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  1. Article ; Online: Combined in vitro/in silico approaches, molecular dynamics simulations and safety assessment of the multifunctional properties of thymol and carvacrol: A comparative insight.

    Akermi, Sarra / Smaoui, Slim / Chaari, Moufida / Elhadef, Khaoula / Gentile, Rocco / Hait, Milan / Roymahapatra, Gourisankar / Mellouli, Lotfi

    Chemistry & biodiversity

    2024  Volume 21, Issue 2, Page(s) e202301575

    Abstract: Bioactive compounds derived from medicinal plants have acquired immense attentiveness in drug discovery and development. The present study investigated in vitro and predicted in silico the antibacterial, antifungal, and antiviral properties of thymol and ...

    Abstract Bioactive compounds derived from medicinal plants have acquired immense attentiveness in drug discovery and development. The present study investigated in vitro and predicted in silico the antibacterial, antifungal, and antiviral properties of thymol and carvacrol, and assessed their safety. The performed microbiological assays against Pseudomonas aeruginosa, Escherichia coli, Salmonella enterica Typhimurium revealed that the minimal inhibitory concentration values ranged from (0.078 to 0.312 mg/mL) and the minimal fungicidal concentration against Candida albicans was 0.625 mg/mL. Molecular docking simulations, stipulated that these compounds could inhibit bacterial replication and transcription functions by targeting DNA and RNA polymerases receptors with docking scores varying between (-5.1 to -6.9 kcal/mol). Studied hydroxylated monoterpenes could hinder C. albicans growth by impeding lanosterol 14α-demethylase enzyme and showed a (ΔG=-6.2 and -6.3 kcal/mol). Computational studies revealed that thymol and carvacrol could target the SARS-Cov-2 spike protein of the Omicron variant RBD domain. Molecular dynamics simulations disclosed that these compounds have a stable dynamic behavior over 100 ns as compared to remdesivir. Chemo-computational toxicity prediction using Protox II webserver indicated that thymol and carvacrol could be safely and effectively used as drug candidates to tackle bacterial, fungal, and viral infections as compared to chemical medication.
    MeSH term(s) Humans ; Thymol/pharmacology ; Thymol/metabolism ; Molecular Dynamics Simulation ; Molecular Docking Simulation ; Monoterpenes/pharmacology ; Monoterpenes/metabolism ; Salmonella typhimurium ; Candida albicans ; Escherichia coli ; Cymenes ; Spike Glycoprotein, Coronavirus
    Chemical Substances Thymol (3J50XA376E) ; carvacrol (9B1J4V995Q) ; spike protein, SARS-CoV-2 ; Monoterpenes ; Cymenes ; Spike Glycoprotein, Coronavirus
    Language English
    Publishing date 2024-01-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2139001-0
    ISSN 1612-1880 ; 1612-1872
    ISSN (online) 1612-1880
    ISSN 1612-1872
    DOI 10.1002/cbdv.202301575
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  2. Article: Disclosing the Functional Potency of Three Oxygenated Monoterpenes in Combating Microbial Pathogenesis: From Targeting Virulence Factors to Chicken Meat Preservation.

    Akermi, Sarra / Chaari, Moufida / Elhadef, Khaoula / Fourati, Mariam / Chakchouk Mtibaa, Ahlem / Agriopoulou, Sofia / Smaoui, Slim / Mellouli, Lotfi

    Foods (Basel, Switzerland)

    2024  Volume 13, Issue 6

    Abstract: During the last few decades, there has existed an increased interest in and considerable consumer preference towards using natural and safe compounds derived from medicinal plants as alternatives to synthetic preservatives to combat microbial ... ...

    Abstract During the last few decades, there has existed an increased interest in and considerable consumer preference towards using natural and safe compounds derived from medicinal plants as alternatives to synthetic preservatives to combat microbial pathogenicity. In this regard, the present study investigated the possible synergistic interactions of the anti-foodborne bacterial capacity of linalool (L), eucalyptol (E), and camphor (C). The antibacterial synergistic effect was determined against
    Language English
    Publishing date 2024-03-21
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704223-6
    ISSN 2304-8158
    ISSN 2304-8158
    DOI 10.3390/foods13060965
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  3. Article: Total Polyphenol, Flavonoid, and Proanthocyanidin Contents and Biological Activities of Inula Graveolens Collected from Chebba (Tunisia) Salt Marsh

    Sellem, Imen / Chakchouk-Mtibaa, Ahlem / Smaoui, Slim / Mellouli, Lotfi

    Journal of herbs, spices & medicinal plants. 2021 Oct. 02, v. 27, no. 4

    2021  

    Abstract: The biological activities of Inula graveolens in Chebba (Tunisia) salt marsh were screened. Total polyphenol (TPP), flavonoid (TF), and proanthocyanidin (TPC) contents were determined and the correlation between the phytochemistry and the antioxidant, ... ...

    Abstract The biological activities of Inula graveolens in Chebba (Tunisia) salt marsh were screened. Total polyphenol (TPP), flavonoid (TF), and proanthocyanidin (TPC) contents were determined and the correlation between the phytochemistry and the antioxidant, antimicrobial, and anti-enzymatic activities was assessed. The polyphenols in the solvent extracts suggested that salinity stress may enhance the production of bioactive compounds. Antiradical activities and a potent acetylcholinesterase inhibitory power were observed. I. graveolens extracts were antimicrobial against Salmonella typhimurium, Micrococcus luteus, and Staphylococcus aureus. Total flavonoids correlated with the activity against M. luteus, while the total polyphenols content was not correlated with the antimicrobial activity.
    Keywords Dittrichia graveolens ; Micrococcus luteus ; Salmonella Typhimurium ; Staphylococcus aureus ; acetylcholinesterase ; antimicrobial properties ; antioxidants ; flavonoids ; proanthocyanidins ; salt marshes ; salt stress ; solvents ; Tunisia
    Language English
    Dates of publication 2021-1002
    Size p. 426-444.
    Publishing place Taylor & Francis
    Document type Article
    ZDB-ID 1122804-0
    ISSN 1540-3580 ; 1049-6475
    ISSN (online) 1540-3580
    ISSN 1049-6475
    DOI 10.1080/10496475.2021.1947928
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  4. Article: Chemometric Multivariate Analyses of Kernel Biometric Techniques and Shell Morphological Attributes for Analyzing Pistacia vera L. Genotypes Variability

    Ennouri, Karim / Smaoui, Slim / Ben Hlima, Hajer / Ben Ayed, Rayda / Ben Braiek, Olfa / Mellouli, Lotfi / Triki, Mohamed Ali

    Erwerbsobstbau. 2022 June, v. 64, no. 2

    2022  

    Abstract: In this study, the corresponding correlations, interdependencies, and relationships of nine traits of pistachio (Pistacia vera L.) kernels were established. Here, the percentage of dehiscent shells, shell homogeneity, shell apex, position of suture ... ...

    Title translation Chemometrische multivariate Analysen von biometrischen Eigenschaften des Kerns und morphologischen Attributen der Schale zur Bestimmung der Variabilität von Genotypen bei Pistacia vera L.
    Abstract In this study, the corresponding correlations, interdependencies, and relationships of nine traits of pistachio (Pistacia vera L.) kernels were established. Here, the percentage of dehiscent shells, shell homogeneity, shell apex, position of suture opening, suture opening, number of pistachio kernels/100 g, (length/width) pistachio kernel ratio, pistachio kernel flavour and fat content of pistachio kernel were studied.The evaluation of experimental data was performed by applying a chemometric approach: Principal Component Analysis (PCA), Bayesian Networks method and Network Meta-Analysis. In this regard, based on PCA the first principal component of shell and kernel had high loadings for shell homogeneity. By using Bayesian Networks method, dendrogram of selected pistachio varieties demonstrate a high similitude existing between varieties. Furthermore, the of shell and kernel dendrogram of studied pistachio varieties demonstrated that all studied accessions could be separated into four distinct groups. Based on cluster analysis, a detailed comparison between the varieties demonstrated that the accession named ‘KERMAN’ showed a significant similarity with the Tunisian genotype ‘ELGUETAR’. In this line, Network Meta-Analysis exhibited the different interdependencies between morphological parameters, and the hierarchical clustering via heat maps displayed relationships between studied factors.These results showed a potential use of desired characteristics at least in some infra-specific studies in Pistacia vera L. The findings of this study will help plant growers by highlighting hidden and eventual relationships between Pistacia vera L. varieties.
    Keywords Bayesian theory ; Pistacia vera ; biometry ; chemometrics ; cluster analysis ; flavor ; genotype ; heat ; lipid content ; meta-analysis ; pistachios ; principal component analysis
    Language English
    Dates of publication 2022-06
    Size p. 283-290.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 519117-8
    ISSN 1439-0302 ; 0014-0309
    ISSN (online) 1439-0302
    ISSN 0014-0309
    DOI 10.1007/s10341-021-00635-w
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  5. Article ; Online: In-Depth Study of

    Akermi, Sarra / Smaoui, Slim / Fourati, Mariam / Elhadef, Khaoula / Chaari, Moufida / Chakchouk Mtibaa, Ahlem / Mellouli, Lotfi

    BioMed research international

    2022  Volume 2022, Page(s) 3368883

    Abstract: Questions have been raised apropos the emerging problem of microbial resistance, which may pose a great hazard to the human health. Among biosafe compounds are essential oils which captured consumer draw due to their multifunctional properties compared ... ...

    Abstract Questions have been raised apropos the emerging problem of microbial resistance, which may pose a great hazard to the human health. Among biosafe compounds are essential oils which captured consumer draw due to their multifunctional properties compared to chemical medication drugs. Here, we examined the chemical profile and the mechanism(s) of action of the
    MeSH term(s) Anti-Bacterial Agents/chemistry ; Anti-Bacterial Agents/pharmacology ; Humans ; Listeria monocytogenes ; Microbial Sensitivity Tests ; Molecular Docking Simulation ; Oils, Volatile/chemistry ; Oils, Volatile/pharmacology ; Staphylococcus aureus ; Thymol/pharmacology ; Thymus Plant/chemistry
    Chemical Substances Anti-Bacterial Agents ; Oils, Volatile ; Thymol (3J50XA376E)
    Language English
    Publishing date 2022-07-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2698540-8
    ISSN 2314-6141 ; 2314-6133
    ISSN (online) 2314-6141
    ISSN 2314-6133
    DOI 10.1155/2022/3368883
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Variability in Phytochemical Contents and Biological Potential of Pomegranate (Punica granatum) Peel Extracts: Toward a New Opportunity for Minced Beef Meat Preservation

    Fourati, Mariam / Smaoui, Slim / Ben Hlima, Hajer / Elhadef, Khaoula / Chakchouk Mtibaa, Ahlem / Mellouli, Lotfi

    Journal of food quality. 2020 Sept. 30, v. 2020

    2020  

    Abstract: Extraction of Tunisian pomegranate peels was employed with different solvents such as ethyl acetate, acetonitrile, and water. Total phenolic and flavonoids contents, antioxidant activity, and antibacterial capacity against five foodborne pathogenic ... ...

    Abstract Extraction of Tunisian pomegranate peels was employed with different solvents such as ethyl acetate, acetonitrile, and water. Total phenolic and flavonoids contents, antioxidant activity, and antibacterial capacity against five foodborne pathogenic bacteria were evaluated. The highest values of polyphenols (351 mg gallic acid equivalent/g), flavonoids (104 mg quercetin/g), and DPPH and ABTS inhibition were recorded in the ethyl acetate extract followed by the aqueous extract. The latter present the maximum antibacterial potential against S. enterica, P. aeruginosa, and E. coli. The potential use of the lyophilized aqueous extract (AE), used for safety reason and being rich in phenolic, as biopreservative in minced beef meat was described. AE was incorporated at 0.1, 0.5, and 1% and compared with 0.1% butylated hydroxytoluene (BHT). During 21 days at 4°C, AE at 1% could appreciably retard the microflora proliferation (p<0.05), the accumulation of MetMb and the carbonyl group (p<0.05), slowing down the loss of sulphydryl proteins (p<0.05), and led to a decrease (p<0.05) in primary (peroxide value and conjugated dienes) and secondary lipid oxidation (TBARS) in treated meat. By the 14ᵗʰ day, AE-treated minced meat obtained higher sensory scores than untreated and BHT samples. Based on these results, lipid and protein oxidation changes and sensorial attributes were useful in discriminating meat samples by overall acceptability prediction. Generally, AE at 1% presented the potent preservative effect that could be utilized as an application on meat-substituting synthetic antioxidant.
    Keywords Escherichia coli ; Punica granatum ; acetonitrile ; antibacterial properties ; antioxidant activity ; antioxidants ; butylated hydroxytoluene ; ethyl acetate ; food quality ; freeze drying ; gallic acid ; lipid peroxidation ; lipids ; microorganisms ; minced beef ; oxidation ; peroxide value ; polyphenols ; pomegranates ; prediction ; quercetin
    Language English
    Dates of publication 2020-0930
    Publishing place Hindawi
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2175284-9
    ISSN 1745-4557 ; 0146-9428
    ISSN (online) 1745-4557
    ISSN 0146-9428
    DOI 10.1155/2020/8853196
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  7. Article: Recent advancements in encapsulation of bioactive compounds as a promising technique for meat preservation

    Smaoui, Slim / Ben Hlima, Hajer / Ben Braïek, Olfa / Ennouri, Karim / Mellouli, Lotfi / Mousavi Khaneghah, Amin

    Meat science. 2021 Nov., v. 181

    2021  

    Abstract: Encapsulation is currently considered as one the most valuable methods for preserving aromatic compounds or hiding odors, enhancing their thermal and oxidative stability, and expanding their food applications. Indeed, this current article was aimed to ... ...

    Abstract Encapsulation is currently considered as one the most valuable methods for preserving aromatic compounds or hiding odors, enhancing their thermal and oxidative stability, and expanding their food applications. Indeed, this current article was aimed to provide an overview regarding the encapsulation of plant bioactive compounds and the spray-drying and extrusion processes with a focused discussion regarding the encountered challenges for meat and meat product preservation. Furthermore, different ranges of carbohydrates as wall materials (carriers) besides the process conditions' effects on the encapsulation effectiveness and the particle size of the encapsulated bioactive compounds have been discussed. The encapsulation of these compounds ameliorates the quality of the stored meat products by further delaying in microflora growth and lipid/protein oxidation. Therefore, the innovative technologies for plant active compounds encapsulation offer a prospective alternative for natural preservation development in the meat industry.
    Keywords encapsulation ; extrusion ; lipids ; livestock and meat industry ; meat ; meat science ; microorganisms ; oxidation ; oxidative stability ; particle size ; spray drying
    Language English
    Dates of publication 2021-11
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 753319-6
    ISSN 1873-4138 ; 0309-1740
    ISSN (online) 1873-4138
    ISSN 0309-1740
    DOI 10.1016/j.meatsci.2021.108585
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  8. Article: Application of essential oils in meat packaging: A systemic review of recent literature

    Smaoui, Slim / Ben Hlima, Hajer / Tavares, Loleny / Ennouri, Karim / Ben Braiek, Olfa / Mellouli, Lotfi / Abdelkafi, Slim / Mousavi Khaneghah, Amin

    Food control. 2022 Feb., v. 132

    2022  

    Abstract: During preparation, processing, and distribution, the spoilage of meat products has been causing a negative economic impact in the meat industries. In addition, lipid/protein oxidation and deterioration resulting from microorganisms' development are ... ...

    Abstract During preparation, processing, and distribution, the spoilage of meat products has been causing a negative economic impact in the meat industries. In addition, lipid/protein oxidation and deterioration resulting from microorganisms' development are other concerns verified during the storage of meat and meat derivatives. In this sense, the meat industry has designed biopolymers-based materials containing biomolecules as active packaging to diminish losses and improve the shelf-life of these products. Here, we examined the loading of essential oils in the active films and coatings. Their impact on the chemico–physio–mechanico properties and antioxidant and antibacterial potential of the numerous biopolymer films for packaging meat and derived products are discussed. The potential use of essential oils incorporated into biopolymer network matrices of these films was also evaluated. This review also covers the biological effects of different types of edible films and the influence of these functional packaging on improving meat product quality. Interestingly, active films containing essential oil present a future approach and an environmentally friendly solution in the meat industry. In general, active food packaging revealed suitable technology to improve meat quality and reduce waste in the food industry.
    Keywords antibacterial properties ; antioxidants ; biopolymers ; economic impact ; essential oils ; food industry ; food safety ; lipids ; livestock and meat industry ; meat ; meat quality ; oxidation ; shelf life ; spoilage ; wastes
    Language English
    Dates of publication 2022-02
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 1027805-9
    ISSN 0956-7135
    ISSN 0956-7135
    DOI 10.1016/j.foodcont.2021.108566
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  9. Article ; Online: A New Endophytic Fusarium Oxysporum Gibberellic Acid: Optimization of Production Using Combined Strategies of Experimental Designs and Potency on Tomato Growth under Stress Condition.

    Ben Rhouma, Marwa / Kriaa, Mouna / Ben Nasr, Yosri / Mellouli, Lotfi / Kammoun, Radhouane

    BioMed research international

    2020  Volume 2020, Page(s) 4587148

    Abstract: This study reports the potential of the endophytic fungi identified as ... ...

    Abstract This study reports the potential of the endophytic fungi identified as a
    MeSH term(s) Chlorophyll/metabolism ; Chromatography, High Pressure Liquid ; Fermentation/drug effects ; Fusarium/chemistry ; Fusarium/growth & development ; Fusarium/metabolism ; Gibberellins/chemistry ; Gibberellins/isolation & purification ; Gibberellins/pharmacology ; Lycopersicon esculentum/drug effects ; Lycopersicon esculentum/growth & development ; Plant Growth Regulators/biosynthesis ; Plant Growth Regulators/isolation & purification ; Salinity ; Stress, Physiological/drug effects
    Chemical Substances Gibberellins ; Plant Growth Regulators ; Chlorophyll (1406-65-1) ; gibberellic acid (BU0A7MWB6L)
    Language English
    Publishing date 2020-03-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2698540-8
    ISSN 2314-6141 ; 2314-6133
    ISSN (online) 2314-6141
    ISSN 2314-6133
    DOI 10.1155/2020/4587148
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  10. Article ; Online: Recent advancements in encapsulation of bioactive compounds as a promising technique for meat preservation.

    Smaoui, Slim / Ben Hlima, Hajer / Ben Braïek, Olfa / Ennouri, Karim / Mellouli, Lotfi / Mousavi Khaneghah, Amin

    Meat science

    2021  Volume 181, Page(s) 108585

    Abstract: Encapsulation is currently considered as one the most valuable methods for preserving aromatic compounds or hiding odors, enhancing their thermal and oxidative stability, and expanding their food applications. Indeed, this current article was aimed to ... ...

    Abstract Encapsulation is currently considered as one the most valuable methods for preserving aromatic compounds or hiding odors, enhancing their thermal and oxidative stability, and expanding their food applications. Indeed, this current article was aimed to provide an overview regarding the encapsulation of plant bioactive compounds and the spray-drying and extrusion processes with a focused discussion regarding the encountered challenges for meat and meat product preservation. Furthermore, different ranges of carbohydrates as wall materials (carriers) besides the process conditions' effects on the encapsulation effectiveness and the particle size of the encapsulated bioactive compounds have been discussed. The encapsulation of these compounds ameliorates the quality of the stored meat products by further delaying in microflora growth and lipid/protein oxidation. Therefore, the innovative technologies for plant active compounds encapsulation offer a prospective alternative for natural preservation development in the meat industry.
    MeSH term(s) Food Preservation/methods ; Meat/analysis ; Meat/microbiology ; Meat Products/analysis ; Meat Products/microbiology ; Oxidation-Reduction ; Particle Size ; Phytochemicals
    Chemical Substances Phytochemicals
    Language English
    Publishing date 2021-05-29
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 753319-6
    ISSN 1873-4138 ; 0309-1740
    ISSN (online) 1873-4138
    ISSN 0309-1740
    DOI 10.1016/j.meatsci.2021.108585
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