Comparison of Polysaccharide and Dendrobine Content in Hejiang Dendrobium nobile at Different Harvesting Time / 中国药房
China Pharmacy
;
(12): 73-77, 2018.
Artigo
em Chinês
| WPRIM
| ID: wpr-704523
ABSTRACT
OBJECTIVE:
To determine quality indexes of Hejiang Dendrobium nobile at different harvesting time and months,and to provide scientific reference for reasonable harvesting period of Hejiang D.nobile.METHODS:
The stem of annual,biennial and triennial D.nobile were collected.The drying rate,the contents of polysaccharides (colorimetry),dendrobine (GC) and total alkaloids (colorimetry),effective component total rate (dendrobine×drying rate) were measured.Biennial D.nobile were collected in autumn and winter (Oct.of the second year-Mar.of the third year,15th day a month) to determine drying rate,the contents of polysaccharides and dendrobine.RESULTS:
The drying rate,the contents of polysaccharides and effective component total rate were higher than annual and triennial D.nobile.The content of total alkaloids and dendrobine were in descending orderannual D.nobile (0.52%,0.48%) >biennial D.nobile(0.48%,0.44%) >triennial D.nobile (0.32%,0.22%).From Oct.of the second year to Mar.of the third year,the drying rate of biennial D.nobile was increasing month by month;the contents of polysaccharides and dendrobine increased firstly and then decreased;the content of polysaccharide was the highest in Feb.(17.32%),and the content of dendrobine reached the highest level in Dec.(0.51%).CONCLUSIONS:
The optimal harvesting period is biennial Hejiang D.nobile in Dec.and Jan.(third years before flowering),considering flowering characteristics,drying rate,the contents of polysaccharide and dendrobine.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
China Pharmacy
Ano de publicação:
2018
Tipo de documento:
Artigo
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