effect.

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Section: Quechers Methods and Analyses Of Recovery And Samplesmentioning

confidence: 99%

Pesticides residue analysis in yam from selected markets across Ghana and Belgium: an evaluation of the QUECHERS method

et al. 2018

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Evaluation of the chemical composition of fresh and stored edible aroids

Agbor-Egbe

Rickard

1990

J Sci Food Agric

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The chemical compositions of 32 cultivars of two edible aroid species (Colocasia esculenta oar antiquorum and Xanthosoma sagittifolium) were determined. Mean values obtained for both species ing kg-' dry weight were: crude protein 375-736, total fat 0.9-8-7, ash 28.7-77.7, crude j b r e 4.3-42.0, total sugars 5-9-42.5 and starch 509.1-705-7. The main sugars ident$ed by HPLC were fiuctose, glucose, sucrose and maltose. The amino acids with the highest concentrations were aspartic acid, glutamic acid and arginine. A significant reduction in starch content (to 39.847.4 g kg-') and increase in total sugars content (to 8.0-11.6 g kg-') occurred during the storage of cormels for two weeks under tropical ambient conditions (24-29°C; 86-98 % R H ) . No signijicant differences (P 30.05) between fiesh and stored cormels were found in crude protein and amino acid contents.

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Protein intake adequacy among Nigerian infants, children, adolescents and women and protein quality of commonly consumed foods

Have

Owolabi²,

Steijns

et al. 2020

Nutr. Res. Rev.

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Protein is important for growth, maintenance and protection of the body. Both adequacy of protein quantity and protein quality in the diet are important to guarantee obtaining all the essential amino acids. Protein-energy malnutrition is widely present in developing countries such as Nigeria and might result in stunting and wasting. Needs for protein differ depending on age and physiological status and are higher during growth, pregnancy and lactation. The present review assessed protein quantity and quality in diets of Nigerian infants, children, adolescents, and pregnant and lactating women. Literature reviews and calculations were performed to assess adequacy of Nigerian protein intake and to examine the Nigerian diet. The digestible indispensable amino acid score was used to calculate protein quality of nine Nigerian staple foods and of a mixture of foods. The Nigerian population had mostly adequate protein intake when compared with the most recent protein recommendations by the FAO (2013) and WHO/FAO/UNU (2007). An important exception was the protein intake of adolescent girls and pregnant and lactating women. Most of the assessed Nigerian plant-based staple foods were of low protein quality and predominantly lacked the amino acid lysine. The addition of animal-source foods can bridge the protein quality gap created by predominance of plant-based foods in the Nigerian diet. The methodology of this review can be applied to other low-and middle-income countries where diets are often plant-based and lack variety, which might influence protein intake adequacy.Abbreviations: AAA, aromatic amino acids; DIAAS, digestible indispensable amino acid score; EAR, estimated average requirement; LOS, level of satisfaction; PDCAAS, protein digestibility-corrected amino acid score; PEM, protein-energy malnutrition; RDA, recommended daily allowance; SAA, sulfur amino acid.

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Total amino acids and fatty acids composition of yam (Dioscorea) tubers and their evolution during storage

Cited by 10 publications

References 22 publications

Pesticides residue analysis in yam from selected markets across Ghana and Belgium: an evaluation of the QUECHERS method

Pesticides residue analysis in yam from selected markets across Ghana and Belgium: an evaluation of the QUECHERS method

Evaluation of the chemical composition of fresh and stored edible aroids

Protein intake adequacy among Nigerian infants, children, adolescents and women and protein quality of commonly consumed foods

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