scholarly journals Emerging Extraction Technologies in Olive Oil Production

2019 ◽  
Author(s):  
Alev Yüksel Aydar
Keyword(s):  
Olive Oil ◽  
Oil Production

scholarly journals Supercritical CO2 Extraction of Phytocompounds from Olive Pomace Subjected to Different Drying Methods

Molecules ◽  
2021 ◽  
Vol 26 (3) ◽  
pp. 598
Author(s):  
Graziana Difonzo ◽  
Antonella Aresta ◽  
Pietro Cotugno ◽  
Roberta Ragni ◽  
Giacomo Squeo ◽  
...  
Keyword(s):  
Olive Oil ◽  
Freeze Drying ◽  
Oil Production ◽  
Production Costs ◽  
Drying Methods ◽  
Olive Pomace ◽  
Hot Air Drying ◽  
Air Drying ◽  
Hot Air ◽  
Pharmaceutical Industries

Olive pomace is a semisolid by-product of olive oil production and represents a valuable source of functional phytocompounds. The valorization of agro-food chain by-products represents a key factor in reducing production costs, providing benefits related to their reuse. On this ground, we herein investigate extraction methods with supercritical carbon dioxide (SC-CO2) of functional phytocompounds from olive pomace samples subjected to two different drying methods, i.e., freeze drying and hot-air drying. Olive pomace was produced using the two most common industrial olive oil production processes, one based on the two-phase (2P) decanter and one based on the three-phase (3P) decanter. Our results show that freeze drying more efficiently preserves phytocompounds such as α-tocopherol, carotenoids, chlorophylls, and polyphenols, whereas hot-air drying does not compromise the β-sitosterol content and the extraction of squalene is not dependent on the drying method used. Moreover, higher amounts of α-tocopherol and polyphenols were extracted from 2P olive pomace, while β-sitosterol, chlorophylls, and carotenoids were more concentrated in 3P olive pomace. Finally, tocopherol and pigment/polyphenol fractions exerted antioxidant activity in vitro and in accelerated oxidative conditions. These results highlight the potential of olive pomace to be upcycled by extracting from it, with green methods, functional phytocompounds for reuse in food and pharmaceutical industries.

scholarly journals Intergraded Applied Methodology for the Treatment of Heavy Polluted Waste Waters from Olive Oil Industries

2011 ◽  
Vol 2011 ◽  
pp. 1-14 ◽  
Author(s):  
Antonis A. Zorpas ◽  
Vassilis J. Inglezakis
Keyword(s):  
Olive Oil ◽  
Oil Production ◽  
Olive Mill Wastewater ◽  
Fenton Process ◽  
Waste Waters ◽  
Warm Climate ◽  
Climate Conditions ◽  
Integrated Method ◽  
Third Stage ◽  
Olive Mill

The annual olive oil production in Cyprus is in the range of 2700–3100 t y−1, resulting in the generation of significant amount of waste. The cocomposting of the olive oil solid residue (OOSR) and the treated wastewaters (with Fenton) from the olive oil production process with the application of reed beds has been studied as an integrated method for the treatment of wastewater containing high organic and toxic pollutants under warm climate conditions. The experimental results indicated that the olive mill wastewater (OMW) is detoxified at the end of the Fenton process. Specifically, COD is reduced up to 65% (minimum 54.32%) by the application of Fenton and another 10–28% by the application of red beds as a third stage. The final cocomposted material of OOSR with the treated olive mile wastewater (TOMW) presents optimum characteristics and is suitable for agricultural purpose.

Thermal behaviour and kinetic study of the olive oil production chain residues and their mixtures during co-combustion

2016 ◽  
Vol 214 ◽  
pp. 266-275 ◽  
Author(s):  
C. Buratti ◽  
S. Mousavi ◽  
M. Barbanera ◽  
E. Lascaro ◽  
F. Cotana ◽  
...  
Keyword(s):  
Kinetic Study ◽  
Olive Oil ◽  
Thermal Behaviour ◽  
Oil Production ◽  
Production Chain

TREATMENT OF OLIVE OIL PRODUCTION WASTEWATERS

2012 ◽  
pp. 979-1014
Author(s):  
Taner Yonar ◽  
Berna Kiril Mert ◽  
Kadir Kestioglu ◽  
Yung-Tse Hung
Keyword(s):  
Olive Oil ◽  
Oil Production

A new olive oil production scheme with almost zero wastes

2020 ◽  
Author(s):  
Alexis G. Pantziaros ◽  
Xenofon A. Trachili ◽  
Andreas D. Zentelis ◽  
Varvara Sygouni ◽  
Christakis A. Paraskeva
Keyword(s):  
Olive Oil ◽  
Oil Production ◽  
Production Scheme

scholarly journals Sustainable Environmental Management and Valorization Options for Olive Mill Byproducts in the Middle East and North Africa (MENA) Region

Processes ◽  
2020 ◽  
Vol 8 (6) ◽  
pp. 671
Author(s):  
Adnan Khdair ◽  
Ghaida Abu-Rumman
Keyword(s):  
Olive Oil ◽  
Fossil Fuels ◽  
Economic Value ◽  
Oil Production ◽  
Small Scale ◽  
Waste Streams ◽  
Mena Region ◽  
Important Benefit ◽  
Olive Trees ◽  
Olive Mill

Cultivation of olive trees and olive oil production have been considered as a legacy for the Mediterranean region. This custom represents a very important benefit for many nations in terms of wealth and health. However, huge amounts of by-products and waste are generated during olive oil production. This represents a serious environmental impact on land and water bodies if not properly handled. Olive oil extraction generates two waste streams, a solid waste called pomace and olive mill wastewater (OMWW), which has been considered as highly pollutant and phytotoxic waste. These wastes have high disposal costs and predominantly generated from small-scale enterprises that have limited financial resources to treat them properly before discharge to the environment. Besides being a serious environmental problem, OMWW has potential economic value that remains to be utilized such as: fertilizers, valuable antioxidants agents and fatty acids needed in human diet. Also, Olive pomace is a valuable renewable energy source with an energy density of 23 MJ/kg and has become an inexpensive alternative for fossil fuels. Aiming at adding value to the olive production sectors and potential valorization options for byproducts in the MENA region, international practices applied in olive mills wastes management’s and treatment methods used in major oil producing countries are presented.

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