β-Carotene from rice for human nutrition?
نویسندگان
چکیده
منابع مشابه
β-Carotene in Golden Rice is as good as β-carotene in oil at providing vitamin A to children.
BACKGROUND Golden Rice (GR) has been genetically engineered to be rich in β-carotene for use as a source of vitamin A. OBJECTIVE The objective was to compare the vitamin A value of β-carotene in GR and in spinach with that of pure β-carotene in oil when consumed by children. DESIGN Children (n = 68; age 6-8 y) were randomly assigned to consume GR or spinach (both grown in a nutrient solutio...
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Obtaining transgenic crop lines with stable levels of carotenoids is highly desirable. We addressed this issue by employing the anther culture technique to develop dihaploid lines containing genes involved in β-carotene metabolism. First, we used Agrobacterium- mediated transformation to develop primary transgenic plants containing the β-carotene biosynthetic genes, phytoene synthase (psy) and ...
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Protection against skin damage from sunlight by nutritional means has been examined. Likewise, there has been work on the topical application of phytochemicals to the skin. This review focuses on the nutritional aspect of phytochemicals in humans-ie, the provision of carotenoid micronutrients by dietary means to the skin and their role in protection. Human intervention studies have documented p...
متن کاملCharacterization of human β,β-carotene-15,15'-monooxygenase (BCMO1) as a soluble monomeric enzyme.
The formal first step in in vitamin A metabolism is the conversion of its natural precursor β,β-carotene (C40) to retinaldehyde (C20). This reaction is catalyzed by the enzyme β,β-carotene-15,15'-monooxygenase (BCMO1). BCMO1 has been cloned from several vertebrate species, including humans. However, knowledge about this protein's enzymatic and structural properties is scant. Here we expressed h...
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ژورنال
عنوان ژورنال: The American Journal of Clinical Nutrition
سال: 2009
ISSN: 0002-9165,1938-3207
DOI: 10.3945/ajcn.2009.28142