Analysis of the chemical composition and biological activity of secondary residues of Turkish Gall treated by semi-bionic technology

Abstract In order to meet the contemporary concept of sustainable development, reuse biological waste has also been emphasized. Lots papers nowadays study extraction primary residues. The disposal secondary residues is often neglected. chemical composition and activity Turkish Gall (SRTG) were researched in this paper. We selected five methods extract SRTG, conditions water, hydrochloric acid buffer (pH = 2), artificial gastric juice phosphate 6.8), intestinal solution 6.8). changes phenolic components determined by spectrophotometry high-performance liquid chromatography. acid-base environment did not affect total polyphenols contents gallic ethyl ester SRTG. But it affected groups 1.63 times that water group. SRTG extracted had better inhibition on Escherichia coli Staphylococcus aureus . addition, showed positive effects 1,1-Diphenyl-2-picrylhydrazyl Free, 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid), ·OH radicals, Ferric ion reducing antioxidant power. Some active can be effectively released through digestion simulated juices vitro. change ingredients affects antibacterial capacity. results provide data support for conversion into products, such as feed additives. certain contributes value circular economy. Graphical