Investigación cualitativa de vitamina A y provitamina A en el achiote (Bixa orellana L.)
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| 作者: | |
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| 格式: | artículo original |
| 状态: | Versión publicada |
| Fecha de Publicación: | 1956 |
| 实物特征: | A study is reported of vitamin A and provitamin A in the coloring matter of the seeds of Bixa orellana L. Chemical tests showed the absence of vitamin A and of carotenoids capable of a positive Carr-Price reaction. Biological tests were made on groups of white rats using "raw" (chloroform), and "cooked" (hot water) extracts of Bixa seeds, with a control group and a reference group which was fed 5 I. U. Vitamin A thrice a week. The results, as presented in tables 1-4 and in graph 1, show the carotenoid substances of Bixa seeds to be susceptible of use by the rats organism as a provitamin, and the usual hot water extraction to diminish apparently the quantity or the value of such a provitamin. |
| País: | Portal de Revistas UCR |
| 机构: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| 语言: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/28901 |
| 在线阅读: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/28901 |