Evolution of the Olive Oil Industry along the Entire Production Chain and Related Waste Management

The production of olive oil involves the sustainable management of the waste produced along the entire production chain. This review examines the developments regarding cultivation techniques, production technologies, and waste management, highlighting the goals to be achieved and the most reasonable prospects. The results show that cultivation and production technology have evolved to an almost final solution to meet economic feasibility, keeping the oil's high quality. Continuous horizontal decanters will coexist with traditional mills in many countries with old olive oil production and consumption traditions. High-quality products have conquered markets, especially in the wealthiest countries. At the same time, the exploitation of dried pomace by solvent extraction is increasingly an obsolete practice. However, waste management is still looking for one or a few reasonable solutions that meet modern society's constraints. The enhancement of some experienced technologies and the full-scale application of emerging technologies and strategies should solve this problem in the short-medium term. A short discussion is reported on the possibility of unifying the nature and the quality of the waste, whatever the olive oil production method is. Furthermore, modern thermochemical treatment for solid wet organic waste disposal is examined and discussed.

Automated summary

This review examines the developments in waste management in olive oil production, highlighting the advancements in cultivation and production technologies, as well as the prospects for solving waste management issues. The study emphasizes the need for reasonable solutions that maintain the economic feasibility and high quality of olive oil. The outdated practice of solvent extraction from dried pomace is criticized, and the importance of enhancing existing technologies and adopting emerging ones is emphasized for addressing waste management challenges in the short-medium term.