Conjugation of Coffee Phenolics With Milk Bioactive Peptides: Characterization of Coffee and Apple Phenolics and Evaluation of Polyphenol Oxidase as a Natural Biocatalyst
ABSTRACT This study aimed to characterize phenolic compounds from green coffee beans and apple juices and to evaluate polyphenol oxidase (PPO) from different apple cultivars as a natural biocatalyst for phenolic–milk bioactive peptide conjugation. Phenolic profiling by HPLC–MS analysis showed that chlorogenic acids wer...