1. Introduction
Pineapple peel from fruit canned industries is generated in large amount everyday approximately 35% based of raw material [1] or about 10 ton per day from one medium size industry [2]. Fewer occasions, pineapple
peel can be used as animal feed. Normally, this large amount of fruit waste was dumped into the environment which the anaerobic digestion can be naturally occurred. Consequently, the environmental problems, including the formation of methane gas from oxygen deficit condition occur. Methane gas is one of greenhouse gases which have 25 times higher potential to cause global warming than carbon dioxide [3].
This agro-industrial fruit waste consists of high moisture content and full of carbon source, biogas production from this fruit wastes is effectively solution for waste management. The biogas has been accepted to be one of the best alternatives renewable energy [1]. The management with this appropriate technology can decrease an environmental problem, as well as reduce the global warming.