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Energy use in conventional and organic milk and rye bread production in Finland [An article from: Agriculture, Ecosystems and Environment]


by J. Gronroos, J. Seppala, P. Voutilainen, P. Seuri

List Price: $10.95
Available: Available for download now
Studio: Elsevier
Binding: Digital
Publication Date: November 01, 2006
Publisher: Elsevier


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Product Description
This digital document is a journal article from Agriculture, Ecosystems and Environment, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Energy use is one of the key indicators for developing more sustainable agricultural practices. For this reason, energy use in the production of conventional and organic milk and rye bread in Finland was studied by conducting a life cycle inventory (LCI). The product systems of milk and rye bread consisted of farming, production of fuels, electricity and fertilisers, as well as the processing phases of milk and bread, i.e. the dairy and the bakery. Transportation of fuels, raw materials and the final products was also taken into account. Primary energy consumption was 6.4GJ in average conventional milk production and 4.4GJ in average organic milk production, calculated per 1000l of milk. For rye bread the values were 15.3GJ (conventional) and 13.3GJ (organic) per 1000kg of rye bread. The proportion of renewable energy in the product systems studied varied between 7 and 16% of the total primary energy use, being somewhat higher in organic production. In milk production, energy use efficiency can be increased by favouring organic production. Making changes in the energy use patterns of bakeries would be the fastest way to affect the energy profile of bread, because bakery is responsible for 70 and 80% of the total energy consumption in conventional and organic bread production, respectively.
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