Polymerization of calcium caseinates solutions induced by gamma irradiation

The influence of gamma irradiation on the allergenicity of shrimp (Penaeus vannamei)

“…But at 7 and 10 kGy, newly generated bands (about 45 kDa) with higher molecular weight than that of other doses could be observed. This phenomenon was not unusual, some researchers (Lacroix, Jobin, & Mezgheni, 1998) reported that irradiation can lead to the formation of new proteins by the bonding of free amino acids to protein and protein to protein aggregation.…”

The effects of pulsed ultraviolet light, cold atmospheric pressure plasma, and gamma-irradiation on the immunoreactivity of soy protein isolate

“…It is well known that atmospheric plasma offers a source of reactive oxygen (ROS; e.g., atomic oxygen (O), ozone (O3), hydroxyl radical (OH•)) and nitrogen species (RNS; e.g., N2, NO, NO2, nitric oxide radical (NO•)) as well as UV-A and UV-B radiation (Bußler et al, 2015a;Laroussi & Leipold, 2004), which might have an adverse effect on protein structure. Lacroix, Jobin, Mezgheni, Srour, and Boileau (1998) and Zhenxing et al (2007) reported that this phenomenon might be due to the formation of new proteins by cross-linkage of free amino acids to the protein and protein-to-protein aggregation, resulting in insoluble aggregates. Table 2 Hydrogen peroxide content and pH value of samples treated with direct CAPP.…”

Impact of irradiation and thermal processing on the immunoreactivity of shrimp (Penaeus vannamei) proteins

“…This finding may be explained by a cross-reaction of Pen a 1 with other shrimp components induced by radicals formed during irradiation. 23 This consecutive appearance of different allergenic components illustrated the complexity of chemical modifications that occur through irradiation with or without heat and its influence on the immunoreactivity of shrimp.…”