Effect of interactive immediacy on online learning satisfaction of international students in Chinese universities: The chain mediating role of learning interest and academic engagement.

The aim of this study was to investigate the effect of interactive immediacy on online learning satisfaction, and the mediating effect of learning interest and academic engagement on the relationship between interactive immediacy and online learning satisfaction. 2221 international students in Chinese universities participated in the questionnaire survey. The coefficient omega (ω) and the confirmatory factor analysis (CFA) were used to test the reliability and validity.

Identification, characterization and in vitro activity of hypoglycemic peptides in whey hydrolysates from rubing cheese by-product.

The by-product of Chinese rubing cheese is rich in whey protein. Whey hydrolysates exhibit good hypoglycemic activity, but which specific peptide components are responsible for this effect have not yet been investigated. Herein, the α-glucosidase inhibitory activity of the ultrafiltered fraction (<3 kDa) of rubing cheese whey hydrolysates was evaluated with the inhibition rate of 37.