Polysaccharides ofPlantago majorChemistry of Natural Compounds - Tập 3 - Trang 65-67 - 1967
A. G. Gorin
1. The partial hydrolysis of the polysaccharide of the leaves ofPlantago major L. has given degraded pectic acid. 2. A study of the physicochemical properties and IR spectra of the polygalacturonide and the products of its periodate-nitric acid oxidation has shown that the galacturonic acid residues in degraded pectic acid are in the pyranose from and are linked by a-0-1-4 bonds.
A study of the alkaloids of the epigeal part of Veratrum lobelianum the structure of veralosinineChemistry of Natural Compounds - Tập 7 - Trang 751-755 - 1971
A. M. Khashimov, R. Shakirov, S. Yu. Yunusov
1. Bases with mp 156–158°C and 180–183°C and the known alkaloid veratroylzygadenine have been isolated from the combined alkaloids extracted from the epigeal part ofVeratrum lobelianum. 2. The orientation of the C16-OH group in veralosidine has been corrected. It has the α orientation. 3. The structure of veralosinine has been established as α-acetylveralosidine.
A study of the products of the hydrolysis of the xylan ofMelilotus albus by endo-1 4-β-xylanaseChemistry of Natural Compounds - Tập 16 - Trang 338-342 - 1980
M. S. Dudkin, N. A. Rodionova, I. S. Kazanskaya, I. V. Gorbacheva, E. I. Kozarez, N. A. Denisyuk
The enzymatic hydrolysis of a 4-0-methylglucuronoxylan of white sweetclover (Melilotus albus) by a highly purified homogeneous endo-1, 4-β-xylanase fromAspergillus niger 14 has shown that the enzyme hydrolyzes 97% of the polysaccharide in 72 h. Acidic and neutral oligosaccharides were found in the hydrolysate after the action of the enzyme. An investigation of the hexauronic acid isolated has show...... hiện toàn bộ