Angiotensin 1 (Human) is the precursor to the vasoconstrictor peptide angiotensin II, cleaved by the angiotensin-converting enzyme (ACE).Angiotensin is a peptide hormone that causes vasoconstriction and an increase in blood pressure.

2,2-Di(4-tert-octylphenyl)-1-picrylhydrazyl free radical

Endo-1,4-β-xylanase (Xylanase), a glycoside hydrolase enzyme that degrades arabinoxylan (AX), is commonly utilized in biochemical research. It specifically hydrolyzes the β-xylosidic bonds linking two d-xylopyranosyl residues in a β-(1,4) configuration .