Flocculation Performance of Trimethyl Quaternary Ammonium Salt of Lignin-Sodium Alginate Polyampholyte

Synthesis of a quaternary polyprenyl ammonium salt.

Reaction of primary C(55)-allylic alcohol moraprenol (WT(3)C(7-9)-OH, a polyprenol from mulberry leaves) with triethylamine in the presence of phosphorus oxychloride leads to a quaternary ammonium chloride with a good yield (72%) and high cis-stereoselectivity of the terminal isoprene unit. Cationic polyprenyl derivatives may be useful for transfection and immunological studies.

Mutagenic activity of quaternary ammonium salt derivatives of carbohydrates

This paper presents a study on a series of quaternary ammonium salt (QAS) derivatives of glucopyranosides with an elongated hydrophobic hydrocarbon chain. The new N-[6-(β-D-glucopyranosyloxy)hexyl]ammonium bromides and their O-acetyl derivatives were analyzed via (1)H and (13)C NMR spectroscopy. The mutagenic activity of the newly synthesized QAS was investigated using two different techniques:...

Synthesis, Characterization, and Bioactivity of Rosin Quaternary Ammonium Salt Derivatives

Two series of rosin quaternary ammonium salts (QAS) were synthesized using the same path. The structure of the target products was characterized by HPLC, MS, IR, and 1 HNMR, and the bioactivity was determined by filter paper method using Trametes versicolor (white-rot fungus) and Gloeophyllum trabeum (brown-rot fungus), which are two kinds of general wood decay fungi in nature. The results show...

Testing quaternary ammonium germicides.

Subcutaneous administration of sodium alginate oligosaccharides prevents salt-induced hypertension in Dahl salt-sensitive rats.

OBJECTIVE We investigated the mechanism of antihypertensive effects of sodium alginate oligosaccharides, which are enzymatic products of high-molecular-weight natural alginate from seaweeds, in Dahl salt-sensitive (Dahl S) rats. MATERIALS AND METHODS Dahl S rats fed a high-salt (4% NaCl) diet were subcutaneously administered sodium alginate oligosaccharides (60 mg/day using a continuous osmot...