Canola protein aerogels via salt-induced gelation and supercritical carbon dioxide drying

Formation of nanoporous aerogels from defatted rice bran via supercritical carbon dioxide drying

“…Similar densities were previously reported for aerogels from canola protein (∼0.2 g cm −3 ), whey protein (0.22 g cm −3 ), and egg white (∼0.3 g cm −3 ). 16,17,44 Likewise, the densities of starch aerogels from wheat (0.23 g cm −3 ) and maize (0.24 g cm −3 ) were comparable to the data reported here for rice bran starch aerogels. 15,45 The crude starch-1 and protein revealed higher shrinkages of 47 and 58%, respectively, compared to crude starch-2 (26%).…”

“…11,15 FitzPatrick et al revealed a porous network formed using canola seed protein aerogels. 16 Therefore, gels with 15% concentration were further optimized based on their ability to maintain the gel structures better than the 10% gels and their lower densities compared to the 20% gels.…”

“…4C2-4) revealed a more globular structure due to strong repulsive forces of protein molecules. 16 The presence of ber in the crude starch-2 aerogel revealed a signicant difference in the macrostructure as compared to that of the crude starch-1 aerogel. The ndings were further justied using surface area, pore size, density, and porosity, as discussed in Table 2.…”

“…12 Furthermore, various studies have reported the formation of aerogels from different starches, including wheat, 11 corn, 12,14 and pea. 15 In addition, protein-based aerogels have been generated from canola seed, 16 whey protein, 17 and soy protein. 18 Even though there have been several studies on the generation of aerogels from various starch and protein sources, there is a need for novel, inexpensive sources to create aerogels with potential health benefits.…”

Preparation of Protein Aerogel Particles for the Development of Innovative Drug Delivery Systems

“…Carbon dioxide has relatively low critical points (its critical temperature is 31.1 °C, and the pressure is 73.8 atm) and a low price; its use also complies with all of the principles of “green” chemistry [ 17 ]. Supercritical drying of gels allows for the preservation of their original structure and obtaining of highly porous materials with a three-dimensional internal structure [ 18 , 19 , 20 ]. The control of various parameters affecting the structural and physicochemical properties of protein aerogel particles has been the subject of ever-increasing interest over the past ten years.…”