... almost insoluble in alcohol and ether. Specific rotation[a]D20: +26.5°∼+29.0°.L-Valine is ... and promote the growth of children and improve calcium absorption, promote bone growth, the lack of ... would affect the growth and development, caused by a nerve-impaired, movement disorders, anemia, and so on ... .02%Organic volatile impuritiesconformconform L-Valine food additives for healthy food treatment