vitamin B5
| n. | 1. | See nicotinic acid. |
| 单词 | vitamin b5 | |||
| 释义 | vitamin B5
vitamin B5vi·ta·min B5vitamin B5An obsolete term for the biological activities now known to correspond to pantothenic acid or nicotinic acid.pantothenic acidorvitamin B5a water soluble organic acid (C9H17O5N) that is present in all animal tissues, especially the liver and kidney. Pantothenic acid forms part of coenzyme A which, when bonded to acetic acid, forms ACETYLCOENZYME A. The vitamin is present in almost all foods, especially fresh vegetables and meat, eggs and yeast. A deficiency causes nervous disorders with poor motor coordination. |
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