The Variations, Including Structures and Attenuation to Hemolysis, of Peptide Purified from Dendrobium aphyllum During In Vitro Gastro-Intestinal Digestion and Caco-2 Uptake and Transportation

In a previous study a crude peptide extract was obtained from Dendrobium aphyllum, and this study focused on the functional characterization of the peptide fraction (named DPP) after being purified by DEAE Sepharose. The DPP with high purity contained 16 types of free amino acids and 6 polypeptides. DPP could act as the AAPH-free radical scavenger to protect the erythrocyte under oxidative stress, and the attenuation significantly increased...