Iranian Research Organization for Science and Technology Advances in Environmental Technology 2476-6674 7 4 2021 11 01 Optimizing biogas and biofertilizer production from abundant Moroccan industrial organic wastes by the formulation and the use of a fungal inoculum 275 287 1127 10.22104/aet.2022.5357.1450 EN Meryem Hadidi Hassan 2 University of Casablanca, Laboratory of Biochemistry, Environment and Agri-Food, LBEA URAC36, 20650 Morocco Bouchaib Bahlaouan Higher Institutes of the Nursing Professions and Techniques of Health ISPITS Casablanca 22500, Morocco Zakaria Asbai Hassan 2 University of Casablanca, Laboratory of Biochemistry, Environment and Agri-Food, LBEA URAC36, 20650 Morocco Ghita Radi Benjelloun Hassan 2 University of Casablanca, Laboratory of Biochemistry, Environment and Agri-Food, LBEA URAC36, 20650 Morocco Said El Antri Hassan 2 University of Casablanca, Laboratory of Biochemistry, Environment and Agri-Food, LBEA URAC36, 20650 Morocco Nadia Boutaleb Hassan 2 University of Casablanca, Laboratory of Biochemistry, Environment and Agri-Food, LBEA URAC36, 20650 Morocco 0000-0003-1628-4311 Journal Article 2021 12 08 In this study, the production of biogas using two fungal strains, Aspergillus niger and Saccharomyces cerevisiae, was studied. In fact, three different waste components consisting of sardine waste (SW), potato peels (PP), and poultry waste (PW) were successfully combined in mesophilic bio-digestion with fungal strains to enhance the production capacities of gas. This work also exhibited the effect of the formulation using a 10-point simplex-centroid mixture design strategy on biogas optimization. The results showed that 12 days was sufficient to achieve stability in mesophilic bio-digestion. This paper proved that the use of fungal inoculum with the mixture of organic and agro-industrial wastes, balanced in chemical elements necessary for cell growth (M7: 66% SW;17% PP;17% PW), led to higher production capacities of biogas. Therefore, the germination and fertilization tests carried out by the digestates resulting from these mixtures showed that they did not inhibit growth and proved to be suitable to improve the crop yields of bell peppers.  https://aet.irost.ir/article_1127_678a1491514b7f1006d605e9161946b1.pdf