“Optimisation of Ultrasound Frequency, Extraction Time and Solvent for the Recovery of Polyphenols, Phlorotannins and Associated Antioxidant Activity from Brown Seaweeds” 2020: Marine Drugs; Viruja Ummat, Brijesh K. Tiwari, Amit K. Jaiswal, Kevin Condon, Marco Garcia-Vaquero, John O’Doherty, Colm O’Donnell and Gaurav Rajauria