A deficiência de vitamina A no Brasil: um panorama

Souza, Wesley Angelino de; Boas, Olinda Maria Gomes da Costa Vilas

doi:10.1590/s1020-49892002000900005

Cited by 28 publications

(23 citation statements)

References 26 publications

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“…18 Analyzing the water-infection variable, the importance of contributing factors to the occurrence of VAD can be observed, such as the high prevalence of infections, lack of sanitation and drinking water, as well as adverse socioeconomic conditions and taboos related to food of plant origin which increase the demand or interfere in the organism's intake and metabolizing of Vitamin A. 13 The results of this study show that, in spite of actions to prevent and control VAD on the part of the state of Paraíba, it is still a serious public health problem, demanding specialist attention from the government organizations which deal the population's health and nutrition.…”

Section: Discussionmentioning

confidence: 99%

Deficiencia de vitamina A e fatores associados em criancas de areas urbanas

et al. 2013

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OBJECTIVE:To estimate the prevalence of vitamin A defi ciency and its associated factors in children. METHODS:A cross-sectional population-based study, involving 1,211 children of both sexes, aged between six and 59 months old, was carried out in the urban zone of 9 cities in the state of Paraiba, Northeastern Brazil. Vitamin A status was assessed by serum retinol levels (high performance liquid chromatography -HPLC) and subclinical infection was assessed by C-reactive protein concentrations. Socioeconomic, demographic and sanitation conditions, as well as vitamin A supplement intake, were also evaluated. Children with serum retinol concentrations RESULTS:The prevalence of vitamin A deficiency was 21.8% (95%CI 19.6;24.2), showing an association with subclinical infection and lack of indoor plumbing. The prevalence of vitamin A defi ciency was 21.8% (95%CI 19.6;24.2). After adjustment, vitamin A defi ciency was found to be linked with subclinical infection and lack of indoor plumbing. Vitamin A defi ciency was four times higher (CI95% 1.49;10.16) in children with subclinical infection whose homes were without indoor plumbing, compared to children who were not infected and with indoor plumbing in their homes. CONCLUSIONS:Despite activities aimed at the prevention and control of vitamin A defi ciency, hypovitaminosis A, remains a public health concern among children under fi ve.

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Section: Discussionmentioning

confidence: 99%

Deficiencia de vitamina A e fatores associados em criancas de areas urbanas

et al. 2013

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“…Além disso, a suplementação de vitamina A também pode se dar pela inserção de vegetais na dieta, sendo a cenoura, a abóbora e o espinafre, exemplos de fontes abundantes em carotenoides precursores de vitamina A. 25 Nem todos os carotenoides apresentam atividade pró-vitamina A. Para que o carotenoide apresente esta atividade, a molécula deve conter, no mínimo, 11 a o os, pelo e os u a el β ão substituído, e duplas ligações conjugadas, o o é o aso das olé ulas de β-caroteno, γ-a ote o, α-a ote o, β-iptoxa ti a e α-criptoxa ti a. De t e os a ote oides, o β-caroteno é o de maior destaque por ser o único capaz de gerar duas moléculas de retinol quando ingerido.…”

Section: Atividade Pró-vitamina Aunclassified

Carotenoids: Properties, Applications and Market

Mesquita¹,

Teixeira²,

Sérvulo³

2017

Rev. Virtual Quim.

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Abstract:The increase of natural products demand has motivated the replacement of artificial colorants for natural ones, because, according to some researches, the consumption of artificial pigments can cause health damage. Carotenoids are natural lipophilic pigments, which can present the colors yellow, orange or red. They are widely distributed in nature in algae, plants, crustaceans, fishes, birds and microorganisms. These colorants can be applied in several kinds of industries, not only with the purpose of coloring, but also to enrich foods and even as food supplement components, animal feed, pharmaceuticals and cosmetics. In face of the carotenoid demand, it is estimated that the world market will move substantial amounts of money in the coming years. Considering this fact, in the Brazilian scenario, there can be an increase in imports, while the exports may remain as the last six years, with small changes, since in Brazil there are no investments on technology development for carotenoid production.Keywords: Natural colorants; carotenoids; carotenoids properties; carotenoids applications; carotenoids market. ResumoA crescente busca por produtos naturais tem motivado a substituição de corantes artificiais por naturais, pois segundo alguns estudos, o consumo de corantes artificiais pode causar danos à saúde. Os carotenoides são corantes naturais, lipofílicos, com coloração amarela, laranja ou vermelha e se encontram amplamente distribuídos na natureza em algas, plantas, crustáceos, peixes, aves e microorganismos. Esses pigmentos podem ser aplicados em diversas indústrias, não somente com a finalidade de colorir, como também para enriquecer alimentos e até mesmo compor suplementos alimentares, rações, fármacos e cosméticos. Diante do aumento da demanda por carotenoides, estima-se que o mercado mundial movimentará vultosas quantias nos próximos anos. Considerando este fato, no cenário nacional, pode haver a elevação das importações, enquanto as exportações poderão se manter como nos últimos seis anos, com valores irrisórios, uma vez que são escassos os investimentos no desenvolvimento tecnológico de produção de carotenoides no Brasil.

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“…This variation is an important resource for breeding programs, particularly in conventional breeding Souza and Boas, 2002).…”

Section: Vegetables Fount Of Pro Vitamin a Carotenoidsmentioning

confidence: 99%

Vegetable breeding as a strategy of biofortification in carotenoids and prevention of vitamin A deficiency

Ronaldo¹,

Ronaldo²,

Cleverson³

et al. 2017

Afr. J. Agric. Res.

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Carotenoids are a class of yellow-orange-red pigments distributed in various fruits, spices, herbs and especially in vegetables. These pigments are bioactive components essential to human health. Among the numerous classes of carotenoids, a smaller number is known for having provitamin A activity. This vitamin is essential to the organism in the proper functioning of the vision and the immune system. On the other hand, the deficiency in this vitamin is related to a great number of diseases, which can in severe cases, lead to death. This makes essential the proper supplying of this vitamin to human nutrition. There are two sources from which vitamin A can be derived: (a) vitamin A preformed with retinol esters from animal food sources and (b) from carotenoid found in plant foods. Thus, food fortification is presented as an alternative to reduce vitamin A deficiency. Currently, plant breeding has contributed to the development and introduction of biofortified products. Improved varieties obtained from biofortification have a higher content of nutrients and vitamins, leading to the improvement of human diet. The genetic breeding of vegetables aiming nutritional biofortification is a promising strategy for the increasing of carotenoid concentration in agricultural products and prevention of vitamin A deficiency. Besides the crops that have commonly been used in the biofortification programs, a series of horticulture crops are also promising for insertion in the programs of biofortification in pro vitamin A. Thus, the objective of this review is addressing the problems resulting from vitamin A deficiency and the adoption potential of horticulture species by genetic breeding programs aiming the biofortification in carotenoids.

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A deficiência de vitamina A no Brasil: um panorama

Cited by 28 publications

References 26 publications

Deficiencia de vitamina A e fatores associados em criancas de areas urbanas

Deficiencia de vitamina A e fatores associados em criancas de areas urbanas

Carotenoids: Properties, Applications and Market

Vegetable breeding as a strategy of biofortification in carotenoids and prevention of vitamin A deficiency

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