Preparative separation and purification of rosavin in Rhodiola rosea by macroporous adsorption resins

Preparative separation and purification of steroidal saponins inParis polyphyllavar.yunnanensisby macroporous adsorption resins

“…Working time and volume consumption are qualified with the following equations (Ma et al, 2009). Process throughput is expressed by P t to show saponins mass produced per volume of separation media per day.…”

“…Moreover, the recovery percent (R e ) of RPS of method A is higher than that of the other two methods. In modern pharmaceutical process, achieving a higher P t and lower P sc is the prime process objective (Ma et al, 2009). In terms of P t and P sc , method A was better than the other two methods, which is the most appropriate one for separation and enrichment of RPS.…”

Extraction and Advanced Adsorbents for the Separation of Perillaldehyde from Perilla frutescens (L.) Britton var. crispa f. viridis Leaves

“…Above 1, it is nearly impossible (Tan et al, 2008). According to the results in Table 4 Static desorption Ethanol is the preferable desorbent for macroporous resin because it can be easily removed from the solution and recycled and has low cost and no toxicity to the samples (Ma et al, 2009;Fan and Xu, 2008;Geng et al, 2009;Lin Fig. 3.…”

“…Adsorption is the mostly widely used process for condensates with concentrations less than 2000 ppm due to low solubilities (Machale et al, 1997;Amin et al, 2001). In recent years, macroporous resins have been increasingly viewed as an alternative for the separation and enrichment of effective components from many natural extracts, due to its simpler operation, higher efficiency, less yielding cost, more friendly to environmental protection and easier regeneration (Du et al, 2008;Fu et al, 2006;Ma et al, 2009;Sun et al, 2009). crispa f. viridis leaves (Chang et al, 2013).…”

DFT study on hydrogen-bonding adsorption mechanism of rutin onto macroporous adsorption resins functionalized with amino, hydroxyl, and carboxyl groups

“…They have been shown to be potentially powerful separation materials and have been widely applied in many fields, such as chromatographic analysis [1], treatment [2], pharmaceutical [3], food industries, and wastewater disposal [4]. Except for the general advantage of that of the common adsorbent, MARs possess many special characteristics such as high mechanical strength, good acid and alkali resistance, porous availability, high surface area, and a long lifetime that make them more promising [5][6][7]. To gain a greater adsorption capacity and a higher adsorption selectivity for some specific organic compounds, chemical modification of MARs is often undertaken by introducing special functional groups into the matrix of the polymeric adsorbents [8,9].…”