ChemInform Abstract: NEW TRITERPENOIDS FROM THE LEAVES OF TETRAPANAX PAPYRIFERUM

1980 ◽  
Vol 11 (15) ◽  
Author(s):  
M. ASADA ◽  
S. AMAGAYA ◽  
M. TAKAI ◽  
Y. OGIHARA
Keyword(s):  
Tetrapanax Papyriferum

New triterpenoids from the leaves of Tetrapanax papyriferum

1980 ◽  
pp. 325 ◽  
Author(s):  
Miyako Asada ◽  
Sakae Amagaya ◽  
Makoto Takai ◽  
Yukio Ogihara
Keyword(s):  
Tetrapanax Papyriferum

scholarly journals A slow pyrolysis biochar derived from Tetrapanax papyriferum petiole as an effective sorbent for removing copper ions from aqueous solution

BioResources ◽  
2019 ◽  
Vol 14 (2) ◽  
pp. 4430-4453
Author(s):  
Wenqi Li ◽  
Liping Zhang ◽  
Ying Guan ◽  
Zhihan Tong ◽  
Xiang Chen ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Adsorption Mechanism ◽  
Adsorption Process ◽  
Copper Ions ◽  
Maximum Adsorption Capacity ◽  
Transmission Electron ◽  
Tetrapanax Papyriferum ◽  
Pseudo Second Order ◽  
Nanopore Structure ◽  
Effective Sorbent

Biochar derived from Tetrapanax papyriferum petioles at different pyrolysis temperatures was used to remove copper from aqueous solution. Abundant porous structures were observed with scanning electron microscopy, and transmission electron microscope images revealed a unique layered nanopore structure. A high pyrolytic temperature resulted in a biochar with a higher surface area, ash content, and mineral element content. The maximum adsorption capacity of T. papyriferum petiole biochar (TBC) was 182 mg/g. The Langmuir adsorption isotherm model and pseudo-second-order kinetics model were most suitable for describing the adsorption process, indicating that adsorption takes place at specific homogeneous sites within the adsorbent. The calculated ΔH° values indicated that the adsorption process was endothermic. The adsorption mechanism for TBC was attributed to precipitation, ion exchange, C-π interactions, and complexation. Thus, the biochar used in this study is a promising environmentally friendly and effective adsorbent for removing Cu2+ ions from an aqueous solution.

scholarly journals Minor Saponins from Tetrapanax papyriferum.

1997 ◽  
Vol 45 (3) ◽  
pp. 552-554 ◽  
Author(s):  
Motoh MUTSUGA ◽  
Keisuke KOJIMA ◽  
Iclal SARACOGLU ◽  
Yukio OGIHARA
Keyword(s):  
Tetrapanax Papyriferum

Triterpene Glycosides of Tetrapanax papyriferum. IV. Acidic Glycosides from Stem Bark of T. Papyriferum

2004 ◽  
Vol 40 (1) ◽  
pp. 35-39 ◽  
Author(s):  
V. S. Strigunov ◽  
V. I. Grishkovets ◽  
A. S. Shashkov ◽  
V. V. Kachala ◽  
N. V. Tolkacheva
Keyword(s):  
Stem Bark ◽  
Triterpene Glycosides ◽  
Tetrapanax Papyriferum

scholarly journals Triterpene Saponins from Tetrapanax papyriferum K. KOCH.

1996 ◽  
Vol 44 (11) ◽  
pp. 2107-2110 ◽  
Author(s):  
keisuke KOJIMA ◽  
Iclal SARACOGLU ◽  
Motoh MUTSUGA ◽  
Yukio OGIHARA
Keyword(s):  
Triterpene Saponins ◽  
Tetrapanax Papyriferum

ChemInform Abstract: FURTHER STUDIES ON GLYCOSIDES FROM THE LEAVES OF TETRAPANAX PAPYRIFERUM

1979 ◽  
Vol 10 (50) ◽  
Author(s):  
S. AMAGAYA ◽  
T. TAKEDA ◽  
Y. OGIHARA ◽  
K. YAMASAKI
Keyword(s):  
Tetrapanax Papyriferum

Further studies on glycosides from the leaves of Tetrapanax papyriferum

1979 ◽  
pp. 2044 ◽  
Author(s):  
Sakae Amagaya ◽  
Tadahiro Takeda ◽  
Yukio Ogihara ◽  
Kazuo Yamasaki
Keyword(s):  
Tetrapanax Papyriferum
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