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The Solid Wastes of Coffee Production and of Olive Oil Extraction: Management Perspectives in Rural Areas

M. Echeverría,Elisa Pellegrino,M. Nuti

Published 2017 in Unknown venue

ABSTRACT

There are two problematic solid residues from agriculture and agro‐industry, produced in vast amounts in rural areas: those from coffee bean production and processing and those deriving from the extraction process of olive oil. Notwithstanding these residues originat‐ ing in different geographical areas, they have striking similarities. They both derive from traditional, conventional and organic agriculture; they have a high content in lignins, cel‐ luloses and (poly)phenols; they are produced in million tonnes annually; they pose rel‐ evant environmental problems for disposal; they contain bioactive compounds; and the approach for their re‐use is often similar, sometimes overlapping. The most promising re‐uses in rural areas are for agriculture, as animal feed and for energy production. There are also minor uses, suitable for the production of added‐value commodities. The re‐use will be dependent on a variety of factors according to the diversity of (a) pedoclimatic areas that include altitude and latitude, soil texture and organic matter content, water regime and availability, (b) level of expertise of the small farmers, (c) social environment that includes training opportunities and availability to create associative forms among producers, (d) access to trade and communication networks and (e) easy access to com ‐ munity‐level processing installations. The perspectives of agronomic management and valorization are compatible with the objectives of a regenerative, sustainable agriculture.

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