Browsing by Author "Chamkha, Mohamed"
Now showing items 1-20 of 33
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Advances in polyhydroxyalkanoate (PHA) production from renewable waste materials using halophilic microorganisms: A comprehensive review
( Elsevier , 2025 , Article)Polyhydroxyalkanoates (PHAs) are biodegradable and biocompatible polymers that can replace conventional plastics in different sectors. However, PHA commercialization is hampered due to their high production cost resulting ... -
Anaerobic Digestion of Olive MillWastewater and Process Derivatives—Biomethane Potential, Operation of a Continuous Fixed Bed Digester, and Germination Index
( MDPI , 2023 , Article)Olive mill wastewater (OMW) management is an economic and environmental challenge for olive oil-producing countries. The recovery of components with high added value, such as antioxidants, is a highly researched approach ... -
Biochar from olive mill solid waste as an eco-friendly adsorbent for the removal of polyphenols from olive mill wastewater
( Elsevier , 2022 , Article)In Tunisia, olive mill waste water (OMW) is discharged into evaporation ponds where they turn into solid waste (OMSW) and become a serious threat to the environment. This paper addresses for the first time how to valorize ... -
Biodegradation of hydrocarbons and biosurfactants production by a newly halotolerant Pseudomonas sp. strain isolated from contaminated seawater
( Elsevier , 2021 , Article)A strain NAPH6 of Pseudomonas aeruginosa, isolated from contaminated seawater taken from the fishing harbor of Sfax, Tunisia, was able to degrade almost completly the naphthalene (200 mg/l) and the aliphatic hydrocarbons ... -
Comparative study of the effect of oleuropein and hydroxytyrosol rich extracts on the reproductive toxicity induced by bisphenol A in male rats: biochemical, histopathological, and molecular analyses
( Springer , 2023 , Article)Bisphenol A, or BPA, goes into the composition of a large number of products including sunglasses, infant’s feeding bottles, receipts, or food packaging. Nowadays, there is a growing evidence that BPA may be at the origin ... -
Differential Proteome Profiling Analysis under Pesticide Stress by the Use of a Nano-UHPLC-MS/MS Untargeted Proteomic-Based Approach on a 3D-Developed Neurospheroid Model: Identification of Protein Interactions, Prognostic Biomarkers, and Potential Therapeutic Targets in Human IDH Mutant High-Grade Gliomas
( American Chemical Society , 2023 , Article)High-grade gliomas represent the most common group of infiltrative primary brain tumors in adults associated with high invasiveness, agressivity, and resistance to therapy, which highlights the need to develop potent drugs ... -
Effect of mild salinity stress on the growth, fatty acid and carotenoid compositions, and biological activities of the thermal freshwater microalgae Scenedesmus sp.
( MDPI , 2020 , Article)Carotenoids have strong antioxidant activity as well as therapeutic value. Their production has been induced in algae under stressful culture conditions. However, the extreme culture conditions lead to the Programmed Cell ... -
Effects of microplastics’ physical and chemical properties on aquatic organisms: State-of-the-art and future research trends
( Elsevier , 2023 , Article)Microplastics (MPs) pose a global threat to marine ecosystems, little is known about the factors that influence their bioavailability. Microplastics have the ability to adsorb contaminants from the environment, as well as ... -
Extraction optimization using response surface methodology and evaluation of the antioxidant and antimicrobial potential of polyphenols in Scenedesmus sp. and Chlorella sp.
( Springer Science and Business Media Deutschland GmbH , 2023 , Article)Microalgae are considered natural alternatives to replace synthetic antioxidants. The extraction of polyphenols from Scenedesmus sp. and Chlorella sp. was optimized by employing a central composite design. The effect of ... -
Hepatoprotective Effect of Oleuropein-Rich Extract from Olive Leaves against Cadmium-Induced Toxicity in Mice
( Hindawi , 2020 , Article)Cadmium (Cd) is a harmful pollutant which mainly affects the liver and kidney. In this work, we investigated the hepatoprotective effects of olive leaf extract based on oleuropein against hepatic cadmium toxicity in mice. ... -
Hydrocarbon biodegradation by strain BSP4 isolated from a wastewater treatment plant: insights into rhamnolipid production and characterization
( Springer Nature , 2025 , Article)The present study aims to assess the environmental application potential of a rhamnolipid-producing strain, designated BSP4, from a wastewater treatment plant. BSP4 was identified with a high similarity of 99.74% by 16S ... -
Investigation on the effect of several parameters involved in the biodegradation of polyethylene (PE) and low-density polyethylene (LDPE) under various seawater environments
( Elsevier , 2024 , Article)This work investigates the biodegradation of polyethylene (PE) and low-density polyethylene (LDPE) and the leaching of their harmful additives. Micro/macro-plastics of both types were subjected to different laboratory-controlled ... -
Isolation and characterization of a newly naphthalene degrading Halomonas pacifica, strain Cnaph3: biodegradation and biosurfactant production studies
( Springer Verlag , 2020 , Article)A newly marine Halomonas pacifica strain Cnaph3 was isolated, as a naphthalene degrader and biosurfactant producer, from contaminated seawater collected in Ataya's fishing harbor, located in Kerkennah Islands, Tunisia. ... -
A jojoba (Simmondsia chinensis) seed cake extracts express hepatoprotective activity against paracetamol-induced toxicity in rats
( Elsevier , 2022 , Article)This study aimed to investigate the hepatoprotective activity of jojoba seed cake extracts against an acute paracetamol (PC) intoxication. Two aqueous extracts from jojoba (Simmondsia chinensis) seed cake, a simmondsin-rich ... -
Methane production enhancement from Tetraselmis biomass co-digestion using frying oil residue as co-substrate and ultrasonication as pretreatment
( Elsevier , 2023 , Article)Tetraselmis sp. microalgae biomass co-digestion with frying oil residue was investigated without or with an ultrasonication pretreatment to enhance methane production. Interestingly, compared to untreated Tetraselmis ... -
Microbial diversity in polyextreme salt flats and their potential applications
( Springer , 2024 , Book Review)Recent geological, hydrochemical, and mineralogical studies performed on hypersaline salt flats have given insights into similar geo-morphologic features on Mars. These salt-encrusted depressions are widely spread across ... -
Microbiological and physicochemical quality enhancement of treated wastewater using raw and chemically modified clays from Sidi Bouzid region, Tunisia
( Elsevier Inc. , 2023 , Article)Environmental discharge of wastewater represents a source of chemical and biological pollutants. This study firstly evaluates the microbiological and physicochemical quality of treated wastewaters collected from two ... -
A novel bioprocess combining anaerobic co-digestion followed by ultra-filtration and microalgae culture for optimal olive mill wastewater treatment
( Elsevier , 2022 , Article)Treatment of olive mill wastewater (OMW) has received considerable research globally due to its influence on the technical, economic, and environmental sustainability of wastewater biogas production. This work presents a ... -
Olive oil by‑product’s contribution to the recovery of phenolic compounds from microalgal biomass: biochemical characterization, anti‑melanogenesis potential, and neuroprotective effect
( Springer , 2022 , Article)Recently, the use of microalgae in the treatment of olive mill wastewater as a safe method for reducing pollutants has gained more attention. However, the contribution of such by-product to the improvement of the pharmacological ... -
Optimizing the Extraction Conditions of Hydroxytyrosol from Olive Leaves Using a Modified Spherical Activated Carbon: A New Experimental Design
( Hindawi , 2022 , Article)The purification of hydroxytyrosol from olive leaves extract by modified activated carbon was studied experimentally in a batch system and a column by adsorption and desorption processes. The extraction yield reached 90% ...
