New Picrotoxinin-type and Dendrobine-type Sesquiterpenoids from Dendrobium Snowflake ‘Red Star’

In vitro antioxidant activities of a water-soluble polysaccharide derived from Dendrobium nobile Lindl. extracts

“…Among the Dendrobium genus, most studies have focused on the bioactivity and structural types of some small molecules, such as bibenzyl, phenanthrene, anthracene, fluorene, coumarin, flavone, cinnamate, sesquiterpene, sterol, fatty acid, and alkaloids [2][3][4][5][6][7][8][9][10][11][12]. However, the polysaccharide constituents were much less investigated.…”

New Alloaromadendrane, Cadinene and Cyclocopacamphane Type Sesquiterpene Derivatives and Bibenzyls from Dendrobium nobile

“…There are 63 species of Dendrobium found in China. Those Dendrobium species studied to date mainly contain alkaloids [1], [2], bibenzyls [3], phenanthrenes [4], fluorenones [5], sesquiterpenes [6], coumarins [7], steroids [8] and polysaccharides [9]. The stem of Dendrobium nobile Lindl (Chinese name ªJin-Chai-Shi-Huº) is a famous traditional Chinese medicine used as tonic.…”

“…The extract of D. nobile was found to possess immunostimulatory activity [10], and the finding of immunomodulatory sesquiterpene glycosides has been reported recently [11]. To our best knowledge, a number of sesquitepene alkaloids, sesquiterpene glycosides, phenanthrenes, bibenzyls, sesquiterpenes, diterpenes and steroids have been identified from stems of D. nobile [2], [6], [8], [11], [12], [13], [14], [15]. In order to know more about chemical constituents of D. nobile, a systematical reinvestigation has been undertaken.…”

“…In order to know more about chemical constituents of D. nobile, a systematical reinvestigation has been undertaken. We herein report the isolation and structure elucidation of five new sesquiterpene glycosides (1 ± 5), one new sesquiterpene (6), two new bibenzyls (7 ± 8) and seven known components (9 ± 15) from stems of D. nobile.…”

Application of two‐dimensional near‐infrared (2D‐NIR) correlation spectroscopy to the discrimination of three species of Dendrobium

“…Research focused on its constituents and pharmacological activity has shown that there are several active constituents, such as alkaloids, stilbenoids, glycosides and polysaccharides [2]. Recent pharmacological studies have shown that some of the components and extractives of Dendrobium species displayed anti-tumor [3][4][5], anti-angiogenic [6], anti-platelet aggregation [7], anti-inflammation [8] and immunoregulatory activities [9], which are partly responsible for its actions and indications of the herb in traditional remedies. So it is an important issue to comprehensively evaluate the different origins of Dendrobium, as to ensure the clinical efficacy.…”