Production of citric acid from different agricultural waste using Aspergillus niger

The demand of citric acid in various industries especially in food industries is growing continuously. Various techniques for production of citric acid in large scale were searched and still continuously studies are going on. However, there are still some very efficient manners by which we can achieve production of citric acid which are ecofriendly too. In this study some agricultural waste/fruit peels such as Banana peels, Rice straw and coconut husk are used as a substrate for production of citric acid by using of Aspergillus niger. The above substrates are very commonly available in our surroundings. In this method solid state fermentation has been performed by using Aspergillus niger as the inoculums. Satisfactory results obtained by using of simple filtration and recovery methods. The bio production of citric acid by this method will result in very effective means of waste management.