Study on accumulation of polysaccharides and alcohol-soluble extracts contents of Dendrobium officinale leaves / 中国中药杂志
China Journal of Chinese Materia Medica
; (24): 2314-2317, 2015.
Article
em Zh
| WPRIM
| ID: wpr-337938
Biblioteca responsável:
WPRO
ABSTRACT
This paper revealed the accumulation regularity of polysaccharides and alcohol-soluble extracts contents of Dendrobium officinale leaves, which have provided basis for the development and utilization of the leaves. The polysaccharides and alcohol-soluble extracts contents of three D. officinale strains leaves collected in different growing periods were determined by phenol-sulfric acid method and hot-dip method respectively. The results showed that the content of polysaccharides in leaves was 4.45% -12.17%, and was about a quarter in stems. The alcohol-soluble extracts content in leaves was 7.45% - 29.34%, and was 1.5 times that of stems. The quality variation of polysaccharides in leaves was closely related to the phenophase. The leaves with lower level of metabolism in three stages: winter, early germination stage and deciduous period, which led to lower content of polysaccharides. The leaves at the vigorous growth stage with higher content of polysaccharides. The alcohol-soluble extracts were closely associated to the formation and germination of buds. The content of alcohol-soluble extracts peaked before sprout, and promoted the growth of new shoots.
Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Polissacarídeos
/
Estações do Ano
/
Medicamentos de Ervas Chinesas
/
Química
/
Folhas de Planta
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Dendrobium
/
Metabolismo
Idioma:
Zh
Revista:
China Journal of Chinese Materia Medica
Ano de publicação:
2015
Tipo de documento:
Article