Enhancing the nutritional and functional properties of pleurotus citrinopileatus mushrooms through the exploitation of winery and olive mill wastes

There is a growing consumer preference for high quality extra virgin olive oil (EVOO) with health-promoting and sensory properties that are associated with a higher content of phenolic and volatile compounds. To meet this demand, several novel and emerging technologies are being under study to be applied in EVOO production. This review provides an update of the effect of emerging technologies (pulsed electric fields, high pressure, ultrasound, and microwave treatment), compared to traditional EVOO extraction, on yield, quality, and/or content of some minor compounds and bioactive components, including phenolic compounds, tocopherols, chlorophyll, and carotenoids. In addition, the consumer acceptability of EVOO is discussed. Finally, the application of these emerging technologies in the valorization of olive mill wastes, whose generation is of concern due to its environmental impact, is also addressed.

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Sustainable biofuels and biochar production from olive mill wastes via co-pyrolysis process

Biomass Conversion and Biorefinery ◽

10.1007/s13399-021-01735-z ◽

2021 ◽

Author(s):

Mohamed Hechmi Aissaoui ◽

Aïda Ben Hassen Trabelsi ◽

Samira Abidi ◽

Kaouther Zaafouri ◽

Khouloud Haddad ◽

...

Keyword(s):

Pyrolysis Process ◽

Olive Mill Wastes ◽

Olive Mill

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Ecophysiology and molecular phylogeny of bacteria isolated from alkaline two-phase olive mill wastes

Research in Microbiology ◽

10.1016/j.resmic.2005.09.010 ◽

2006 ◽

Vol 157 (4) ◽

pp. 376-385 ◽

Cited By ~ 40

Author(s):

Spyridon Ntougias ◽

Georgios I. Zervakis ◽

Constantinos Ehaliotis ◽

Nektarios Kavroulakis ◽

Kalliope K. Papadopoulou

Keyword(s):

Molecular Phylogeny ◽

Two Phase ◽

Olive Mill Wastes ◽

Olive Mill

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Characterization of olive mill wastes composts and their humic acids: stability assessment within different particle size fractions

Environmental Technology ◽

10.1080/09593330.2012.715761 ◽

2013 ◽

Vol 34 (6) ◽

pp. 787-797 ◽

Cited By ~ 13

Author(s):

Saoussan Masmoudi ◽

Raja Jarboui ◽

Hafedh El Feki ◽

Teresa Gea ◽

Khaled Medhioub ◽

...

Keyword(s):

Particle Size ◽

Humic Acids ◽

Stability Assessment ◽

Size Fractions ◽

Particle Size Fractions ◽

Olive Mill Wastes ◽

Olive Mill

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Screening of winery and olive mill wastes for lignocellulolytic enzyme production from Aspergillus species by solid-state fermentation

Biomass Conversion and Biorefinery ◽

10.1007/s13399-013-0100-8 ◽

2013 ◽

Vol 4 (3) ◽

pp. 201-209 ◽

Cited By ~ 15

Author(s):

José Manuel Salgado ◽

Luís Abrunhosa ◽

Armando Venâncio ◽

José Manuel Domínguez ◽

Isabel Belo

Keyword(s):

Solid State ◽

Solid State Fermentation ◽

Enzyme Production ◽

Aspergillus Species ◽

Olive Mill Wastes ◽

Olive Mill

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Potential for Production of Biochar-Based Fertilizers from Olive Mill Waste in Mediterranean Basin Countries: An Initial Assessment for Spain, Tunisia, and Greece

Sustainability ◽

10.3390/su12156081 ◽

2020 ◽

Vol 12 (15) ◽

pp. 6081 ◽

Cited By ~ 1

Author(s):

Evan A.N. Marks ◽

Vasiliki Kinigopoulou ◽

Hanene Akrout ◽

Ahmed Amine Azzaz ◽

Charalampos Doulgeris ◽

...

Keyword(s):

Total Mass ◽

Hydrothermal Carbonization ◽

Thermal Conversion ◽

Application Rate ◽

Solid Wastes ◽

Initial Assessment ◽

Olive Mill Waste ◽

Olive Mill Wastes ◽

Mill Waste ◽

Olive Mill

Olive mill wastes continue to be a management challenge due to the large volumes produced, particularly due to their toxicity and impacts on the environment. Thermal conversion through pyrolysis or hydrothermal carbonization techniques can detoxify wastes while conserving nutrient contents. In this work, we produced up-to-date data on olive mill waste flows in Spain, Tunisia, and Greece and characterized representative samples in the laboratory. Assays of thermal conversion of olive mill wastewaters and solid wastes were also performed to understand biochar yields and final properties, and the total quantities of nutrients contained were estimated. Of particular note were the quantities of potassium in Tunisian wastewaters, representing 0.6% of the total mass and an annual flow of approximately 5000 t, and in the Spanish solid wastes, an average of 1.7% of the total mass is potassium, representing an annual flow of approximately 23,000 t. Concerning phosphorus, Spanish solid wastes had the highest contents (0.1%), double that of other countries’ wastes. Annually, olive mill wastes from the three countries are estimated to contain approximately 35 × 103 tons of potassium and 2.6 × 103 tons of phosphorus. With this resource converted to biochar, each year more than 700 km2 of soils could be enriched in 0.2% carbon with biochar at an application rate of 7 t ha−1.

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