Sonoprocessing improves phenolics profile, antioxidant capacity, structure, and product qualities of purple corn pericarp extract oleh Isaac Duah Boateng, Ravinder Kumar, Christopher R. Daubert, Sherry Flint-Garcia, Azlin Mustapha, Lucas Kuehnel, Joseph Agliata, Qianwei Li, Caixia Wan, Pavel Somavat