Compare antioxidant activity properties of oligosaccharides derived from waste of (cultured white leg shrimp (Litopenaeus vannami), indian Squid (Uroteuthis oluvaucelii) and blue crab (Portunus pelagicus)

The optimal utilization of waste from aquaculture factories is one of the most important issues and needs to be reviewed. On the one hand, the entry of these wastes as waste in addition to the production of leachate and threats of aquatic ecosystems and the occurrence of environmental problems can be a contributing factor to various diseases. On the other hand, such valuable resources can be exploited and result in the production of high added high value products such as enzymes, gelatin, chitin, chitosan, and so on. Considering the biologically and biologically active effects of extracted oligosaccharides from quintic compounds of marine molluscs in recent years, known as chitooligosaccharides, Possibility of using these superficial components as antioxidant compounds was studied. In surveys, in almost all tests, chitooligosaccharides showed a fairly good inhibitory ability that could be considered as a good source for antioxidant studies. In the DPPH radical neutralization test, with a little distance from vitamin C, indigenous oligosaccharide squid with acid extraction of 78.23%, Investigation of iron ion regeneration, chitooligosaccharides of crayfish with enzymatic extraction showed the highest effect of 19% reduction activity. Also, in the antioxidant capacity test, total acidity extraction of white leg shrimp chitooligosaccharides showed the highest antioxidant capacity of 42.19.