Methodological standardization

Superoxide dismutase (SOD) is one of the most important antioxidant defense enzymes in biological systems. It catalyzes the dismutation of superoxide anion radicals (O2•−) to generate hydrogen peroxide and molecular oxygen, thereby suppressing the amplification of reactive oxygen species and ...

Glycerol and triglycerides (TG) are two important analytical targets in lipid metabolism research, biochemical testing, food analysis, and fermentation process monitoring. Glycerol is not only the structural backbone of triacylglycerols, phospholipids, and related lipid molecules, but also a key ...

Collagenase (also referred to as collagen hydrolytic enzymes) comprises a class of proteases capable of cleaving native collagen triple helices under near-physiological pH and temperature.

Glucose-6-phosphate dehydrogenase (G6PD) is the key rate-limiting enzyme of the oxidative phase of the pentose phosphate pathway (PPP). It catalyzes the oxidation of glucose-6-phosphate (G6P) to 6-phosphoglucono-δ-lactone while reducing NADP⁺ to NADPH. NADPH is pivotal for antioxidant ...