Kitchen waste based biogas plant design pdf
Please forward this error screen to 188. Please forward this error screen to 188. Food waste or food loss is food that is discarded or lost uneaten. The causes kitchen waste based biogas plant design pdf food waste or loss are numerous, and occur at the stages of production, processing, retailing and consumption.
Global food loss and waste amounts to between one-third and one-half of all food produced. Loss and wastage occurs at all stages of the food supply chain or value chain. Definitions of food waste vary, among other things, in what food waste consists of, how it is produced, and where or what it is discarded from or generated by. Lost food may go to landfills, be put back into the food supply chain, or be put to other nonfood productive uses. Food loss is the decrease in quantity or quality of food. Food loss in the production and distribution segments of the food supply chain is mainly a function of the food production and supply system or its institutional and legal framework. EC, which has no specific definition of food waste.
The definitions by the UN and EU have come under criticism for including food that goes to nonfood productive use in their definitions of food waste. According to the authors of one study, this is flawed for two reasons: “First, if recovered food is used as an input, such as animal feed, fertilizer, or biomass to produce output, then by definition it is not wasted. Research into the food industry of the United States, whose food supply is the most diverse and abundant of any country in the world, found food waste occurring at the beginning of food production. Food waste continues in the post-harvest stage, but the amounts of post-harvest loss involved are relatively unknown and difficult to estimate. Some of the food waste produced by processing can be difficult to reduce without affecting the quality of the finished product.
Food safety regulations are able to claim foods which contradict standards before they reach markets. Packaging protects food from damage during its transportation from farms and factories via warehouses to retailing, as well as preserving its freshness upon arrival. America is due to uncertainty over food expiration dates, such as confusion in deciphering best before, sell-by or use-by dates. Retail stores throw away large quantities of food. Usually, this consists of items that have reached their either their best before, sell-by or use-by dates. Food that has passed the best before, and sell-by date, and even some food that passed the use-by date is still edible at the time of disposal, but stores have widely varying policies to handle the excess food.