Preliminary studies on physicochemical properties of Angelica sinensis polysaccharide-iron complex / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 747-750, 2006.
Artigo
em Chinês
| WPRIM
| ID: wpr-351765
ABSTRACT
<p><b>OBJECTIVE</b>To study some physicochemical properties of Angelica sinensis polysaccharide-iron complex (APC).</p><p><b>METHOD</b>Based on the qualitatively identified reactions of iron (III), the qualitatively identified reactions of APC were found out by comparing hydroxide. The content of iron (III) in APC was determined with iodometry. The stability of APC under physiological pH conditions was judged by titrating APC with sodium hydroxide. The deoxidization of APC was tested with colorimetric analysis.</p><p><b>RESULT</b>APC showed the qualitatively identified reactions of iron (III). The content of iron (III) in APC ranged from 10% to 40%, and the water-solubility of APC was related to the content of iron (III). The complex was stable at physiological pH from 3 to 12, without precipitation and dissociation. At 37 degrees C, Fe (III) in the complex was completely reduced to Fe (III) by ascorbic acid in about 6 hours.</p><p><b>CONCLUSION</b>APC can be qualitatively identified by using the qualitatively identified reactions of iron (III). When its iron (III) content is within 20%-25%, APC has a better ability to dissolve in water. And the complex is stable under physiological pH conditions.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Plantas Medicinais
/
Polissacarídeos
/
Solubilidade
/
Compostos Férricos
/
Química
/
Físico-Química
/
Angelica sinensis
/
Estabilidade de Medicamentos
/
Fenômenos Químicos
/
Concentração de Íons de Hidrogênio
Idioma:
Chinês
Revista:
China Journal of Chinese Materia Medica
Ano de publicação:
2006
Tipo de documento:
Artigo
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