Valorization of Moroccan olive stones by using it in particleboard panels

Abstract

ABSTRACTe main objective of this work was to nd new applications to valorize olive stones (endocarp and seed). In order to improve knowledge on olive stones, the phenolic compounds concentration of three varieties of Moroccan olive trees: Moroccan Picholine, Menara and Haouzian were studied. Olive stones of three varieties were characterized by Fourier Transform Mid Infrared Spectroscopy (FT-MIR). Total phenolic compounds are quanti ed a er solid-liquid extraction by an assay of Folin-Ciocalteu. Moroccan Picholine stones (11.32 mg GAE/g DM) have a higher content of total phenolic compounds than Haouzia stones (4.55 mg GAE/g DM) and Menara stones (3.56 mg GAE/g DM). ermogravimetric analysis indicates that up to 195°C; there is no degradation of the stones.e biocide performance on agar-agar was tested with decay fungi. Biodegradation studies show that the most interesting results are obtained with Moroccan Picholine stones. e presence of Moroccan Picholine in a particleboard panels improves the total resistance of the particleboard panels against both Coriolus versicolor and Coniophora puteana rot fungi.

Multivariate analysis for FTIR in understanding treatment of used cooking oil using activated carbon prepared from olive stone

“…To enhance the quality of used cooking oils, oils should be remediated using various remediating materials such as carbonaceous and inorganic adsorbents [7,10]. Among the variety of different adsorbents is activated carbon, which takes a leading position as an adsorbent for the removal of various toxic pollutants due to its excellent adsorption ability [15][16][17][18][19][20][21][22][23][24][25][26][27]. Activated carbons are known to have a large surface area, polar functional groups, and microporous structure, hence, it is not effective in removing polar substances from used frying oil and does not allow efficient purification.…”

Manufacture and Characterization of Recycled Polypropylene and Olive Pits Biocomposites

“…So far, its main route of valorization is its use as biofuel, due to its high energy content, generating ashes after combustion as a waste [ 17 , 18 ]. Research is currently being carried out on other ways of valorization: (a) in biorefinery, due to its high carbohydrate content [ 19 ], and (b) its incorporation as part of composite materials, such as the materials with which chipboard panels are manufactured [ 20 ]. Figure 1 shows a general overview of those processes involved in obtaining OP, as well as some of the feasible ways to valorize them.…”

Low energy-demanding recovery of antioxidants and sugars from olive stones as preliminary steps in the biorefinery context

“…Concerning the phenolic composition, Fernández-Bolaños et al (1998) identified for the first time tyrosol and hydroxytyrosol as the main phenolic compounds found in the fraction of steamexploded olive stones. Hydroxytyrosol, the most powerful antioxidant in olive fruit, is able to inhibit or delay the rate of growth of a wide range bacteria and microfungi (Elbir et al, 2012). As an interesting approach, partial removal of extractives such as phenolic compounds can offer the double benefit of recovering bioactive products with antioxidant capacity and to reduce the toxicity of the prehydrolyzates, increasing the performance of further bioprocess steps.…”