scholarly journals WATER-SOLUBLE COMPONENTS OF Ancistrocladus cochinchinensis

2017 ◽  
Vol 55 (6) ◽  
pp. 683
Author(s):  
Le Quynh Lien ◽  
Hoang Le Tuan Anh ◽  
Nguyen Thi Cuc ◽  
Tran My Linh ◽  
Vu Huong Giang ◽  
...  

Using various chromatography methods, a saponin, ginsenoside Rg1 (1), and three phenolic glycosides, tortoside A (2), phlorizin (3), and 4-hydroxy-2-methoxyphenyl-6-O-syringyl-b-D-glucopyranoside (4) were isolated from the water-soluble fraction of Ancistrocladus cochinchinensis. Their structures were elucidated by 1D- and 2D-NMR spectroscopic analyses and comparison with those reported in the literature. Compound 1 was reported from A. cochinchinensis for the first time.

2013 ◽  
Vol 13 (2) ◽  
pp. 219-224 ◽  
Author(s):  
Khem R Joshi ◽  
Hari P Devkota ◽  
Shoji Yahara

Metlaline (1), piyaline (2), piyaline methyl ester (3), a pair of diasteriomeric epimers of marsuposide (4a and 4b), and pterostilbene (5) were isolated from the water soluble fraction of 70% MeOH extract of Pterocarpus marsupium (Roxb.) heartwood. Among them compound 3 was isolated for the first time from natural source. Pterostilbene has been found as antioxidant, anti-diabetic and anti-cancer agent. Nepal Journal of Science and Technology Vol. 13, No. 2 (2012) 219-224 DOI: http://dx.doi.org/10.3126/njst.v13i2.7740


2014 ◽  
Vol 91 (5) ◽  
pp. 473-481 ◽  
Author(s):  
Guiai Jiao ◽  
Xiangjin Wei ◽  
Gaoneng Shao ◽  
Lihong Xie ◽  
Zhonghua Sheng ◽  
...  

1957 ◽  
Vol 35 (4) ◽  
pp. 241-250 ◽  
Author(s):  
W. G. Martin ◽  
J. E. Vandegaer ◽  
W. H. Cook

Livetin, the major water-soluble protein of hen egg yolk, was found to contain three major components having mobilities of −6.3, −3.8, and −2.1 cm.2 sec.−1 volt−1 at pH 8, µ 0.1, and these have been designated α-, β-, and γ-livetin respectively. The α- and β-livetins were separated and purified electrophoretically after removal of γ-livetin by precipitation from 37% saturated ammonium sulphate or 20% isopropanol. The α-, β-, and mixed livetins resembled pseudoglobulins in solubility but γ-livetin was unstable and this loss of solubility has, so far, prevented its characterization. Molecular weights determined by light scattering, osmotic pressure, and Archibald sedimentation procedure yielded respectively: 8.7, 7.8, and 6.7 × 104 for α-livetin, and 4.8, 5.0, and4.5 × 104 for β-livetin. Under suitable conditions of sedimentation and electrophoresis, egg yolk has been shown to contain three components having the same behavior as the three livetins of the water-soluble fraction.


Chemosphere ◽  
2010 ◽  
Vol 78 (11) ◽  
pp. 1301-1312 ◽  
Author(s):  
S.M. Rodrigues ◽  
B. Henriques ◽  
J. Coimbra ◽  
E. Ferreira da Silva ◽  
M.E. Pereira ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document