Decoding of novel umami peptides from corn fermented powder and its mechanism via multisensory techniques, virtual screening, and molecular simulation approaches.

This study aimed to identify umami peptides in corn fermented powder (CFP) and investigate their umami enhancing effect. Ultrafiltration and ethanol precipitation was used to separate the umami peptides in CFP. Dynamic sensory evaluations were used to identify the peptide fraction with the intense umami taste, and the peptides in the fraction were identified by nano-liquid chromatography-tandem mass spectrometry.

Comparison of Efficacy and Safety of Different Doses of Dexmedetomidine for Epidural Labor Analgesia.

Objective: To explore the efficacy and safety of different doses of dexmedetomidine (DEX) for epidural labor analgesia (ELA).

Methods: From June 2021 to June 2022, 147 parturients who underwent ELA in our hospital were selected and divided into low- (0.5 g/kg DEX), medium- (0.