Process Optimization for Enhanced Biogas Production from Mango Pulp Waste

India is the largest producer and consumer of fruit and vegetable waste in the world. India produces annually, 18 million tonnes of mangos out of which 30 % goes as waste due to improper storage, transportation lack of appropriate post harvest technologies and damage caused due to pests and diseases. As part of mango processing in the food industry, huge quantities of mango pulp is produced which can be used as a high quality substrate for biogas production. Since mango pulp is a high carbon substrate, supplementation of urea has proved to improve biogas production. Similarly, various metal ions have stimulatory effects in enhancing the biogas production from raw mango pulp waste especially Fe2+. Also, optimum combinations of various metal ions further boost the biogas production.