scholarly journals Daily consumption of orange‐fleshed sweet potato increased plasma beta‐carotene concentration but did not increase total body vitamin A pool size in Bangladeshi women

2012 ◽  
Vol 26 (S1) ◽  
Author(s):  
Marjorie J Haskell ◽  
Kazi M Jamil ◽  
Maleka Jamil ◽  
Janet M Peerson ◽  
Alison H Keenan ◽  
...  
Keyword(s):  
Vitamin A ◽  
Sweet Potato ◽  
Beta Carotene ◽  
Pool Size ◽  
Daily Consumption ◽  
Total Body ◽  
Orange Fleshed Sweet Potato

scholarly journals Daily Consumption of Orange-Fleshed Sweet Potato for 60 Days Increased Plasma β-Carotene Concentration but Did Not Increase Total Body Vitamin A Pool Size in Bangladeshi Women

2012 ◽  
Vol 142 (10) ◽  
pp. 1896-1902 ◽  
Author(s):  
Kazi M. Jamil ◽  
Kenneth H. Brown ◽  
Maleka Jamil ◽  
Janet M. Peerson ◽  
Alison H. Keenan ◽  
...  
Keyword(s):  
Vitamin A ◽  
Sweet Potato ◽  
Pool Size ◽  
Daily Consumption ◽  
Total Body ◽  
Orange Fleshed Sweet Potato ◽  
Β Carotene

Research Recommendations for Applying Vitamin A-Labelled Isotope Dilution Techniques to Improve Human Vitamin A Nutrition

2014 ◽  
Vol 84 (Supplement 1) ◽  
pp. 52-59 ◽  
Author(s):  
Sherry A. Tanumihardjo ◽  
Anura V. Kurpad ◽  
Janet R. Hunt
Keyword(s):  
Public Health ◽  
Vitamin A ◽  
Vitamin A Deficiency ◽  
Human Subjects ◽  
The Body ◽  
Pool Size ◽  
Serum Retinol ◽  
Vitamin A Status ◽  
Status Assessment ◽  
Total Body

The current use of serum retinol concentrations as a measurement of subclinical vitamin A deficiency is unsatisfactory for many reasons. The best technique available for vitamin A status assessment in humans is the measurement of total body pool size. Pool size is measured by the administration of retinol labelled with stable isotopes of carbon or hydrogen that are safe for human subjects, with subsequent measurement of the dilution of the labelled retinol within the body pool. However, the isotope techniques are time-consuming, technically challenging, and relatively expensive. There is also a need to assess different types of tracers and doses, and to establish clear guidelines for the use and interpretation of this method in different populations. Field-friendly improvements are desirable to encourage the application of this technique in developing countries where the need is greatest for monitoring the risk of vitamin A deficiency, the effectiveness of public health interventions, and the potential of hypervitaminosis due to combined supplement and fortification programs. These techniques should be applied to validate other less technical methods of assessing vitamin A deficiency. Another area of public health relevance for this technique is to understand the bioconversion of β-carotene to vitamin A, and its relation to existing vitamin A status, for future dietary diversification programs.

scholarly journals β-Carotene–rich orange-fleshed sweet potato improves the vitamin A status of primary school children assessed with the modified-relative-dose-response test

2005 ◽  
Vol 81 (5) ◽  
pp. 1080-1087 ◽  
Author(s):  
Paul J van Jaarsveld ◽  
Mieke Faber ◽  
Sherry A Tanumihardjo ◽  
Penelope Nestel ◽  
Carl J Lombard ◽  
...  
Keyword(s):  
Vitamin A ◽  
Primary School ◽  
Sweet Potato ◽  
School Children ◽  
Dose Response ◽  
Primary School Children ◽  
Response Test ◽  
Vitamin A Status ◽  
Orange Fleshed Sweet Potato ◽  
Β Carotene

scholarly journals Factors affecting farmers’ willingness and ability to adopt and retain vitamin A-rich varieties of orange-fleshed sweet potato in Mozambique

Food Security ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 1501-1519 ◽  
Author(s):  
Mica Jenkins ◽  
Carmen Byker Shanks ◽  
Roland Brouwer ◽  
Bailey Houghtaling
Keyword(s):  
Vitamin A ◽  
Sweet Potato ◽  
Factors Affecting ◽  
Orange Fleshed Sweet Potato

scholarly journals Diallel Analysis of Sweet Potato [Ipomoea batatas (L.) Lam] Genotypes for Combined Beta Carotene and Dry Matter Content in Southern Guinea Savanna, Nigeria

2019 ◽  
pp. 1-9
Author(s):  
M. S. Afolabi ◽  
O. B. Bello ◽  
G. O. Agbowuro ◽  
C. O. Aremu ◽  
M. O. Akoroda
Keyword(s):  
Vitamin A ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Dry Matter ◽  
Vitamin A Deficiency ◽  
Beta Carotene ◽  
Matter Content ◽  
Quality Trait ◽  
Dry Matter Content ◽  
Β Carotene

Roots of orange-fleshed sweet potato varieties currently available in Nigeria contain high quantities of β-carotene or pro-vitamin A but have high moisture content. These varieties have been found to be a cheap and crucially important remedy for vitamin A deficiency. The cream or white-fleshed varieties, on the other hand, have a sweet taste with high dry matter content, giving a dry texture, a quality trait preferred in Nigeria. Development of sweet potato genotypes that can combine these two important quality traits is the objective of this breeding work. A diallel experiment using six parental sweet potato genotypes crossed in all possible combinations were carried out and thirty progenies were evaluated for beta carotene (β-carotene) and dry matter content in Landmark University, Omu Aran, Kwara State, Nigeria. The 30 F1 progenies along with their parental lines were planted in the same field trial. The trial was laid out in 6 x 6 triple lattice in two replications. Highly significant (P≤ 0.01) differences were observed among the genotypes for the traits. The average β-carotene content among the progenies was 2.86 (mg/100g.f.w) while the dry matter cttgontent had a mean value of 31.89%. The cross progenies 199024.2 x Excel had the highest beta carotene (14.37mg/100g.f.w) content with the highest dry matter content (40.10%) and are therefore recommended for further evaluation.

scholarly journals Nutritional Properties of Orange-Fleshed Sweet Potato Juice

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Nurul Ainina Zulkifli ◽  
Nurhanisah Mohammed Salleh ◽  
Mohd Zuhair Mohd Nor ◽  
Farah Nadia Omar ◽  
Alifdalino Sulaiman ◽  
...  
Keyword(s):  
Amino Acids ◽  
Sweet Potato ◽  
Orange Juice ◽  
Beta Carotene ◽  
Nutritional Composition ◽  
Free Radical Scavengers ◽  
Radical Scavengers ◽  
Nutritional Properties ◽  
A Value ◽  
Orange Fleshed Sweet Potato

Orange-fleshed sweet potato (OFSP) offers many health benefits and can be processed into different food forms including as a healthy drinking juice. However, the OFSP juice requires exploration on the juice properties, especially its nutritional elements before it can be marketed as a healthy drink. Hence, this study aimed to address the detailed nutritional composition of the OFSP juice via analyses of proximate compositions, amino acids, mineral, carotenoids, and vitamins. Findings showed OFSP juice is proven to be high in beta-carotene with a value of 4916.06 μg/L which was almost 100 times the value of beta-carotene in orange juice, and also rich in vitamins, certain amino acids and minerals. Since these phytochemicals can aid in the reduction of anti-mutagenic, immune-enhancers, cancer, and free radical scavengers, this study has proven the potential of OFSP to be processed into a healthy juice based on its nutritional properties.

Estimated level of daily vitamin A intake required to maintain a constant total body vitamin A pool size in adult males with either small or large initial total body vitamin A pool sizes

2007 ◽  
Vol 21 (5) ◽  
Author(s):  
Marjorie J Haskell ◽  
Kazi M Jamil ◽  
Narayan Kumar Das ◽  
Janet M Peerson ◽  
MA Wahed ◽  
...  
Keyword(s):  
Vitamin A ◽  
Pool Size ◽  
Adult Males ◽  
Daily Vitamin ◽  
Total Body ◽  
Pool Sizes

Combining Ability of Sweet Potato [Ipomoea batatas (L.) Lam] Genotypes for Beta Carotene and Dry Matter Content in Southern Guinea Savanna, Nigeria

2021 ◽  
Vol 19 (1) ◽  
pp. 53-61
Author(s):  
M.S Afolabi ◽  
G.O Agbowuro ◽  
A.E Salami ◽  
M.O Akoroda
Keyword(s):  
Vitamin A ◽  
Sweet Potato ◽  
Dry Matter ◽  
Beta Carotene ◽  
Diallel Analysis ◽  
Matter Content ◽  
Dry Matter Content ◽  
Carotene Content ◽  
Guinea Savanna ◽  
Β Carotene

Roots of orange fleshed sweet potato varieties currently available in Nigeria contain high quantities of β-carotene or pro-vitamin A but have high moisture content. These varieties have been found to be a cheap and important remedy for vitamin A deficiency. The cream or white fleshed varieties on the other hand, have sweet taste with high dry matter content, giving a dry texture, a quality trait preferred in Nigeria. The objectives of this study were to examine the quantitative inheritance of important traits in sweet potato by means of a diallel analysis with a view to estimating the GCA and SCA components of genetic variance, and to determine the associated type of gene action controlling β-carotene content and root dry mass. A diallel crosses experiment using six parental sweet potato genotypes crossed in all possible combinations were carried out. Resultant thirty progenies were evaluated for beta carotene (β-carotene) and dry matter content in Landmark University, Omu Aran, Kwara State, Nigeria during the cropping season of 2012 and 2013. The 30 F1 progenies along with their parental lines were planted in the same field trial. The trial was laid out in 6 x 6 triple lattice in two replications. Highly significant (P≤ 0.01) differences were observed among the genotypes for all the tested traits. The average β-carotene content for the progenies was 2.86 (mg/100 g f.w.) while the dry matter content was 31.89%. The cross combination 199024.2 x Excel recorded the highest beta carotene (14.37 mg/100 g f.w) and dry matter content (40.10%), this candidate is therefore suggested for further evaluation. Key words: Diallel analysis, Dry matter, Southern Guinea Savanna, Sweet potato, Vitamin A, β-carotene.

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