Anar Phali (Opuntia ficus) juice extract as a novel pollution-free source of natural betalain dye for wool yarn. - Riaz, Yousra; Barkaat, Samra; Adeel, Shahid; Fazal-ur-Rehman; Ibrahim, Muhammad; Zuber, Muhammad; Ozomay, Meral; Khattak, Shahnaz Parveen (Environmental Science & Pollution Research, 2023)