References of "Fauconnier, Marie-Laure"
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See detailDetermination of Physico-biochemical Proprieties and Composition in Volatile Constituents by Solid Phase Micro-extraction of Honey Samples from Different Botanical and Geographical Origins in Morocco
Hafida, Hanine; Fauconnier, Marie-Laure ULiege; Kenne Kemene, Tierry ULiege et al

in Journal of Apicultural Research (in press)

There is a very few information available on the physicochemical proprieties and biochemical composition of the honey commercially available which are truly endangered in Morocco. None of the studied ... [more ▼]

There is a very few information available on the physicochemical proprieties and biochemical composition of the honey commercially available which are truly endangered in Morocco. None of the studied honey is available for commercial purposes, which is the main interest and novelty of this study. The aim of this work is to characterize and classify 47 honey samples collected from different localities in Morocco and to compare them with 2 foreign samples honey from Ghana and France, based on their physicochemical proprieties, phenolic contents, radical scavenging activity and volatile compounds by SPME-GC/MS were used to evaluate the quality and cluster all honey samples. Variance analysis revealed highly significant differences between samples (p<0.05). Monofloral honey was characterized by the higher concentration of proline (292.77±13.30). Mutifloral honey from France showed higher amounts of diastase (17.50±1.80) than other compounds, while eucalyptus honey had higher amount of HMF (105.14±3.7) than the others multifloral honey from Ghana honey showed higher content of phenol total (149.31±0.41) mg GAE/100g and flavonoids content (58.28±2.6mgRu/100g) than carotenoids (40.76±0.7) mg Eβ- carotene/100g). Thyme honey showed the higher phenol content (70.97±1.35) mg GAE/100g, flavonoids content (47.18±2.43) mg ERu /100g) and carotenoids content (74.94±3.08mEβ-carotene) than other monofloral honey and glucose honey examined. The principal components analysis (PCA) was performed in order to classify honey samples and identify the most discriminant parameters. Lastly, using ANOVA and correlations for all parameters, significant differences between diverse types of honey were examined. Biochemical and SPME/GC/MS methods were used to propose a complementary approach for honey classification. [less ▲]

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See detailIs it possible to predict the odor of a molecule on the basis of its structure?
Genva, Manon ULiege; Kenne Kemene, Tierry ULiege; Deleu, Magali ULiege et al

in International Journal of Molecular Sciences (in press)

The olfactory sense is the dominant sensory perception for many animals. When Richard Axel and Linda Buck received in 2004 the Nobel Prize for discovering the G-protein coupled receptors role in olfactory ... [more ▼]

The olfactory sense is the dominant sensory perception for many animals. When Richard Axel and Linda Buck received in 2004 the Nobel Prize for discovering the G-protein coupled receptors role in olfactory cells, it highlighted the importance of olfaction to scientific community. Several theories tried to explain how cells are able to distinguish such a wide variety of odorant molecules in a complex context in which enantiomers can result in completely different perceptions and structurally different molecules in the same one. Moreover, sex, age, cultural origin and individual differences contribute to odor perception variations that complicate the picture. Recent advances in olfaction theory will be presented and future trends in human olfaction like structure-based odor prediction or artificial sniffing will be discussed at the frontiers of chemistry, physiology, neurobiology and machine learning. [less ▲]

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See detailEncapsulation of essential oils for the development of biosourced pesticides with controlled release: a review
Maes, Chloé ULiege; Bouquillon, Sandrine; Fauconnier, Marie-Laure ULiege

in Molecules (2019), 24(Special Issue "Essential Oils in Weed Control and Food Preservation"), 2539

Essential oil (EO) encapsulation can be carried out via a multitude of techniques depending on applications. Because of EOs biological activities, development of biosourced pesticides with EOs ... [more ▼]

Essential oil (EO) encapsulation can be carried out via a multitude of techniques depending on applications. Because of EOs biological activities, development of biosourced pesticides with EOs encapsulation is of great interest. A lot of methods had been developed; they are presented in this review together with the properties of the final products. Encapsulation conserves and protects EOs from outside aggression, but also allows for controlled release, which is useful for applications in agronomy. The focus is on matrices that are of interest for the controlled release of their content: alginate, chitosan and cyclodextrin. Those three matrices are used with several methods to create EOs encapsulation with different structures, capacities and release profiles. [less ▲]

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See detailProjet AGROSENSOR
Fauconnier, Marie-Laure ULiege

Article for general public (2019)

Le projet AGROSENSOR vise à mettre au point de nouveaux capteurs de gaz innovants utilisant des matériaux sensibles à base de polymères à empreinte moléculaire (MIP) qui permettraient le développement ... [more ▼]

Le projet AGROSENSOR vise à mettre au point de nouveaux capteurs de gaz innovants utilisant des matériaux sensibles à base de polymères à empreinte moléculaire (MIP) qui permettraient le développement d’outils de diagnostic rapide dans le domaine agroalimentaire. La détection de gaz spécifiques indicateurs d’anomalie (composés organiques volatils marqueurs) permet en effet de détecter plus rapidement des problèmes (contamination fongique, apparition d’odeurs indésirables, etc…) sans passer par des méthodes d’analyse complexes. Il s’agit d’une technologie innovante et les applications potentielles sont très nombreuses tout comme les secteurs potentiellement demandeurs de tels dispositifs : détection précoce de maladies post-récolte pour les céréales, fruits et légumes stockés en vrac, détection précoce de la présence d’insectes dans des denrées stockées, détection précoce de maladies au champ, suivi phytosanitaire de denrées lors des transports (containers intelligents), etc… [less ▲]

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See detailEssentielles les huiles ?
Fauconnier, Marie-Laure ULiege; Dupuis, Henri

Article for general public (2019)

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See detailToxicité du muguet
Fauconnier, Marie-Laure ULiege

Speech/Talk (2019)

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See detailRosmarinus officinalis essential oil as an effective antifungal and herbicidal agent
Ben Kaab, Sofiène ULiege; Bettaieb Rebey, Iness ULiege; Hanafi, Marwa ULiege et al

in Spanish Journal of Agricultural Research (2019)

In order to reduce the use of chemical pesticides, great interest has been focused on environment-friendly biological control agents and botanicals that preserve biodiversity. In this context, our study ... [more ▼]

In order to reduce the use of chemical pesticides, great interest has been focused on environment-friendly biological control agents and botanicals that preserve biodiversity. In this context, our study aimed to assess the antifungal and herbicidal activities of Rosmarinus officinalis essential oil (EO) to find an alternative to synthetic pesticides. The chemical composition of R. officinalis essential oil was determined by gaz chromatography-mass spectrometry analysis (GC-MS). Results showed that R. officinallis EO was rich in monoterpenes and the major constituents were 1,8-cineole (54.6%), camphor (12.27%) and α-pinene (7.09%). However, under laboratory condition, two tests were carried out. The first one consisted on the study of EO antifungal activity using ELISA microplates and the second one consisted on evaluating the effect of EO on seedling growth of weeds. It was confirmed that this EO significantly inhibits spore germination of Fusarium oxysporum, Fusarium culmorum, Penicillium italicum and at 6 mM, the percentage of inhibition reached 100% on Fusarium oxysporum. Indeed, EO slows down seedling growth of Trifolium incarnatum, Silybum marianum, and Phalaris minor. In fact, EO at 5 mM completely inhibits seed germination. On the other hand, another experiment was carried out to evaluate the herbicidal activity by spraying EO on weeds. This showed that a novel herbicide formulation was set up for the first time to improve the activity of R. officinalis EO on post-emergence. Overall, R. officinalis EO can be suggested as a potential eco-friendly pesticide and suitable source of natural compounds potentially usable as natural pesticides. [less ▲]

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See detailEtude de composés organiques volatils (COVs) émis lors de l'interaction hôte - pathogène par des souches produisant des mycotoxines.
Josselin, Laurie ULiege; De Boevre, Marthe; De Clerck, Caroline ULiege et al

Poster (2019, April 03)

Method for the qualitative detection (SPME) of VOCs emitted by toxigenic (mycotoxin-producing) and non-toxigenic (non mycotoxin-producing) strains.

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See detailCharacterization and discrimination of Chinese marinated pork hocks by volatile compound profiling using solid phase microextraction gas chromatography-mass spectrometry/olfactometry, electronic nose and chemometrics
Han, Dong ULiege; Mi, Si; Zhang, Chun ULiege et al

in Molecules (2019), 24(7), 1385

The primary aim of this study was to investigate volatile constituents for the differentiation of Chinese marinated pork hocks from four local brands, Dahongmen (DHM), Daoxiangcun (DXC), Henghuitong (HHT ... [more ▼]

The primary aim of this study was to investigate volatile constituents for the differentiation of Chinese marinated pork hocks from four local brands, Dahongmen (DHM), Daoxiangcun (DXC), Henghuitong (HHT) and Tianfuhao (TFH). To this end the volatile constituents were evaluated by gas chromatography-mass spectrometry/olfactometry (GC-MS/O), electronic nose (E-nose) and chemometrics. A total of 62 volatile compounds were identified and quantified in all pork hocks, and 24 of them were considered as odour-active compounds because their odour activity values (OAVs) were greater than 1. Hexanal (OAV at 3.6–20.3), octanal (OAV at 30.3–47.5), nonanal (OAV at 68.6–166.3), 1,8-cineole (OAV at 36.4–133.3), anethole (OAV at 5.9–28.3) and 2-pentylfuran (OAV at 3.5–29.7) were the key odour-active compounds contributing to the integral flavour of the marinated pork hocks. According to principal component analysis (PCA) and partial least squares-discriminant analysis (PLS-DA) of GC-MS/O and E-nose data, the results showed that the marinated pork hocks were clearly separated into three groups: DHM, HHT, and DXC-TFH. Nine odour-active compounds, heptanal, nonanal, 3-carene, D-limonene, -phellandrene, p-cymene, eugenol, 2-ethylfuran and 2-pentylfuran, were determined to represent potential flavour markers for the discrimination of marinated pork hocks. This study indicated the feasibility of using GC-MS/O coupled with the E-nose method for the differentiation of the volatile profile in different brands of marinated pork hocks. [less ▲]

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See detailOptimization of ultrasonic-microwave synergistic extraction of flavonoids from sweet potato leaves by response surface methodology
Mu, Tai-Hua; Sun, Hongnan; Liu, Jiang et al

in Journal of Food Processing and Preservation (2019)

Ultrasonic–microwave synergistic extraction was used to extract flavonoids from sweet potato leaves (SPL) by response surface methodology. The optimal conditions for flavonoids extraction were 1:40 (g/ml ... [more ▼]

Ultrasonic–microwave synergistic extraction was used to extract flavonoids from sweet potato leaves (SPL) by response surface methodology. The optimal conditions for flavonoids extraction were 1:40 (g/ml) of solid–liquid ratio, 57°C of extraction temperature, 76 s of extraction time, and 72% (v/v) ethanol for 2 times, the highest extraction efficiency was 91.65 ± 3.37%. After purification, the flavonoids purity reached to 76.10 ± 3.11 (%, DW). The result of high‐performance liquid chromatography revealed 11 compounds including astragalin (473.8 ± 7.3 mg/g, DW), quercetrin (86.5 ± 0.7 mg/g, DW), 4,5‐chlorogenic acid (76.4 ± 0.5 mg/g, DW), isoquercitrin (62.4 ± 0.4 mg/g, DW), tiliroside (18.8 ± 0.3 mg/g, DW), quercetin (12.5 ± 0.2 mg/g, DW), 3,4,5‐chlorogenic acid (6.5 ± 0.2 mg/g, DW), caffeic acid (6.1 ± 0.2 mg/g, DW), kaempferol (6.0 ± 0.2 mg/g, DW), myricetrin (5.9 ± 0.1 mg/g, DW), and rhamnetin (4.3 ± 0.1 mg/g, DW) in sweet potato leaf flavonoids, which possessed good antioxidant activity compared to soy isoflavones, ginkgo biloba extract, and propolis flavone. The IC50 value of sweet potato leaf flavonoids was 13.26 ± 0.09 μg/ml in ferric reducing antioxidant power and 5.41 ± 0.21 in 2, 2′‐azino‐bis(3‐ethylbenzothiazoline‐ 6‐sulphonic acid) scavenging capacity, respectively. [less ▲]

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See detailEpoxiconazole exposure affects terpenoid profiles of oilseed rape plantlets based on a targeted metabolomic approach
Durenne, Bastien ULiege; Blondel, Alodie; Druart, Philippe et al

in Environmental Science and Pollution Research (2019)

Epoxiconazole is a broad-spectrum fungicide described as highly persistent in soil and as such can be considered as an abiotic agent like other problematic agrochemicals. Furthermore, the plant ... [more ▼]

Epoxiconazole is a broad-spectrum fungicide described as highly persistent in soil and as such can be considered as an abiotic agent like other problematic agrochemicals. Furthermore, the plant phenotyping tool involving non-invasive monitoring of plant-emitted volatile organic compounds (VOCs) may be useful in the identification of metabolic markers for abiotic stress. We therefore decided to profile the VOCs from secondary metabolism of oilseed rape through a dose-response experiment under several epoxiconazole concentrations (0, 0.01, 0.1 and 1 mg L−1). VOC collections of 35-day-old whole plantlets were performed through a dynamic headspace sampling technique under defined and controlled conditions. The plantlets grew freely within a home-made, laboratory and high-throughput glass chamber without any disturbance. Putative metabolic markers were analysed using a targeted metabolomic approach based on TD-GC-MS method coupled with data acquisition in SIM mode in order to focus on terpenes and sulphur-containing volatiles. Chromatograms of emitted terpenes were achieved accurately for the 35-day-old oilseed rape plantlets. We also analysed the presence of sulphur-containing volatiles in samples of shoot and root tissues using an innovative DHS-TD-GC-MS method, but no difference was found between qualitative profiles. Nevertheless, we demonstrated through this experiment that sesquiterpenes such as β-elemene and (E,E)-α-farnesene are involved in epoxiconazole dose-response. In particular, (E,E)-α-farnesene could serve as a metabolic marker of fungicide exposure for oilseed rape plantlets. [less ▲]

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See detailStress-related accumulation of arabidopsides: impact on chloroplast membranes
Genva, Manon ULiege; Deleu, Magali ULiege; Andersson, M.X. et al

Poster (2019, April)

Oxylipins are crucial agents in plant defense mechanisms. While free oxylipins are well studied, roles of esterified oxylipins remain unclear. Esterified oxylipins are structurally diverse metabolites ... [more ▼]

Oxylipins are crucial agents in plant defense mechanisms. While free oxylipins are well studied, roles of esterified oxylipins remain unclear. Esterified oxylipins are structurally diverse metabolites that were found in diverse plant species, suggesting that those may be more ubiquitous that currently thought. Among those, galactolipids containing (dn)OPDA were discovered, firstly in A. thaliana, but also in other plants. Those molecules, named arabidopsides, are highly induced under stress conditions, as it accumulates up to 8 percent of plant lipids, but their precise contributions in plant defense mechanisms are still unknown. Arabidopsides are directly formed in plant chloroplast membranes from galactolipids. Accumulation of arabidopsides in such high quantity in chloroplast membranes may modify their properties (e.g. photosynthetic activity). This study aims to understand the impact of arabidopside presence in chloroplast membranes on their properties using biomimetic plant membranes via complementary in silico and in vitro approaches. Interfacial properties of arabidopsides and non-oxidized galactolipids were studied using Langmuir film balance. Results showed that arabidopsides possess different interfacial properties compared to non-oxidized chloroplast lipids. Arabidopsides ability to permeabilize chloroplast membranes was also studied in vitro. Arabidopsides A and B are able to permeabilize chloroplast membranes while arabidopside D is not. In conclusion, arabidopside production by plants under stress conditions may modify chloroplast membrane properties such as its permeability. As chloroplast membrane lipid composition is essential to its photosynthetic ability, such changes may also affect its function. [less ▲]

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See detailInteractions between natural herbicides and lipid bilayers mimicking the plant plasma membrane
Lebecque, Simon ULiege; Lins, Laurence ULiege; Dayan, Franck E. et al

in Frontiers in Plant Science (2019), 10

Natural phytotoxic compounds could become an alternative to traditional herbicides in the framework of sustainable agriculture. Nonanoic acid, sarmentine and sorgoleone are such molecules extracted from ... [more ▼]

Natural phytotoxic compounds could become an alternative to traditional herbicides in the framework of sustainable agriculture. Nonanoic acid, sarmentine and sorgoleone are such molecules extracted from plants and able to inhibit the growth of various plant species. However, their mode of action is not fully understood and despite clues indicating that they could affect the plant plasma membrane, molecular details of such phenomenon are lacking. In this paper, we investigate the interactions between those natural herbicides and artificial bilayers mimicking the plant plasma membrane. First, their ability to affect lipid order and fluidity is evaluated by means of fluorescence measurements. It appears that sorgoleone has a clear ordering effect on lipid bilayers, while nonanoic acid and sarmentine induce no or little change to these parameters. Then, a thermodynamic characterization of interactions of each compound with lipid vesicles is obtained with isothermal titration calorimetry, and their respective affinity for bilayers is found to be ranked as follows: sorgoleone > sarmentine > nonanoic acid. Finally, molecular dynamics simulations give molecular details about the location of each compound within a lipid bilayer and confirm the rigidifying effect of sorgoleone. Data also suggest that mismatch in alkyl chain length between nonanoic acid or sarmentine and lipid hydrophobic tails could be responsible for bilayer destabilization. Results are discussed regarding their implications for the phytotoxicity of these compounds. [less ▲]

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See detailDes huiles essentielles pour protéger les grains
Fauconnier, Marie-Laure ULiege; De Muelenaere, Michel

Article for general public (2019)

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See detailNew essential oils with interesting biological activities from endemic plants of Côte d'Ivoire: Zanthoxylum mezoneurispinosum and Zanthoxylum psammophilum
Tanoh, Amenan Evelyne ULiege; Nea, Fatimata ULiege; Kenne Kemene, Tierry ULiege et al

Poster (2019, February 04)

New essential oils with interesting biological activities from endemic plants of Côte d’Ivoire: Zanthoxylum mezoneurispinosum (Ake Assi) and Zanthoxylum psammophilum (Ake Assi). Evelyne A. Tanoh1 ... [more ▼]

New essential oils with interesting biological activities from endemic plants of Côte d’Ivoire: Zanthoxylum mezoneurispinosum (Ake Assi) and Zanthoxylum psammophilum (Ake Assi). Evelyne A. Tanoh1*, Fatimata Nea1, Tierry K. Kenne2, Manon Genva2, Matthew Saive2, Felix Z. Tonzibo1, Marie-Laure Fauconnier2. 1 Laboratory of Biological Organic Chemistry, UFR-SSMT, University Felix Houphouet-Boigny, BPV 34 Abidjan, Côte d’Ivoire 2 Laboratory of Natural Molecules Chemistry, University of Liège, Gembloux Agro- Bio Tech, 2, Passage of Deportés, B-5030 Gembloux, Belgium According to OMS nearly 80% of the population depend on traditional medicine given the strong growth in the use of natural products from plants1. Many Rutaceae plants are already used in traditional medicine for their biological properties such as anticancer and antioxidant activities. Zanthoxylum mezoneurispinosum (Ake Assi) and Zanthoxylum psammophylum (Ake Assi) are endemic Rutaceae to Côte d’Ivoire. In order to determine if those plants could be used in medicine, the aim of this work was to evaluate the chemical composition and the biological activities of essential oils extracted from both plants. Essential oils of our plants isolated from the leaves, trunk bark and roots. Their chemical compositions were determined by GC-MS. In vitro biological properties were determined using two activities: Antioxidant and anti-inflammatory. The analysis of the essential oils of leaves, trunk bark and roots of Z. psammophylum exhibit the predominance of two unusual methyl ketones, 2-undecanone and 2-tridecanone in leaves and trunk bark. These compounds have biological properties according to the literature2. The root is rich in thymol. Z. mezoneurispinosum oil is rich in alpha pinene for leaves and trunk bark, while the root is rich in gamma-elemene and cyclosativene. Cyclosativene is known for its biological activities3. The essential oils of both plants showed in increasing order antioxidant value in the leaves, trunk bark and roots. A measure of anti-inflammatory activity was found to in decreasing order in the root, followed by leaves and trunk bark. These plants could constitute a source of active molecules for traditional medicine in Côte d'Ivoire. However, although these plants are endemic in this country, they are not abundant and it is necessary to limit and protect the distribution of nurseries to produce plants and reintroduce these species into their natural habitat. References 1- O.M.S, 2002. : Besoins et potentiel. N° 4. 6 p. 2- Saini Mukesh and al, (2014). J. Agric. Food. Chem, 62: 4342 – 4348. 3- Kang Min-Seung, Lee Hoi-Seon, (2018). Applied Biological chemistry 61 (6): pp 653 – 659. [less ▲]

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See detailDevelopment of an essential oil-based new tool for pest-management in orchards : research methodology
Werrie, Pierre-Yves ULiege; Jean Le Goff, Guillaume; Hance, Thierry et al

Poster (2019, February 04)

The rosy apple aphid (Disaphys plantaginea) and the pear psylla (Cacopsylla pyri) are responsible for large yield decreases in both apple and pear orchads through sap sucking and desease spreading. To ... [more ▼]

The rosy apple aphid (Disaphys plantaginea) and the pear psylla (Cacopsylla pyri) are responsible for large yield decreases in both apple and pear orchads through sap sucking and desease spreading. To manage them, farmers use a range of phytosanitary products, that are sometimes very damaging to the environment/health. TREE INJECTION aims to propose an alternative technique based on an essential oil formulation that will be injected directly in the tree vascular system. Essential oils are natural insecticides developed by some plants through evolution, by injecting them directly in the tree, we hope to increase their persistence and avoid negative impact in the environment. The first objective is to select the essential oil (or the blend) presenting the strongest insecticidal and/or harmful properties (antifeedant, repellent, oviposition deterent) by rearing insects on artificial diets. Secondly, the possible phytotoxicity of these essential oils on trees will then be evaluated along with their translocation and impact within the plant. This will be monitored by designing a Gas-chromatography-mass spectrometry method to detect essential oil components within different organs of the tree (leaves, fruits) as well as phloem and xylem saps. Thirdly, the impact of formulation techniques such as micro-emulsion or other encapsulation techniques on the biodisponibility and persistence will be under investigation. Finally, the efficiency of these treatments will be evaluated under laboratory and field conditions. [less ▲]

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See detailArabidopside interactions with plant membranes
Genva, Manon ULiege; Deleu, Magali ULiege; Andersson, Mats X. et al

Poster (2019, February 04)

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See detailInvestigating the effect of plants on PAHs dissipation and bioaccessibility in brownfield contaminated soils (3 and 6 months cultures).
Davin, Marie ULiege; Fauconnier, Marie-Laure ULiege; Colinet, Gilles ULiege et al

Scientific conference (2019, February 04)

Polycyclic aromatic hydrocarbons (PAHs) are a class of persistant organic compounds of major concern that tend to accumulate in the environment, damaging ecosystems and health. Brownfields represent an ... [more ▼]

Polycyclic aromatic hydrocarbons (PAHs) are a class of persistant organic compounds of major concern that tend to accumulate in the environment, damaging ecosystems and health. Brownfields represent an important tank for PAHs and require remediation. As an alternative to environmentally aggressive, expensive and often disruptive soil remediation strategies, experiences have been carried on to understand and develop techniques based on bioremediation and phytoremediation. The main objective of the study was to investigate the potential of plants (Medicago sativa L. or Trifolium pratense L.) as PAHs bioremediation enhancers on an aged-contaminated soil. The first step was to adapt a bioaccessibility measurement protocol, using Tenax® beads, to the studied contaminated soil. Meanwhile soil samples were cultured in pots with one of the plant species for three, six, nine, and twelve months and compared to unplanted soil samples. Each modality was repeated five times for a total of 60 samples. PAHs desorption kinetics were established for 15 PAHs and described by a site distribution model. A common Tenax® beads extraction time (24 h) was established as a comparison basis for PAHs bioaccessibility assessments. Bioaccessible and residual PAHs were quantified using High-Performance Liquid Chromatography with Fluorimetric Detection (HPLC-FLD) on the three and six months samples, as the experiment is still underway. Preliminary results will be discussed. [less ▲]

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See detailCarcass traits and lamb meat quality assessment of Beni G uil's PGI sheep from eastern Morocco
Belhaj, K.; Tikent, A.; Mansouri, A. et al

Poster (2019, February)

In Morocco, Breeding is one of the primordial sectors in the national economy, playing an important socio-economic role. The "ANOC" a Moroccan national association for sheep and goat breeders, has ... [more ▼]

In Morocco, Breeding is one of the primordial sectors in the national economy, playing an important socio-economic role. The "ANOC" a Moroccan national association for sheep and goat breeders, has achieved the "PGI Beni Guil Sheep". Many breeders from eastern Morocco contributed into this labialization process and an agreement between "ANOC" and the certification body “NORMACERT” has been signed to certify the labeling of meat from Beni Guil lambs. The first batch of labeled lambs was produced in 2012 [1]. The objective of this study is to determine the characteristics of the carcass and meat quality of "Beni Guil" female lambs reared in this semi-arid region (eastern plateau of Morocco), because female lambs are most available for slaughter during all the year, whereas male lambs are generally fattened and reserved for the festival of sacrifice "Aid Aladha". [less ▲]

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