it
poses a threat to the environment by producing toxic gases such
as dioxin (Kim and Kim, 2010). Landfill is relatively cheap, but uses
vast land resources, leading to serious secondary pollution such as
release of methane gas, which has a significantly higher impact on
global warming than carbon dioxide (Palmiotto et al., 2014) and
releases leachates into the underground water systems. Food
waste recycling is a promising alternative that could reduce the
cost of waste treatments and decrease the generation of odor,
refuses, and air pollutants. For instance, composting or animal feed
of the food waste has been recommended. However, in the case of
animal feed,