A green approach to phenolic compounds recovery from olive mill and winery wastes

Tapia-Quirós, Paulina; Montenegro-Landívar, María Fernanda; Vecino, Xanel; Alvarino, T.; Cortina, José Luis; Saurina, Javier; Granados, Mercè; Reig, Mònica

doi:10.1016/j.scitotenv.2022.155552

Cited by 19 publications

(6 citation statements)

References 62 publications

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“…The observed permeance decrease over time is very likely due to membrane fouling (owing to adsorption at the membrane surface), although osmotic pressure effects may also be a relevant factor to consider. The fouling phenomena for nanofiltration of aqueous solutions obtained from olive oil by-products have been previously reported (Tapia-Quiros et al 2022a , 2022b , 2022c , 2022d ). One of the main factors affecting membrane fouling is the polyphenolic concentration which in this work was always maintained particularly high in order to obtain a highly concentrated product and to avoid the necessity of processing large-volume streams.…”

Section: Resultsmentioning

confidence: 72%

“…Tapia-Quirós et al ( 2022b , 2022c ) have proposed an integrated scheme for olive pomace processing, consisting of a preliminary extraction with water followed by sequential membrane-based fractionation steps and a final concentration step using reverse osmosis. The authors highlight that NF membranes allowed to separate between families of polyphenols due to their low rejection for low molecular weight polyphenols (Tapia-Quirós et al 2022d ).…”

Section: Introductionmentioning

confidence: 99%

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Hydroxytyrosol recovery from olive pomace: a simple process using olive mill industrial equipment and membrane technology

Romeu,

Bernardo,

Daniel

et al. 2023

J Food Sci Technol

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In this work, pilot-scale nanofiltration was used to obtain aqueous solutions rich in hydroxytyrosol and tyrosol from olive oil by-products. A large-scale simple process involving olive mill standard machinery (blender and decanter) was used for the olive pomace pre-treatment with water. The aqueous extract was then directly fed to a nanofiltration unit and concentrated by reverse osmosis. Final concentration factors ranged between 7 and 9 for hydroxytyrosol and between 4 and 7 for tyrosol. The final aqueous solution, obtained as retentate stream of reverse osmosis, was highly concentrated in hydroxytyrosol and tyrosol and their concentrations remained stable over at least 14 months.

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Section: Resultsmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Hydroxytyrosol recovery from olive pomace: a simple process using olive mill industrial equipment and membrane technology

Romeu,

Bernardo,

Daniel

et al. 2023

J Food Sci Technol

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“…Agricultural waste is a source of other bioactive compounds with high added value, such as polyphenolic compounds as an example. Polyphenolic compounds have been recovered mainly from distillery stillage [16] and olive mill and winery waste [180], and, due to their antioxidant properties, they find applications in the pharmaceutical, cosmetic, and food industries.…”

Section: Production Of Platform Chemicalsmentioning

confidence: 99%

Agricultural Wastes and Their By-Products for the Energy Market

Zielińska,

Bułkowska

2024

Energies

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The conversion of lignocellulosic agricultural waste into biofuels and other economically valuable compounds can reduce dependence on fossil fuels, reduce harmful gas emissions, support the sustainability of natural resources, including water, and minimize the amount of waste in landfills, thus reducing environmental degradation. In this paper, the conversion of agricultural wastes into biomethane, biohydrogen, biodiesel, bioethanol, biobutanol, and bio-oil is reviewed, with special emphasis on primary and secondary agricultural residues as substrates. Some novel approaches are mentioned that offer opportunities to increase the efficiency of waste valorization, e.g., hybrid systems. In addition to physical, chemical, and biological pretreatment of waste, some combined methods to mitigate the negative effects of various recalcitrant compounds on waste processing (alkali-assisted thermal pretreatment, thermal hydrolysis pretreatment, and alkali pretreatment combined with bioaugmentation) are evaluated. In addition, the production of volatile fatty acids, polyhydroxyalkanoates, biochar, hydrochar, cellulosic nanomaterials, and selected platform chemicals from lignocellulosic waste is described. Finally, the potential uses of biofuels and other recovered products are discussed.

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“…4 It includes a high concentration of phenolic compounds, and so olive pomace has a high polluting organic load and a phytotoxic effect, and this results in a significant environmental hazard. 5,6 Therefore, extraction of phenolic compounds from olive pomace is very important to decrease environmental damage, especially for Mediterranean countries with low-cost sources and with beneficial human physiological actions. 7,8 Conventional solvent extraction (CSE) methods are known to have a low extraction yield and longer extraction time, causes degradation of heat-sensitive phenolic compounds, and consumes high energy.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Mediterranean countries such as Spain, Italy, Greece, Portugal, Greece, and Turkey provide 97% of the total olive oil production in the world and represent a major industry in the region. , Olive pomace, a solid byproduct of olive oil production, is nearly 40% of the total weight of olives being processed in the mill . It includes a high concentration of phenolic compounds, and so olive pomace has a high polluting organic load and a phytotoxic effect, and this results in a significant environmental hazard. , Therefore, extraction of phenolic compounds from olive pomace is very important to decrease environmental damage, especially for Mediterranean countries with low-cost sources and with beneficial human physiological actions. , …”

Section: Introductionmentioning

confidence: 99%

Optimization and Comparison of High-Pressure-Assisted Extraction of Phenolic Compounds from Olive Pomace

Okur

Alpas

2022

ACS Food Sci. Technol.

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In this study, it was aimed to find the optimum condition for extraction of phenolic compounds from olive pomace by using high-pressure-assisted extraction (HPAE). In this method, different pressure parameters (300−500 MPa), times (5−15 min), and ethanol concentrations (50−90% v/v) were used. According to Box−Behnken design, 15 experimental runs were performed to find the optimum condition of total phenolic and oleuropein contents. Also, the optimum HPAE condition was compared with that of classical solvent extraction (CSE). Based on the results, the optimum HPAE condition was chosen as 409 MPa for 11.16 min with 63.74% v/v ethanol concentration. According to ANOVA results, pressure, time, and ethanol concentration had significant effects on the total phenolic content and oleuropein content (p ≤ 0.05). Compared to CSE, it was found that HPAE increased the total phenolic content, antioxidant capacity, and oleuropein content significantly. According to scanning electron microscopy and Fourier transform infrared spectroscopy results, it was found that the mass-transfer rate of phenolic compounds increased because of morphological changes, but there were no chemical changes in phenolic compounds observed when HPAE treatment was applied. Overall, it can be said that HPAE treatment was an effective method to improve the recovery of phenolic compounds from olive pomace compared to the traditional treatment.

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A green approach to phenolic compounds recovery from olive mill and winery wastes

Cited by 19 publications

References 62 publications

Hydroxytyrosol recovery from olive pomace: a simple process using olive mill industrial equipment and membrane technology

Hydroxytyrosol recovery from olive pomace: a simple process using olive mill industrial equipment and membrane technology

Agricultural Wastes and Their By-Products for the Energy Market

Optimization and Comparison of High-Pressure-Assisted Extraction of Phenolic Compounds from Olive Pomace

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