Biocatalysis

Biocatalysis centers on enzyme molecules or cell-based catalytic systems and achieves highly efficient and highly selective transformations under mild conditions through precise control of substrate recognition, transition-state stabilization, and reaction-pathway selection.

Cholesterol exists in vivo predominantly as free cholesterol and cholesteryl esters. Because cholesteryl esters are more hydrophobic, they represent the major form used for lipoprotein transport and intracellular storage.

While industrialization has substantially improved transportation and manufacturing efficiency, it has also generated environmental costs, including increased greenhouse-gas emissions, accumulation of solid waste (especially plastics), and the spread of chemical pollution. Purified ...