The utilisation solutions of olive mill by‐products in the terms of sustainable olive oil production: a review

2021 ◽  
Author(s):  
Dora Klisović ◽  
Anja Novoselić ◽  
Anet Režek Jambrak ◽  
Karolina Brkić Bubola
Keyword(s):  
Olive Oil ◽  
Oil Production ◽  
By Products ◽  
Olive Mill

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.

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.

scholarly journals Industrial-Scale Study of the Chemical Composition of Olive Oil Process-Derived Matrices

Processes ◽  
2020 ◽  
Vol 8 (6) ◽  
pp. 701
Author(s):  
Haifa Jebabli ◽  
Houda Nsir ◽  
Amani Taamalli ◽  
Ibrahim Abu-Reidah ◽  
Francisco Javier Álvarez-Martínez ◽  
...  
Keyword(s):  
Olive Oil ◽  
Industrial Process ◽  
Extraction Process ◽  
Quality Indices ◽  
Total Polyphenols ◽  
Before And After ◽  
Remarkable Result ◽  
Wastewater Samples ◽  
By Products ◽  
Olive Mill

The effect of the industrial process and collecting period on produced olive oil and by-products was evaluated. Obtained results showed significant variations for the majority of quality indices before and after vertical centrifugation between all samples from the three collecting periods. All samples were rich in monounsaturated fatty acid: Oleic acid (C18:1) with a maximum of 69.95%. The total polyphenols and individual phenolic compounds varied significantly through the extraction process, with a significant variation between olive oil and by-products. Notably, the percentage of secoiridoids and their derivatives was significant in paste and olive oil, highlighting the activity of many enzymes released during the different extraction steps. Regarding antioxidant capacity, the most remarkable result was detected in olive oil and olive mill wastewater samples.

scholarly journals Olive Mill and Olive Pomace Evaporation Pond’s By-Products: Toxic Level Determination and Role of Indigenous Microbiota in Toxicity Alleviation

2021 ◽  
Vol 11 (11) ◽  
pp. 5131
Author(s):  
Houda Ben Slama ◽  
Ali Chenari Bouket ◽  
Faizah N. Alenezi ◽  
Ameur Khardani ◽  
Lenka Luptakova ◽  
...  
Keyword(s):  
Olive Oil ◽  
Oil Extraction ◽  
Soil Toxicity ◽  
Mediterranean Countries ◽  
Three Phase ◽  
Indigenous Microbiota ◽  
Recalcitrant Waste ◽  
By Products ◽  
Olive Mill

Diverse vegetable oils are extracted from oleagenic trees and plants all over the world. In particular, olive oil represents a strategic socio-economic branch in the Mediterranean countries. These countries use either two or three-phase olive oil extraction systems. In this work, we focus on the by-products from three-phase olive oil extraction, which are the liquid olive mill wastewater (OMW) and the solid olive mill pomace (OMP) rejected in evaporative ponds. The disposal of this recalcitrant waste poses environmental problems such as the death of different species of insects and animals. In-depth ICP-OES analysis of the heavy metal composition of OMW and OMP revealed the presence of many metals ranging from non-toxic to highly toxic. The LC-HRMS characterization of these by-products indicated the presence of several secondary metabolites harmful to humans or to the environment. Thus, we aimed to identify OMW and OMP indigenous microbiota through metagenomics. The bacterial population was dominated by the Acetobacter (49.7%), Gluconobacter (17.3%), Gortzia (13.7%) and Nardonalla (5.3%) genera. The most abundant fungal genera were Nakazawaea, Saccharomyces, Lachancea and Candida. These microbial genera are responsible for OMW, OMP and soil toxicity alleviation.

scholarly journals Bioactive Compounds in Waste By-Products from Olive Oil Production: Applications and Structural Characterization by Mass Spectrometry Techniques

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1236
Author(s):  
Ramona Abbattista ◽  
Giovanni Ventura ◽  
Cosima Damiana Calvano ◽  
Tommaso R. I. Cataldi ◽  
Ilario Losito
Keyword(s):  
Mass Spectrometry ◽  
Olive Oil ◽  
Bioactive Compounds ◽  
Structural Information ◽  
Oil Production ◽  
Economic Problem ◽  
Added Value ◽  
Olive Leaves ◽  
Mediterranean Countries ◽  
By Products

In recent years, a remarkable increase in olive oil consumption has occurred worldwide, favoured by its organoleptic properties and the growing awareness of its health benefits. Currently, olive oil production represents an important economic income for Mediterranean countries, where roughly 98% of the world production is located. Both the cultivation of olive trees and the production of industrial and table olive oil generate huge amounts of solid wastes and dark liquid effluents, including olive leaves and pomace and olive oil mill wastewaters. Besides representing an economic problem for producers, these by-products also pose serious environmental concerns, thus their partial reuse, like that of all agronomical production residues, represents a goal to pursue. This aspect is particularly important since the cited by-products are rich in bioactive compounds, which, once extracted, may represent ingredients with remarkable added value for food, cosmetic and nutraceutical industries. Indeed, they contain considerable amounts of valuable organic acids, carbohydrates, proteins, fibers, and above all, phenolic compounds, that are variably distributed among the different wastes, depending on the employed production process of olive oils and table olives and agronomical practices. Yet, extraction and recovery of bioactive components from selected by-products constitute a critical issue for their rational valorization and detailed identification and quantification are mandatory. The most used analytical methods adopted to identify and quantify bioactive compounds in olive oil by-products are based on the coupling between gas- (GC) or liquid chromatography (LC) and mass spectrometry (MS), with MS being the most useful and successful detection tool for providing structural information. Without derivatization, LC-MS with electrospray (ESI) or atmospheric pressure chemical (APCI) ionization sources has become one of the most relevant and versatile instrumental platforms for identifying phenolic bioactive compounds. In this review, the major LC-MS accomplishments reported in the literature over the last two decades to investigate olive oil processing by-products, specifically olive leaves and pomace and olive oil mill wastewaters, are described, focusing on phenolics and related compounds.

Olive mill wastewater biological treatment by fungi biomass

2007 ◽  
Vol 55 (10) ◽  
pp. 89-97 ◽  
Author(s):  
S. Caffaz ◽  
C. Caretti ◽  
M. Morelli ◽  
C. Lubello ◽  
E. Azzari
Keyword(s):  
Phenolic Compounds ◽  
Olive Oil ◽  
Biological Treatment ◽  
Batch Reactor ◽  
Food Industries ◽  
Olive Mill Wastewaters ◽  
Biomass Activity ◽  
The One ◽  
By Products ◽  
Olive Mill

Olive oil extraction is one of the most important traditional food industries in the Mediterranean region, especially in Italy. In addition to olive oil, this industry produces by-products, in particular olive mill wastewaters (OMWs) and olive husks, which represent a serious environmental problem. OMWs can be rarely treated in a municipal WWTP, using conventional wastewater treatments. A novel biological process has to be considered in order to treat OMWs. Literature data show that yeasts and different kinds of fungi are able to reduce both the organic and the phenolic content of the OMW. The present work is aimed at investigating the growth of a biomass rich in fungi in a batch reactor filled with OMW and its capacity to degrade the organic and phenolic load. The aerobic OMW degradation obtained using this biomass reached a COD and TP removal efficiency of 86 and 70%, respectively. Respirometric tests have been carried out in order to measure the biomass activity on different substrates: OMW and phenolic compounds (gallic and p-coumaric acids). The polyphenolic biodegradation efficiency of fungi biomass was higher than the one of a non-acclimated activated sludge biomass. Fungi biomass was able to completely degrade pure phenolic compounds.

scholarly journals 2-Fazlı Zeytin Pirinasının Değerlendirilmesinde Kurutmanın Önemi

2017 ◽  
Vol 5 (2) ◽  
pp. 103
Author(s):  
Ulaş Baysan ◽  
Mehmet Koç ◽  
Figen Ertekin
Keyword(s):  
Waste Water ◽  
Olive Oil ◽  
Coming Out ◽  
Oil Production ◽  
Phase System ◽  
Olive Pomace ◽  
Olive Mill Waste ◽  
Olive Mill Waste Water ◽  
Mill Waste ◽  
Olive Mill

With starting healthy consumption awareness in people throughout world, olive oil demand has increased and it is expected that this demand will increase day by day. As a result of increase in the demand for olive oil, the rise in amount of olive pomace that emerges after olive oil production is evident. The differences in olive oil production methods result in varied wastes in terms of property and quantity. Olive mill waste water and olive pomace possessing 35-40% moisture come out in 3-phase system while only olive pomace possessing 60-70% moisture comes out in 2-phase system. The quantity and pollution degree of waste water coming out in 3-phase system are considerably high from 2-phase system. Recycling of 2-phase olive pomace containing also olive mill waste water, which is highly harmful for environment and is generally discharged to nature without any treatment, is considerably important by processing. This review gives information about the necessity of drying of olive pomace and related studies with this subject.

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