Extraction with environmentally friendly solvents

Recent applications of on‐line supercritical fluid extraction coupled to advanced analytical techniques for compounds extraction and identification

“…The SFE penalty score are mainly supported on reaching supercritical conditions, which imply a high‐energy consumption to reach working temperature and pressure . On the other hand, the addition of an organic co‐solvent to SFE (to increase its ability to solubilize more polar compounds) is obviously decreasing its “greenness”, despite the volume of organic modifier is usually relative low . To overcome this issue, the use of alternative bio‐solvents like d‐limonene, ethyl lactate, ethanol, and ethyl acetate as modifiers have been suggested .…”

“…On the other hand, the F I G U R E 1 Green certificate evaluation of traditional and emerging extraction technologies for PHAs. Reprinted from Armenta et al, 2017 [13] with permission of Elsevier addition of an organic co-solvent to SFE (to increase its ability to solubilize more polar compounds) is obviously decreasing its "greenness", despite the volume of organic modifier is usually relative low [17]. To overcome this issue, the use of alternative bio-solvents like d-limonene, ethyl lactate, ethanol, and ethyl acetate as modifiers have been suggested [1, [18][19][20][21][22][23].…”

Concentration of pistachio hull extract antioxidants using membrane separation and reduction of membrane fouling during process

“…Extraction of phenols from natural sources is usually conducted with chemical solvents (such as methanol and ethanol), whereas the corresponding fractions can be separated based on polarity. It is well known that many of these chemical solvents are toxic, highly flammable, detrimental to the environment and also costly in big scales; thus, in this research, water was used as an eco‐friendly and economic solvent (Płotka‐Wasylka, Rutkowska, Owczarek, Tobiszewski, & Namieśnik, ).…”

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

“…In this evolution, the tenth (use of renewable resources) and eleventh (replace or remove toxic reagents) principles of GAC are especially relevant [7]. In the liquid microextraction context, environmentally friendly solvents [10,11] such as CyreneTM [12] and deep eutectic solvents [13] are clear examples of this progress.The paradigm of our production system, which up to now has been based on a linear "take-make-dispose" model, is progressively changed to a circular model [14] where reusing, repairing, refurbishing, and recycling appear as key terms. The use of surpluses of natural products as raw materials for the preparation of new sorbents is an interesting contribution of analytical chemistry for changing the production model.…”

“…In this evolution, the tenth (use of renewable resources) and eleventh (replace or remove toxic reagents) principles of GAC are especially relevant [7]. In the liquid microextraction context, environmentally friendly solvents [10,11] such as CyreneTM [12] and deep eutectic solvents [13] are clear examples of this progress.…”