scholarly journals Batch Membrane Treatment of Olive Vegetation Wastewater from Two-Phase and Three-Phase Olive Oil Production Processes by Threshold Flux Based Methods

2012 ◽  
Vol 44 ◽  
pp. 2015-2016
Author(s):  
J.M. Ochando-Pulido ◽  
M. Stoller ◽  
M. Bravi ◽  
A. Martinez-Ferez ◽  
A. Chianese
Keyword(s):  
Olive Oil ◽  
Oil Production ◽  
Two Phase ◽  
Production Processes ◽  
Three Phase ◽  
Membrane Treatment

Batch membrane treatment of olive vegetation wastewater from two-phase olive oil production process by threshold flux based methods

2012 ◽  
Vol 101 ◽  
pp. 34-41 ◽  
Author(s):  
J.M. Ochando-Pulido ◽  
M. Stoller ◽  
M. Bravi ◽  
A. Martinez-Ferez ◽  
A. Chianese
Keyword(s):  
Olive Oil ◽  
Production Process ◽  
Oil Production ◽  
Two Phase ◽  
Membrane Treatment

scholarly journals Türkiye’deki Zeytinyağı İşletmelerinin Üretim Süreçleri ve Kapasite Kullanımları Açısından Değerlendirilmesi

2017 ◽  
Vol 5 (7) ◽  
pp. 724 ◽  
Author(s):  
Selda Murat Hocaoglu ◽  
İrfan Baştürk ◽  
Betül Hande Gürsoy Haksevenler ◽  
Cihangir Aydöner
Keyword(s):  
Olive Oil ◽  
Capacity Utilization ◽  
Extraction Process ◽  
Utilization Rate ◽  
Two Phase ◽  
Three Phase ◽  
Data Assessment ◽  
The Status ◽  
Olive Oil Mills ◽  
Phase Systems

In this study, a survey and data assessment has been made to clarify the status of olive oil mills which operate in Turkey. According to the study, there have been around 1000 commercial olive oil mills that mostly small and medium-sized and about 1 million tons of olives at these mills have been processed in our country seasonally and total maximum capacity of the olive oil mills was estimated to be about 5 million tons of olive oil. The average capacity utilization rate of the sector is also around 20%. About 71% of olive oil mills have three-phase decanter, 27% of them have two-phase decanter and 2% are operated as press extraction process. On the other hand, 78% of three -phase decanters used in olive oil mills can easily convert to 2-phase systems without loss of capacity and efficiency, but only 2% of them cannot be convert to two-phase systems. Approximately 89% of the olive oil mills are stored the olive oil mill wastewater in the evaporation lagoons.

Determinant factors of olive oil stability, phenolic content and antioxidant capacity

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jessica Maalouf ◽  
Jennifer C. Tomazou ◽  
Stephanie Azar ◽  
Christelle Bou-Mitri ◽  
Jacqueline Doumit ◽  
...  
Keyword(s):  
Prediction Model ◽  
Antioxidant Capacity ◽  
Olive Oil ◽  
Phenolic Content ◽  
Stability Index ◽  
Total Phenolic ◽  
Two Phase ◽  
Content Type ◽  
Three Phase ◽  
The Individual

Purpose This study aims to identify the effect of selected agro-industrial factors associated with the olive oil phenolic composition, total phenolic content (TPC), antioxidant capacity and oxidative stability index (OSI). The study also aims to assess the relationship between the quality indices and each of the individual phenol, TPC, antioxidant capacity and OSI. Design/methodology/approach Olive oil samples (n=108) were collected from Lebanese northern (Akkar and Zgharta-Koura) and southern (Hasbaya and Jezzine) regions, at three harvesting times (early, intermediate, late) and using different types of mills (traditional, sinolea, two- and three-phase decanters). The samples were analyzed using official standard methods. Findings The highest TPC, antioxidant capacity and OSI were obtained in early harvested olive oil, using two-phase decanters for TPC and three-phase decanters for antioxidant capacity and OSI. A prediction model, including the free acidity, K232, TPC, C18:2, C18:0, tyrosol and apigenin, was obtained; it allowed to predict very highly significantly the OSI (p < 0.001). Apigenin, tyrosol and C18:2 recorded the highest standardized coefficients (ß^+= 0.35) and thus had the highest influence on OSI. As per antioxidant capacity of olive oil, another very highly statistically significant prediction model was constructed (p < 0.001). It included only two predictors, oleacein and TPC, with the latter having the most influence (ß^+= 0.37). Originality/value The overall results highlighted the detrimental effects of agro-industrial factors on olive oil chemical composition, and this contributes significantly to improve olive oil’s quality and characteristics, which are important for the product economical and nutritional values.

Effect of oxygen reduction during malaxation on the quality of extra virgin olive oil (Cv. Carboncella) extracted through “two-phase” and “three-phase” centrifugal decanters

LWT ◽  
2014 ◽  
Vol 59 (1) ◽  
pp. 163-172 ◽  
Author(s):  
Gianni Pastore ◽  
Antonio D'Aloise ◽  
Sabrina Lucchetti ◽  
Mariateresa Maldini ◽  
Elisabetta Moneta ◽  
...  
Keyword(s):  
Olive Oil ◽  
Oxygen Reduction ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Two Phase ◽  
Three Phase ◽  
Effect Of Oxygen

Innovative method for recovery and valorization of hydroxytyrosol from olive mill wastewaters

2016 ◽  
Vol 74 (1) ◽  
pp. 73-86 ◽  
Author(s):  
A. Bonetti ◽  
S. Venturini ◽  
A. Ena ◽  
C. Faraloni
Keyword(s):  
Olive Oil ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Omega 3 ◽  
Working Process ◽  
Two Phase ◽  
Three Phase ◽  
Olive Mill Wastewaters ◽  
Anti Oxidant ◽  
Technical Simplicity

The nutritional properties of olive oil can be attributed to its oleic acid and phenolic compounds content, acting as natural oxidants to prevent human diseases. In particular, hydroxytyrosol has an anti-inflammatory action similar to omega 3 fatty acids from fish oil. The olive oil production was conducted by two extraction procedures: first, a two-phase extraction giving extra-virgin olive oil and humid pomace, second, a three-phase working process of humid pomace, obtaining another minimum quantity of extra-virgin olive oil, ‘dry’ pomace devoid of polyphenols, and mill wastewaters rich in anti-oxidant compounds. The aim of this processing was to employ water to extract the highest concentration of polyphenols from humid pomace and convey them in oil mill wastewaters for extraction. Processed olives were 37,200 kg, pomace deprived of polyphenols was equal to 20,400 kg and processing was performed with 500 kg of olives per hour. This method offers advantages of using cheap equipment and technical simplicity.

scholarly journals Especialización olivarera, cambios institucionales y desigualdad agraria en la Alta Campiña de Córdoba (siglos XVIII-XX)

2017 ◽  
Vol 73 ◽  
pp. 185-220
Author(s):  
Antonio López-Estudillo ◽  
Keyword(s):  
Olive Oil ◽  
Agricultural Production ◽  
Oil Production ◽  
Ancien Regime ◽  
Surrounding Area ◽  
Property Distribution ◽  
Production Processes ◽  
Agricultural Surplus ◽  
Ancien Régime

This article examines from several angles the evolution of inequality since the end of the Ancien Regime in a rural Andalusian village. Our research is mainly based on fiscal sources, aided by data from private accounting registries, land registry documents, texts from agrarian engineers, etc. The transformation of rural spaces and of local agricultural production is discussed first. Second, the evolution of property distribution, agricultural surplus and income are addressed. Last of all, this study explains the inequality effects derived from both socio-institutional transformations begun during the crisis of the Ancien Regime and specialization in wine or olive oil production –combined with intensification in other types of production processes– that took place in Aguilar and the surrounding area much earlier than in the rest of Cordoba Province.

scholarly journals Utilization of Olive Oil Processing Waste Composts in Organic Tomato Seedling Production

Agronomy ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 797 ◽  
Author(s):  
Yüksel Tüzel ◽  
Kamil Ekinci ◽  
Gölgen Bahar Öztekin ◽  
İbrahim Erdal ◽  
Nurhan Varol ◽  
...  
Keyword(s):  
Olive Oil ◽  
Wastewater Sludge ◽  
Solid Wastes ◽  
Two Phase ◽  
Sludge Compost ◽  
Three Phase ◽  
Growing Medium ◽  
Oil Wastewater ◽  
Olive Oil Wastewater ◽  
Olive Mill

Olive oil byproducts show differences according to the olive oil extraction systems, which are called olive mill solid wastes, olive oil wastewater and olive oil wastewater sludge. Three different kinds of composts, including two-phase and three-phase olive mill solid wastes, and olive oil wastewater sludge were produced with separated dairy manure, poultry manure, and straw. The composts obtained from two-phase and three-phase olive mill solid wastes and olive oil wastewater sludge were named as two-phase, three-phase, and water sludge composts, respectively. They were separately enriched by rock phosphate and potassium salt. These composts were mixed with peat in a ratio of 0%, 25%, 50%, 75%, and 100% (v/v). Tomato seeds were sown in all mixtures on 3 February 2016. All the seeds were sown into 2 trays and each plug included 2 replicates. The trays were left in a germination room for 3 days, then moved to a heated greenhouse which is specialized for growing seedlings, and the seedlings were grown there for 3 weeks. The results showed that increasing compost ratios in the growing medium and also the enrichment of the growing medium increased organic matter content, electrical conductivity, and macro and micro nutrient concentrations. The germination period lasted longer with increasing compost ratios. The shoot length was lower at a compost ratio of over 50% excluding water sludge compost, which reacted to over 75%. The highest plant dry weights were obtained in the plants grown on the media with compost ratios of 50%, 25%, and 25% for water sludge compost, enriched two-phase compost, and enriched three-phase compost, respectively. We concluded that the composts obtained from two-phase and three-phase olive mill solid wastes and olive oil waste water sludge can be used without any need of enrichment and a ratio of 25% was found appropriate in most of the measured properties.

The generated power of multipole induction generator with secondary winding on the stator

2009 ◽  
Vol 25 (25) ◽  
pp. 31-34
Author(s):  
Guntis Diļevs ◽  
Edgars Jakobsons
Keyword(s):  
Rotation Speed ◽  
Induction Generator ◽  
Two Phase ◽  
Three Phase ◽  
Secondary Winding

The generated power of multipole induction generator with secondary winding on the statorThis paper posses the construction of induction generator, which has the ability to operate at a low rotation speed. This generator can be applied for directly driven turbine without using the gearbox. The generator is multi pole with all of the windings placed on the stator. Rotor is tooth-like and has no windings on it. Primary winding is three phase, secondary winding is two phase.

Bioethanol production from thermochemically pre-treated olive mill solid residues using the yeast Pachysolen tannophylus

2013 ◽  
Vol 14 (2) ◽  
pp. 118-124 ◽  
Keyword(s):  
Olive Oil ◽  
Ethanol Yield ◽  
Solid Residue ◽  
Residual Oil ◽  
Edible Fungi ◽  
Pachysolen Tannophilus ◽  
Three Phase ◽  
Different Types ◽  
Pre Treatment ◽  
Olive Mill

Olive oil mill solid residue (OMSR) is the solid waste generated during olive oil production process in three-phase olive mills. It consists of the remaining pulp of olive processing after the extraction of oil, as well as the cracked seeds of the olive fruits, containing thus mainly lignocellulose and residual oil. The commonly used practice for OMSR management is combustion, after having extracted the residual oil by secondary extraction using organic solvents. Other proposed ways of OMSR management are their exploitation as substrate for edible fungi production and compost, and as feedstock for biofuels generation such as methane and bioethanol. In the latter case, the complex carbohydrates (cellulose and hemicellulose) of the lignocellulose of OMSR have to be degraded towards their simple sugars and further fermented via microorganisms. The purpose of the present study was to investigate the effect of thermochemical pre-treatment of OMSR, on the final ethanol yield from the yeast Pachysolen tannophilus. Nine different types of OMSR-based substrates were tested i.e. raw OMSR, hydrolysates generated from pretreated OMSR with NaOH (0.5 %, 1.5 % w/v) and H2SO4 (0.5 %, 1.5 % v/v), and pretreated OMSR with NaOH (0.5 %, 1.5 % w/v) and H2SO4 (0.5 %, 1.5 % v/v) whole biomass. It was shown that in all cases pretreatment enhanced the consumption of carbohydrates as well as ethanol final yields.

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