Preparation, identification, and molecular docking of novel angiotensin-converting enzyme inhibitory peptides derived from rice-based distillers' spent cakes.

Background: Rice-based distillers' spent cake (RDSC), a by-product of the Chinese liquor (Baijiu) industry, is a potential source of angiotensin-converting enzyme (ACE) inhibitory peptide. Since ACE plays a crucial role in controlling hypertension, inhibition of ACE has been widely emphasized. The ACE inhibitory active peptide derived from by-products of food has been recognized as a safer and cheaper inhibitor.

Occurrence of moisture in deep gas-bearing shale matrix and its impacts on methane adsorption/desorption capability under favorable reservoir conditions.

To comprehend impacts of moisture on exploring and producing shale gas, the rules of pseudo- moisture occurrence in deep shales were revealed through low-pressure N adsorption and desorption, and CO adsorption measurements. The influences of pseudo- moisture on CH adsorption/desorption in the shales were explored at 353.15 K and pressures up to 30 MPa by using the volumetric method.