provitamin a/картофель

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Determination of carotenoids in sweet potato (Ipomoea batatas L., Lam) tubers: Implications for accurate provitamin A determination in staple sturdy tuber crops.

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Vitamin A deficiency (VAD) is a global health problem, which despite significant financial investments and initiatives has not been eradicated. Biofortification of staple crops with β-carotene (provitamin A) in Low Medium Income Countries (LMICs) is the approach advocated and adopted by the WHO and

Effect of processing conditions on the content of cis/trans carotene isomers as provitamin A carotenoids in Korean sweet potato varieties.

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The present investigation intends to evaluate the changes in the content of cis/trans carotene isomers as provitamin A carotenoids by steaming and roasting processes in the roots of four Korean sweet potato varieties viz. Shinzami, Younwhangmi, Chuwhangmi and Jinhongmi using a liquid chromatography

Consumer Perceptions and Acceptability of Traditional Dishes Prepared with Provitamin A-Biofortified Maize and Sweet Potato.

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Vitamin A deficiency (VAD) is prevalent in South Africa, particularly among predominantly poor rural communities. Provitamin A (PVA)-biofortified crops could be used to address VAD; however, there are challenges of poor consumer acceptability. This study investigated the effect of replacing white

Iron Bioavailability and Provitamin A from Sweet Potato- and Cereal-Based Complementary Foods.

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Iron and vitamin A deficiencies in childhood are public health problems in the developing world. Introduction of cereal-based complementary foods, that are often poor sources of both vitamin A and bioavailable iron, increases the risk of deficiency in young children. Alternative foods with higher

Retention of provitamin a carotenoids in staple crops targeted for biofortification in Africa: cassava, maize and sweet potato.

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HarvestPlus, part of the Consultative Group on Internation Agriculture research (CGIAR) Program on Agriculture for Nutrition and Health (A4NH) uses conventional plant breeding techniques to develop staple food crops that are rich in micronutrients, a food-based approach to reduce micronutrient

Comparison of content and in vitro bioaccessibility of provitamin A carotenoids in home cooked and commercially processed orange fleshed sweet potato (Ipomea batatas Lam).

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Vitamin A deficiency (VAD) remains a public health problem in some regions of Brazil. Increased use of orange-fleshed sweet potato (OFSP) as a source of pro-vitamin A represents a potential strategy for prevention of VAD. We compared the pro-vitamin A content, vitamin A equivalency and

Modulation of carotenoid accumulation in transgenic potato by inducing chromoplast formation with enhanced sink strength.

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An increasing interest in carotenoids as nutritional sources of provitamin A and health-promoting compounds has prompted a significant effort in metabolic engineering of carotenoid content and composition in food crops. The strategy commonly used in plants is to increase the biosynthetic capacity by

In vitro bioaccessibility of beta-carotene from heat-processed orange-fleshed sweet potato.

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Orange-fleshed sweet potato (OFSP) is currently promoted in parts of sub-Saharan Africa as a biofortified staple food with large potential to provide considerable amounts of provitamin A carotenoids. However, the bioaccessibility of provitamin A carotenoids from OFSP has not been widely

Impact of natural sources rich in provitamin a on cooking characteristics, color, texture and sensory attributes of beef patties.

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Eight ground beef patty formulations, based on replacing meat with a natural source rich in provitamin A (i.e.carrot and sweet potato) were prepared. All treatments displayed better moisture retention than the controls and hence yield was improved. L, a, and b Hunter values increased and Instron

Effect of traditional processing methods on the β-carotene, ascorbic acid and trypsin inhibitor content of orange-fleshed sweet potato for production of amala in Nigeria.

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BACKGROUND The aim of the work was to study the effect of traditional processing methods on the β-carotene, ascorbic acid and trypsin inhibitor contents of orange-fleshed sweet potato amala. The most common sweet potato in Nigeria is white or yellow fleshed, which is very low in provitamin A.

Sweet potato beta-carotene bioefficacy is enhanced by dietary fat and not reduced by soluble fiber intake in Mongolian gerbils.

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Orange-fleshed sweet potato (OFSP) is an important source of beta-carotene (betaC). Provitamin A bioefficacy from plant foods is influenced by dietary fat and fiber. We fed 3% OFSP powder diets with varying amounts of fat and soluble fiber to vitamin A (VA)-depleted Mongolian gerbils (n = 85) for 3

Ensuring the supply of and creating demand for a biofortified crop with a visible trait: lessons learned from the introduction of orange-fleshed sweet potato in drought-prone areas of Mozambique.

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BACKGROUND Orange-fleshed sweet potato (OFSP) is a promising biofortified crop for sub-Saharan Africa because it has high levels of provitamin A carotenoids, the formed vitamin A is bioavailable, and white-fleshed sweet potato is already widely grown. OBJECTIVE To examine whether farmers will adopt

Quantification of Provitamin A Compounds in ChInese Vegetables by High-Performance Liquid Chromatography.

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The provitamin A contents of 16 vegetables grown in Taiwan were analyzed by high-performance liquid chromatography with photodiode-array detection. The amounts of the major provitamin A compounds, (β-cryptoxanthin, α-carotene, and β-carotene ranged from 0-6.8, 0-27.7, and 0.6-104.9 (μg/g,

Provitamin A biofortification of cassava enhances shelf life but reduces dry matter content of storage roots due to altered carbon partitioning into starch.

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Storage roots of cassava (Manihot esculenta Crantz), a major subsistence crop of sub-Saharan Africa, are calorie rich but deficient in essential micronutrients, including provitamin A β-carotene. In this study, β-carotene concentrations in cassava storage roots were enhanced by co-expression of

Maize genotype and food matrix affect the provitamin A carotenoid bioefficacy from staple and carrot-fortified feeds in Mongolian gerbils (Meriones unguiculatus).

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Biofortification to increase provitamin A carotenoids is an agronomic approach to alleviate vitamin A deficiency. Two studies compared biofortified foods using in vitro and in vivo methods. Study 1 screened maize genotypes (n = 44) using in vitro analysis, which demonstrated decreasing

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