Results 301 to 310 of about 164,447 (348)
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Formation of Carotene in vitro
Nature, 1960RESULTS presented in this communication indicate that both β-hydroxy β-methylglutarate and mevalonate may be considered precursors of carotene formation in an in vitro extract obtained from mycelial mats of the mould Phycomyces blakesleeanus. This extract, capable of synthesizing carotene, can also be used for establishing the existence of a back ...
H. Yokoyama +2 more
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Archives of Pediatrics & Adolescent Medicine, 1936
It is well known that the skin of human beings takes on a characteristic yellowish color if sufficient amounts of carotene are administered for a certain length of time. The observation was made, however, by the late A. F. Hess 1 that the skin of some children who received 1 teaspoonful of carotene in oil (0.3 Gm.
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It is well known that the skin of human beings takes on a characteristic yellowish color if sufficient amounts of carotene are administered for a certain length of time. The observation was made, however, by the late A. F. Hess 1 that the skin of some children who received 1 teaspoonful of carotene in oil (0.3 Gm.
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2001
Considered to be an effective antioxidant, beta-carotene, a carotenoid that occurs naturally in many vegetables and fruits and that converts to vitamin A in the body, has been the subject of intensive cancer prevention research for decades,1; and is a commonly found supplement on the shelves of most supermarkets.
Sharon S. Mcdonald, Peter Greenwald
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Considered to be an effective antioxidant, beta-carotene, a carotenoid that occurs naturally in many vegetables and fruits and that converts to vitamin A in the body, has been the subject of intensive cancer prevention research for decades,1; and is a commonly found supplement on the shelves of most supermarkets.
Sharon S. Mcdonald, Peter Greenwald
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European journal of clinical nutrition, 1996
Beta-carotene has been shown to exhibit a good radical-trapping antioxidant activity in vitro. We were interested to see if dietary beta-carotene in combination with various intake levels for vitamin A would also inhibit lipid peroxidation.Sixty male Wistar rats received vitamin A (as retinyl palmitate) for 14 weeks in the diet (40,000, 4000 and 400 IU/
Bast, A. +3 more
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Beta-carotene has been shown to exhibit a good radical-trapping antioxidant activity in vitro. We were interested to see if dietary beta-carotene in combination with various intake levels for vitamin A would also inhibit lipid peroxidation.Sixty male Wistar rats received vitamin A (as retinyl palmitate) for 14 weeks in the diet (40,000, 4000 and 400 IU/
Bast, A. +3 more
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The Conversion of Carotene Into Vitamin A
Nature, 1946THE conversion of p-carotene into vitamin A which occurs in is represented in many standard works by means of the hydrolysis equation:
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Nature, 1930
RECENT work by Moore and others (see, for example, Moore, Biochem. Jour., 24, 692; 1930) has left little doubt that, in the rat, carotene can function as a precursor of vitamin A. Experiments which I have just carried out have indicated that the same holds true in the fowl also.
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RECENT work by Moore and others (see, for example, Moore, Biochem. Jour., 24, 692; 1930) has left little doubt that, in the rat, carotene can function as a precursor of vitamin A. Experiments which I have just carried out have indicated that the same holds true in the fowl also.
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1985
The method describes three procedures for the quantitative determination of the total carotene in foodstuffs, that is the total of all-trans carotenes (α-, β-, γ-, δ- and e-) and their stereoisomers of natural origin. β-Carotene, added during the production of foodstuffs, is included in this assay.
D. A. T. Southgate +2 more
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The method describes three procedures for the quantitative determination of the total carotene in foodstuffs, that is the total of all-trans carotenes (α-, β-, γ-, δ- and e-) and their stereoisomers of natural origin. β-Carotene, added during the production of foodstuffs, is included in this assay.
D. A. T. Southgate +2 more
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JAMA: The Journal of the American Medical Association, 1933
To the Editor: —On page 465 ofThe Journal, August 5, appears a letter of inquiry and your answer under the heading "Caritol and Carotene." The S. M. A. Corporation regrets if it has given the impression that it makes any therapeutic claims for Caritol.
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To the Editor: —On page 465 ofThe Journal, August 5, appears a letter of inquiry and your answer under the heading "Caritol and Carotene." The S. M. A. Corporation regrets if it has given the impression that it makes any therapeutic claims for Caritol.
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Carotene Assay, Determination of Carotene in Silages and Forages
Journal of Agricultural and Food Chemistry, 1957H. G. Wiseman, H. M. Irvin, L. A. Moore
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