Process evaluation for enhanced production of aflatoxin-free citric acid by food-grade Aspergillus niger - Ambreen Latif; Hazrat Ali; Muhammad Bilal Khan Niazi; Zaib Jahan; Noor Hassan; Iqra Latif Ghuman; Abdul Tawab; Anam Saqib; Muhammad Hamid Rashid (PLoS ONE, 2025)