Factors Influencing the Vitamin C Content of Vegetables
نویسندگان
چکیده
منابع مشابه
Vitamin C in Vegetables
The oxidation of ascorbic acid to dehydroascorbic acid may be cat,alyzed by copper (1, 8)) by ot,her metals (11) and metallic compounds, by norit charcoal (5)) and by an enzyme or enzyme complex (12, 13). The dehydroascorbic acid has an antiscorbutic activity similar to that of ascorbic acid (6) and may be reduced to the latter by the use of H,S and other reductants (14) The existence of ascorb...
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Vitamin C, including ascorbic acid and dehydroascorbic acid, is one of the most important nutritional quality factors in many horticultural crops and has many biological activities in the human body. The content of vitamin C in fruits and vegetables can be influenced by various factors such as genotypic differences, preharvest climatic conditions and cultural practices, maturity and harvesting ...
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Assessment of vitamin K (VK) dietary intakes has been limited by incomplete VK food composition data for the US food supply. The phylloquinone (VK-1 or vitamin K1) concentrations of a variety of geographically representative vegetables (n 1⁄4 218) were determined by reversed-phase high performance liquid chromatography with fluorescent detection. Green leafy and flower vegetables including broc...
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15 صفحه اولFactors Affecting the Vitamin C Content of Apples'
Marked variations in the vitamin C content of different varieties of apples have been observed. The values of 21 Massachusetts-grown varieties were reported by Smith and Fellers,^ and the results of several other workers have been summarized by Batchelder.^ Between different lots of apples of the same variety small differences in vitamin C concentration have been found which appeared to result ...
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ژورنال
عنوان ژورنال: American Journal of Public Health and the Nations Health
سال: 1936
ISSN: 0002-9572
DOI: 10.2105/ajph.26.9.905