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Krayem N, Gargouri Y. Scorpion venom phospholipases A2: A minireview. Toxicon 2020; 184:48-54. [DOI: 10.1016/j.toxicon.2020.05.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 05/07/2020] [Accepted: 05/24/2020] [Indexed: 01/10/2023]
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Eddehech A, Smichi N, Arhab Y, Noiriel A, Abousalham A, Gargouri Y, Zarai Z. Corrigendum to “Production, purification and functional characterization of phospholipase C from Bacillus thuringiensis with high catalytic activity” [Process Biochem. 83 (2019) 122-130]. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.07.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Eddehech A, Smichi N, Arhab Y, Noiriel A, Abousalham A, Gargouri Y, Zarai Z. Production, purification and functional characterization of phospholipase C from Bacillus thuringiensis with high catalytic activity. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.05.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Rmili F, Achouri N, Smichi N, Krayem N, Bayoudh A, Gargouri Y, Chamkha M, Fendri A. Purification and biochemical characterization of an organic solvent-tolerant and detergent-stable lipase from Staphylococcus capitis. Biotechnol Prog 2019; 35:e2833. [PMID: 31050178 DOI: 10.1002/btpr.2833] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/29/2019] [Accepted: 04/19/2019] [Indexed: 12/14/2022]
Abstract
A mesophilic bacterial culture, producing an extracellular alkaline lipase, was isolated from the gas-washing wastewaters generated from the Sfax phosphate plant of the Tunisian Chemical Group and identified as Staphylococcus capitis strain. The lipase, named S. capitis lipase (SCL), has been purified to homogeneity from the culture medium. The purified enzyme molecular weight was around 45 kDa. Specific activities about 3,900 and 500 U/mg were measured using tributyrin and olive oil emulsion as substrates, respectively at 37°C and pH 8.5. Interestingly, the SCL maintained more than 60% of its initial activity over a wide pH values ranging from 5 to 11 with a high stability between pH 9 and 11 after 1 hr of incubation at room temperature. The lipase activity was enhanced in the presence of 2 mM of Mg2+ , Ca2+ , and K+ . SCL showed significant stability in the presence of detergents and organic solvents. Altogether, these features make the SCL useful for industrial applications. Besides, SCL was compatible with commercially available detergents, and its incorporation increases lipid degradation performances making it a potential candidate in detergent formulation.
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Affiliation(s)
- Fatma Rmili
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Route de Soukra, Sfax, Tunisie
| | - Neila Achouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Route de Soukra, Sfax, Tunisie
| | - Nabil Smichi
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Route de Soukra, Sfax, Tunisie
| | - Najeh Krayem
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Route de Soukra, Sfax, Tunisie
| | - Ahmed Bayoudh
- Laboratoire de Génie Enzymatique et de Microbiologie, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Route de Soukra, Sfax, Tunisie
| | - Mohamed Chamkha
- Laboratoire des Bioprocédés Environnementaux, Pôle d'Excellence Régional AUF PER-LBPE, Centre de Biotechnologie de Sfax, Sfax, Tunisia
| | - Ahmed Fendri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Route de Soukra, Sfax, Tunisie
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Eddehech A, Zarai Z, Aloui F, Smichi N, Noiriel A, Abousalham A, Gargouri Y. Production, purification and biochemical characterization of a thermoactive, alkaline lipase from a newly isolated Serratia sp. W3 Tunisian strain. Int J Biol Macromol 2019; 123:792-800. [DOI: 10.1016/j.ijbiomac.2018.11.050] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/09/2018] [Accepted: 11/09/2018] [Indexed: 11/29/2022]
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Kharrat N, Salem H, Mrabet A, Aloui F, Triki S, Fendri A, Gargouri Y. Synergistic effect of polysaccharides, betalain pigment and phenolic compounds of red prickly pear (Opuntia stricta) in the stabilization of salami. Int J Biol Macromol 2018; 111:561-568. [DOI: 10.1016/j.ijbiomac.2018.01.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 12/04/2017] [Accepted: 01/04/2018] [Indexed: 10/18/2022]
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Krayem N, Abdelkefi-Koubaa Z, Gargouri Y, Luis J. Integrin-mediated human glioblastoma cells adhesion, migration and invasion by native and recombinant phospholipases of Scorpio maurus venom glands. Arch Biochem Biophys 2018; 645:19-25. [DOI: 10.1016/j.abb.2018.03.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 02/21/2018] [Accepted: 03/12/2018] [Indexed: 02/08/2023]
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Krayem N, Parsiegla G, Gaussier H, Louati H, Jallouli R, Mansuelle P, Carrière F, Gargouri Y. Functional characterization and FTIR-based 3D modeling of full length and truncated forms of Scorpio maurus venom phospholipase A 2. Biochim Biophys Acta Gen Subj 2018; 1862:1247-1261. [DOI: 10.1016/j.bbagen.2018.02.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 01/26/2018] [Accepted: 02/06/2018] [Indexed: 11/24/2022]
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Sellami M, Ben Rebah F, Gargouri Y, Miled N. Lipid composition and antioxidant activity of liver oils from ray species living in Tunisian coasts. ARAB J CHEM 2018. [DOI: 10.1016/j.arabjc.2014.07.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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Smichi N, Achouri N, Noiriel A, Arondel V, Abousalham A, Gargouri Y, Miled N, Fendri A. Heterologous Expression and Functional Characterization of Sparidae Fish Digestive Phospholipase A 2. Methods Mol Biol 2018; 1835:179-189. [PMID: 30109652 DOI: 10.1007/978-1-4939-8672-9_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, we have produced for the first time a fish phospholipase (PLA2) in heterologous system (E. coli). The Diplodus annularis PLA2 (DaPLA2) was then refolded from inclusion bodies and purified by Ni-affinity chromatography. We used the pH-stat method (with emulsified phosphatidylcholine as substrate) and the monomolecular film technique (using various glycerophospholipids substrates spread in the form of monomolecular films at the air-water interface) to access the biochemical and kinetic properties of the recombinant DaPLA2. The DaPLA2 was found to be active and stable at higher temperatures (37-50 °C) than expected. Interestingly, DaPLA2 hydrolyzes efficiently both purified phosphatidylglycerol and phosphatidylethanolamine at 20 mN/m. These analytical results corroborate with the fact that the catalytic activity of DaPLA2, measured with the pH-stat using egg yolk as substrate, is mainly due to the hydrolysis of the PE fraction present in egg yolk, whereas the phosphatidylglycerol is a hallmark substrate for the most secreted PLA2-IB.
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Affiliation(s)
- Nabil Smichi
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, University of Sfax, Sfax, Tunisia.
| | - Neila Achouri
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, University of Sfax, Sfax, Tunisia
| | - Alexandre Noiriel
- Métabolisme, Enzymes et Mécanismes Moléculaires (MEM2), Univ Lyon, Université Lyon 1, Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires, UMR 5246 CNRS, Villeurbanne Cedex, France
| | - Vincent Arondel
- Laboratoire de Biogenèse Membranaire, CNRS, UMR 5200, INRA Bordeaux Aquitaine, BP81, Villenave d'Ornon Cedex, Bordeaux, France
| | - Abdelkarim Abousalham
- Métabolisme, Enzymes et Mécanismes Moléculaires (MEM2), Univ Lyon, Université Lyon 1, Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires, UMR 5246 CNRS, Villeurbanne Cedex, France
| | - Youssef Gargouri
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, University of Sfax, Sfax, Tunisia
| | - Nabil Miled
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, University of Sfax, Sfax, Tunisia
| | - Ahmed Fendri
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, University of Sfax, Sfax, Tunisia
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Ben Ayed S, Ali MB, Bali A, Gargouri Y, Laouini D, Ben Ali Y. Secretory lipase from the human pathogen Leishmania major: Heterologous expression in the yeast Pichia pastoris and biochemical characterization. Biochimie 2017; 146:119-126. [PMID: 29246663 DOI: 10.1016/j.biochi.2017.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 12/07/2017] [Indexed: 10/18/2022]
Abstract
Leishmaniasis is a parasitic reticuloendotheliosis whose pathogen is a zooflagellate belonging to the genus Leishmania transmitted by the bite of an infected phlebotome. Recently, a unique secretory lipase from the human pathogen Leishmania donovani Ldlip3 has been identified and characterized. This lipase has a high identity with a putative triacylglycerol lipase of Leishmania major (Lmlip2). In the present study, Lmlip2 was expressed in the eukaryotic heterologous expression system Pichia pastoris as tagged enzyme of 308 amino acids. Maximal protein production was reached after 2 days of fermentation. Optimal Lmlip2 lipase activity was measured using the pH stat technique at pH 8 at 26 °C using vinyl esters and triacylglycerols (true lipids) as substrates. Moreover, biochemical characterization of Lmlip2 contained in culture supernatant, illustrates that L. major secreted lipase is active and stable at low temperatures especially 26°and prefer neutral pH; concerning substrate specificityLmlip2 presents a preference for short chains lipid substrates vinyl esters such as VC2, VC3 and VC4 likewise, it is capable to hydrolyze long chain triacylglycerols like olive oil. Metal ions and surfactants tested in this study decrease Lmlip2 activity. Further studies are needed to clarify the relation between the lipase activity and the virulence. Thus, it could lead to the identification of novel targets to block cutaneous Leishmaniasis in human hosts.
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Affiliation(s)
- Saoussen Ben Ayed
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Université de Sfax, ENIS Route de Soukra, Sfax, Tunisia
| | - Madiha Bou Ali
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Université de Sfax, ENIS Route de Soukra, Sfax, Tunisia
| | - Aymen Bali
- Laboratory of Transmission, Control and Immunobiology of Infections Institut Pasteur de Tunis, 13 Place Pasteur, Tunis-Belvédère, Tunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Université de Sfax, ENIS Route de Soukra, Sfax, Tunisia
| | - Dhafer Laouini
- Laboratory of Transmission, Control and Immunobiology of Infections Institut Pasteur de Tunis, 13 Place Pasteur, Tunis-Belvédère, Tunisia
| | - Yassine Ben Ali
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Université de Sfax, ENIS Route de Soukra, Sfax, Tunisia.
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Karray A, Bou Ali M, Kharrat N, Gargouri Y, Bezzine S. Antibacterial, antifungal and anticoagulant activities of chicken PLA2 group V expressed in Pichia pastoris. Int J Biol Macromol 2017; 108:127-134. [PMID: 29129630 DOI: 10.1016/j.ijbiomac.2017.11.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 11/07/2017] [Accepted: 11/08/2017] [Indexed: 02/02/2023]
Abstract
Secretory class V phospholipase A2 (PLA2-V) has been shown to be involved in inflammatory processes in cellular studies, but the biochemical and physical properties of this important enzyme have been unclear. As a first step towards understanding the structure, function and regulation of this PLA2, we report the expression and characterization of PLA2-V from chicken (ChPLA2-V). The ChPLA2-V cDNA was synthesized from chicken heart polyA mRNA by RT-PCR, and an expression construct containing the PLA2 was established. After expression in Pichia pastoris cells, the active enzyme was purified. The purified ChPLA2-V protein was biochemically and physiologically characterized. The recombinant ChPLA2-V has an absolute requirement for Ca2+ for enzymatic activity. The optimum pH for this enzyme is pH 8.5 in Tris-HCl buffer with phosphatidylcholine as substrate. ChPLA2-V was found to display potent Gram-positive and Gram-negative bactericidal activity and antifungal activity in vitro. The purified enzyme ChPLA2-V with much stronger anticoagulant activity compared with the intestinal and pancreatic chicken PLA2-V was approximately 10 times more active. Chicken group V PLA2, like mammal one, may be considered as a future therapeutic agents against fungal and bacterial infections and as an anticoagulant agent.
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Affiliation(s)
- Aida Karray
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, université de Sfax, Tunisia
| | - Madiha Bou Ali
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, université de Sfax, Tunisia
| | - Nedia Kharrat
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, université de Sfax, Tunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, université de Sfax, Tunisia
| | - Sofiane Bezzine
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, université de Sfax, Tunisia.
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Achouri N, Kharrat N, Smichi N, Miled N, Gargouri Y, Fendri A. Nutritional properties, oxidative stability, and in vitro digestibility of oils extracted from muscles of wild and breeding eels (Anguilla anguilla). J FOOD PROCESS PRES 2017. [DOI: 10.1111/jfpp.13519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Neila Achouri
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesENIS, Route de SoukraSfax 1173‐3038 Tunisia
| | - Nadia Kharrat
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesENIS, Route de SoukraSfax 1173‐3038 Tunisia
| | - Nabil Smichi
- Enzymologie Interfaciale et Physiologie de la LipolyseCNRS Aix‐Marseille UniversitéChemin Joseph Aiguier France
| | - Nabil Miled
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesENIS, Route de SoukraSfax 1173‐3038 Tunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesENIS, Route de SoukraSfax 1173‐3038 Tunisia
| | - Ahmed Fendri
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesENIS, Route de SoukraSfax 1173‐3038 Tunisia
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Achouri N, Smichi N, Kharrat N, Rmili F, Gargouri Y, Miled N, Fendri A. Characterization of liver oils from three species of sharks collected in Tunisian coasts: In vitro digestibility by pancreatic lipase. J Food Biochem 2017. [DOI: 10.1111/jfbc.12453] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Neila Achouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS; Route de Soukra; BPW 1173-3038 Sfax Tunisie
| | - Nabil Smichi
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS; Route de Soukra; BPW 1173-3038 Sfax Tunisie
- Enzymologie Interfaciale et Physiologie de la Lipolyse, Chemin Joseph Aiguier; CNRS, Aix-Marseille Université; Marseille France
| | - Nadia Kharrat
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS; Route de Soukra; BPW 1173-3038 Sfax Tunisie
| | - Fatma Rmili
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS; Route de Soukra; BPW 1173-3038 Sfax Tunisie
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS; Route de Soukra; BPW 1173-3038 Sfax Tunisie
| | - Nabil Miled
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS; Route de Soukra; BPW 1173-3038 Sfax Tunisie
| | - Ahmed Fendri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS; Route de Soukra; BPW 1173-3038 Sfax Tunisie
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Kharrat N, Aissa I, Dgachi Y, Aloui F, Chabchoub F, Bouaziz M, Gargouri Y. Enzymatic synthesis of 1,3-dihydroxyphenylacetoyl-sn-glycerol: Optimization by response surface methodology and evaluation of its antioxidant and antibacterial activities. Bioorg Chem 2017; 75:347-356. [PMID: 29096095 DOI: 10.1016/j.bioorg.2017.10.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 10/04/2017] [Accepted: 10/22/2017] [Indexed: 10/18/2022]
Abstract
In this study, the enzymatic synthesis of phenylacetoyl glycerol ester was carried out as a response to the increasing consumer demand for natural compounds. 1,3-dihydroxyphenylacetoyl-sn-Glycerol (1,3-di-HPA-Gly), labeled as "natural" compound with interesting biological properties, has been successfully synthesized for the first time in good yield by a direct esterification of glycerol (Gly) with p-hydroxyphenylacetic acid (p-HPA) using immobilized Candida antarctica lipase as a biocatalyst. Spectroscopic analyses of purified esters showed that the glycerol was mono- or di-esterified on the primary hydroxyl group. These compounds were evaluated for their antioxidant activity using two different tests. The glycerol di-esters (1,3-di-HPA-Gly) showed a higher antiradical capacity than that of the butyl hydroxytoluene. Furthermore, compared to the p-HPA, synthesized ester (1,3-di-HPA-Gly) exhibited the most antibacterial effect mainly against Gram + bacteria. Among synthesized esters the 1,3-di-HPA-Gly was most effective as antioxidant and antibacterial compound. These findings could be the basis for a further exploitation of the new compound, 1,3-di-HPA-Gly, as antioxidant and antibacterial active ingredient in the cosmetic and pharmaceutical fields.
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Affiliation(s)
- Nadia Kharrat
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, Route of Soukra, P.O. Box 1173, 3038, University of Sfax, Tunisia
| | - Imen Aissa
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, Route of Soukra, P.O. Box 1173, 3038, University of Sfax, Tunisia
| | - Youssef Dgachi
- Laboratory of Applied Chemistry: Heterocycles, Lipids and Polymers, Faculty of Sciences of Sfax, University of Sfax, P.O. Box 802, 3000 Sfax, Tunisia
| | - Fatma Aloui
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, Route of Soukra, P.O. Box 1173, 3038, University of Sfax, Tunisia
| | - Fakher Chabchoub
- Laboratory of Applied Chemistry: Heterocycles, Lipids and Polymers, Faculty of Sciences of Sfax, University of Sfax, P.O. Box 802, 3000 Sfax, Tunisia
| | - Mohamed Bouaziz
- Electro-chemical Environmental Laboratory, ENIS, Route of Soukra, P.O. Box 1173, 3038, University of Sfax, Tunisia
| | - Youssef Gargouri
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, Route of Soukra, P.O. Box 1173, 3038, University of Sfax, Tunisia.
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Verger R, Pieroni G, Riviere C, Ferrato F, Gargouri Y. Relations structure-réactivité dans les amphiphiles. régulation de certaines activités biologiques par la « qualité interfaciale ». ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jcp/1985820673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Smichi N, Othman H, Achouri N, Noiriel A, Arondel V, Srairi-Abid N, Abousalham A, Gargouri Y, Miled N, Fendri A. Functional and Structural Characterization of a Thermostable Phospholipase A 2 from a Sparidae Fish (Diplodus annularis). J Agric Food Chem 2017; 65:2468-2480. [PMID: 28287729 DOI: 10.1021/acs.jafc.6b05810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Novel phospholipase (PLA2) genes from the Sparidae family were cloned. The sequenced PLA2 revealed an identity with pancreatic PLA2 group IB. To better understand the structure/function relationships of these enzymes and their evolution, the Diplodus annularis PLA2 (DaPLA2) was overexpressed in E. coli. The refolded enzyme was purified by Ni-affinity chromatography and has a molecular mass of 15 kDa as determined by MALDI-TOF spectrometry. Interestingly, unlike the pancreatic type, the DaPLA2 was active and stable at higher temperatures, which suggests its great potential in biotechnological applications. The 3D structure of DaPLA2 was constructed to gain insights into the functional properties of sparidae PLA2. Molecular docking and dynamic simulations were performed to explain the higher thermal stability and the substrate specificity of DaPLA2. Using the monolayer technique, the purified DaPLA2 was found to be active on various phospholipids ranging from 10 to 20 mN·m-1, which explained the absence of the hemolytic activity for DaPLA2.
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Affiliation(s)
- Nabil Smichi
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS , 3038 Sfax, Tunisia
- Enzymologie Interfaciale et Physiologie de la Lipolyse, UMR7282, CNRS, Aix-Marseille Université , 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Houcemeddine Othman
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Université Tunis-El Manar, Institut Pasteur de Tunis , Tunis 1002, Tunisia
| | - Neila Achouri
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS , 3038 Sfax, Tunisia
| | - Alexandre Noiriel
- Univ Lyon, Université Lyon 1, Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires (ICBMS), UMR 5246 CNRS, Métabolisme, Enzymes et Mécanismes Moléculaires (MEM2 , F-69622 Villeurbanne cedex, France
| | - Vincent Arondel
- Univ Bordeaux, UMR 5200, Laboratoire de Biogenèse Membranaire , Bat. A3 Campus INRA de Bordeaux 71 avenue E., Bourlaux CS 2003233140 Villenave d'Ornon, France
| | - Najet Srairi-Abid
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Université Tunis-El Manar, Institut Pasteur de Tunis , Tunis 1002, Tunisia
| | - Abdelkarim Abousalham
- Univ Lyon, Université Lyon 1, Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires (ICBMS), UMR 5246 CNRS, Métabolisme, Enzymes et Mécanismes Moléculaires (MEM2 , F-69622 Villeurbanne cedex, France
| | - Youssef Gargouri
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS , 3038 Sfax, Tunisia
| | - Nabil Miled
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS , 3038 Sfax, Tunisia
| | - Ahmed Fendri
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS , 3038 Sfax, Tunisia
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Aissa I, Kharrat N, Aloui F, Sellami M, Bouaziz M, Gargouri Y. Valorization of antioxidants extracted from olive mill wastewater. Biotechnol Appl Biochem 2017; 64:579-589. [PMID: 27226334 DOI: 10.1002/bab.1509] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 05/16/2016] [Indexed: 11/07/2022]
Abstract
Antioxidants are highly important gradients used to preserve cosmetic products and reduce the effect of oxidative stress on the skin. The present work explores the possibility of using phenolic compounds of olive mill wastewater (OMW) as effective alternatives to the commercial antioxidants used in cosmetic formulations deemed by their allergic and carcinogenic effects. Esterification of tyrosol and hydroxytyrosol extracted from OMW with various fatty acids was conducted using Novozyme 435 lipase as a biocatalyst. Upon synthesis, butyrate, caprate, laurate, and palmitate tyrosyl and hydroxytyrosyl esters were isolated and evaluated for their antioxidant and antibacterial activities. Results showed that laurate derivatives are the most efficient in preventing lipid oxidation and inhibiting growth of pathogenic strains. In the prospective of industrial use, laurate tyrosyl and hydroxytyrosyl derivatives were incorporated in a formulation of moisturizer to substitute the commercial antioxidant butylated hydroxyltoluene. Oleuropein, extracted from olive leaves powder, was also tested as an antiaging ingredient in cosmetic formulations. The evaluation of physicochemical, microbiological, and sensorial properties of the new cosmetic products indicated that oleuropein and lipophilic derivatives do not affect the properties of the standard formulation. Oleuropein and lipophilic derivatives can be added as active ingredients to stabilize cosmetic preparations.
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Affiliation(s)
- Imen Aissa
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, Sfax, Université de Sfax, Tunisie
| | - Nadia Kharrat
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, Sfax, Université de Sfax, Tunisie
| | - Fatma Aloui
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, Sfax, Université de Sfax, Tunisie
| | - Mohamed Sellami
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, Sfax, Université de Sfax, Tunisie
| | - Mohamed Bouaziz
- Laboratoire d'Electrochimie et Environnement, ENIS, Route de Soukra, BPW, Université de Sfax, Tunisie
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, Sfax, Université de Sfax, Tunisie
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Smichi N, Fendri A, Triki S, Arondel V, Rebai A, Gargouri Y, Miled N. Biochemical characterization, cloning and molecular modeling of a digestive lipase from red seabream ( Pagrus major): Structural explanation of the interaction deficiency with colipase and lipidic interface. Eng Life Sci 2017; 17:664-677. [PMID: 32624812 DOI: 10.1002/elsc.201600246] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 11/30/2016] [Accepted: 01/05/2017] [Indexed: 11/12/2022] Open
Abstract
Red seabream digestive lipase (RsDL) was purified from fresh pyloric caeca. Pure RsDL has an apparent molecular mass of 50 kDa. The RsDL is more active on short-chain triacylglycerols (TC4), and enzymatic activity decreases when medium (TC8) or long-chain (olive oil) triacylglycerols were used as substrates. The specific activities of RsDL are very weak as compared to those obtained with classical pancreatic lipases. No colipase was detected in the red seabream pyloric caeca. Furthermore, the RsDL was not activated by a mammal colipase. Similar results were reported for annular seabream lipase. In order to explain structurally the discrepancies between sparidae and mammal lipases, genes encoding mature RsDL and five other lipases from sparidae fish species were cloned and sequenced. Phylogenetic studies indicated the closest homology of sparidae lipases to bird pancreatic ones. Structural models were built for annular seabream and RsDL under their closed and open forms using mammal pancreatic lipases as templates. Several differences were noticed when analyzing the amino acids corresponding to those involved in HPL binding to colipase. This is likely to prevent interaction between the fish lipase and the mammalian colipase and may explain the fact that mammalian colipase is not effective in activating sparidae lipases. In addition, several hydrophobic residues, playing a key role in anchoring pancreatic lipase onto the lipid interface, are replaced by polar residues in fish lipases. This might explain the reason why the latter enzymes display weak activity levels when compared to mammalian pancreatic lipases.
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Affiliation(s)
- Nabil Smichi
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases ENIS Sfax Tunisia
| | - Ahmed Fendri
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases ENIS Sfax Tunisia
| | - Soumaya Triki
- Department of Bioinformatics and Human Genetics Center of Biotechnology of Sfax Sfax Tunisia
| | - Vincent Arondel
- Laboratory of Membrane Biogenesis, CNRS, UMR5200 Bordeaux University BP81, 71 Edouard Bourlaux Villenave d'Ornon France
| | - Ahmed Rebai
- Department of Bioinformatics and Human Genetics Center of Biotechnology of Sfax Sfax Tunisia
| | - Youssef Gargouri
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases ENIS Sfax Tunisia
| | - Nabil Miled
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases ENIS Sfax Tunisia
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Sellami M, Louati H, Kamoun J, Kchaou A, Damak M, Gargouri Y. Inhibition of pancreatic lipase and amylase by extracts of different spices and plants. Int J Food Sci Nutr 2016; 68:313-320. [PMID: 27706951 DOI: 10.1080/09637486.2016.1237479] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The aim of this study is to search new anti-obesity and anti-diabetic agents from plant and spices crude extracts as alternative to synthetic drugs. The inhibitory effect of 72 extracts was evaluated, in vitro, on lipase and amylase activities. Aqueous extracts of cinnamon and black tea exhibited an appreciable inhibitory effect on pancreatic amylase with IC50 values of 18 and 87 μg, respectively. Aqueous extracts of cinnamon and mint showed strong inhibitory effects against pancreatic lipase with IC50 of 45 and 62 μg, respectively. The presence of bile salts and colipase or an excess of interface failed to restore the lipase activity. Therefore, the inhibition of pancreatic lipase, by extracts of spices and plants, belongs to an irreversible inhibition. Crude extract of cinnamon showed the strongest anti-lipase and anti-amylase activities which offer a prospective therapeutic approach for the management of diabetes and obesity.
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Affiliation(s)
- Mohamed Sellami
- a Ecole Nationale d'Ingénieurs de Sfax , Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Université de Sfax , Sfax , Tunisia
| | - Hanen Louati
- a Ecole Nationale d'Ingénieurs de Sfax , Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Université de Sfax , Sfax , Tunisia
| | - Jannet Kamoun
- a Ecole Nationale d'Ingénieurs de Sfax , Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Université de Sfax , Sfax , Tunisia
| | - Ali Kchaou
- b CHU Habib Bourguiba, Route de l'Ain , Sfax , Tunisia
| | - Mohamed Damak
- a Ecole Nationale d'Ingénieurs de Sfax , Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Université de Sfax , Sfax , Tunisia
| | - Youssef Gargouri
- a Ecole Nationale d'Ingénieurs de Sfax , Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Université de Sfax , Sfax , Tunisia
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21
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Jallouli R, Parsiegla G, Carrière F, Gargouri Y, Bezzine S. Efficient heterologous expression of Fusarium solani lipase, FSL2, in Pichia pastoris, functional characterization of the recombinant enzyme and molecular modeling. Int J Biol Macromol 2016; 94:61-71. [PMID: 27620466 DOI: 10.1016/j.ijbiomac.2016.09.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 09/05/2016] [Accepted: 09/08/2016] [Indexed: 11/25/2022]
Abstract
The gene coding for a lipase of Fusarium solani, designated as FSL2, shows an open reading frame of 906bp encoding a 301-amino acid polypeptide with a molecular mass of 30kDa. Based on sequence similarity with other fungal lipases, FSL2 contains a catalytic triad, consisting of Ser144, Asp198, and His256. FSL2 cDNA was subcloned into the pGAPZαA vector containing the Saccharomyces cerevisiae α-factor signal sequence and this construct was used to transform Pichia pastoris and achieve a high-level extracellular production of a FSL2 lipase. Maximum lipase activity was observed after 48h. The optimum activity of the purified recombinant enzyme was measured at pH 8.0-9.0 and 37°C. FSL2 is remarkably stable at alkaline pH values up to 12 and at temperatures below 40°C. It has high catalytic efficiency towards triglycerides with short to long chain fatty acids but with a marked preference for medium and long chain fatty acids. FSL2 activity is decreased at sodium taurodeoxycholate concentrations above the Critical Micelle Concentration (CMC) of this anionic detergent. However, lipase activity is enhanced by Ca2+ and inhibited by EDTA or Cu2+ and partially by Mg2+ or K+. In silico docking of medium chain triglycerides, monogalctolipids (MGDG), digalactolipids (DGDG) and long chain phospholipids in the active site of FSL2 reveals structural solutions.
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Affiliation(s)
- Raida Jallouli
- University of Sfax, Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, BPW 3038 Sfax, Tunisie
| | - Goetz Parsiegla
- CNRS, Aix Marseille Université, Enzymologie Interfaciale et Physiologie de la Lipolyse UMR7282, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Frédéric Carrière
- CNRS, Aix Marseille Université, Enzymologie Interfaciale et Physiologie de la Lipolyse UMR7282, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Youssef Gargouri
- University of Sfax, Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, BPW 3038 Sfax, Tunisie
| | - Sofiane Bezzine
- University of Sfax, Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, BPW 3038 Sfax, Tunisie.
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22
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Baîram D, Aissa I, Louati H, Othman H, Abdelkafi-Koubaa Z, Krayem N, El Ayeb M, Srairi-Abid N, Marrakchi N, Gargouri Y. Biochemical and monolayer characterization of Tunisian snake venom phospholipases. Int J Biol Macromol 2016; 89:640-6. [PMID: 27164498 DOI: 10.1016/j.ijbiomac.2016.05.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 05/03/2016] [Accepted: 05/04/2016] [Indexed: 11/17/2022]
Abstract
The present study investigated the kinetic and interfacial properties of two secreted phospholipases isolated from Tunisian vipers'venoms: Cerastes cerastes (CC-PLA2) and Macrovipera lebetina transmediterranea (MVL-PLA2). Results show that these enzymes have great different abilities to bind and hydrolyse phospholipids. Using egg-yolk emulsions as substrate at pH 8, we found that MVL-PLA2 has a specific activity of 1473U/mg at 37°C in presence of 1mM CaCl2. Furthermore the interfacial kinetic and binding data indicate that MVL-PLA2 has a preference to the zwitterionic phosphatidylcholine monolayers (PC). Conversely, CC-PLA2 was found to be able to hydrolyse preferentially negatively charged head group phospholipids (PG and PS) and exhibits a specific activity 9 times more important (13333U/mg at 60°C in presence of 3mM CaCl2). Molecular models of both CC-PLA2 and MVL-PLA2 3D structures have been built and their electrostatic potentials surfaces have been calculated. A marked anisotropy of the overall electrostatic charge distribution leads to a significantly difference in the dipole moment intensity between the two enzymes explaining the great differences in catalytic and binding properties, which seems to be governed by the electrostatic and hydrophobic forces operative at the surface of the two phospholipases.
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Affiliation(s)
- Douja Baîram
- Institut Pasteur de Tunis, Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, 13, Place Pasteur, BP 74, 1002 Tunis-Belvédère, Tunisia; Université de Tunis El Manar, Tunisia
| | - Imen Aissa
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, BP 1173, 3038 Sfax, Tunisia; Université de Sfax, Tunisia
| | - Hanen Louati
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, BP 1173, 3038 Sfax, Tunisia; Université de Sfax, Tunisia
| | - Houcemeddine Othman
- Institut Pasteur de Tunis, Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, 13, Place Pasteur, BP 74, 1002 Tunis-Belvédère, Tunisia; Université de Tunis El Manar, Tunisia
| | - Zaineb Abdelkafi-Koubaa
- Institut Pasteur de Tunis, Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, 13, Place Pasteur, BP 74, 1002 Tunis-Belvédère, Tunisia; Université de Tunis El Manar, Tunisia
| | - Najeh Krayem
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, BP 1173, 3038 Sfax, Tunisia; Université de Sfax, Tunisia
| | - Mohamed El Ayeb
- Institut Pasteur de Tunis, Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, 13, Place Pasteur, BP 74, 1002 Tunis-Belvédère, Tunisia; Université de Tunis El Manar, Tunisia
| | - Najet Srairi-Abid
- Institut Pasteur de Tunis, Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, 13, Place Pasteur, BP 74, 1002 Tunis-Belvédère, Tunisia; Université de Tunis El Manar, Tunisia
| | - Naziha Marrakchi
- Institut Pasteur de Tunis, Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, 13, Place Pasteur, BP 74, 1002 Tunis-Belvédère, Tunisia; Université de Tunis El Manar, Tunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, BP 1173, 3038 Sfax, Tunisia; Université de Sfax, Tunisia.
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23
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Aloui F, Maazoun B, Gargouri Y, Miled N. Optimization of oil retention in sesame based halva using emulsifiers and fibers: an industrial assay. J Food Sci Technol 2016; 53:1540-50. [PMID: 27570279 DOI: 10.1007/s13197-015-2116-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 10/13/2015] [Accepted: 11/13/2015] [Indexed: 11/28/2022]
Abstract
Oil bleeding during storage oleaginous seeds based confectionery products is a major problem affecting acceptance by consumers. Halva is a popular sweet food prepared from a sesame paste and a sugar mixture. The objective of this work was to improve the oil retention in this product by incorporating commercial fibers and emulsifiers: soya lecithin and monoglycerides (MG1 or MG2) during manufacturing. Oil retention yield was optimized on small batches, by response surface methodology using a central composite design applied with two factors, emulsifier concentration (0.25-2.25 %) and fibers concentration (0-2 %) at three levels. A centrifugation test was optimized to assess oil retention in halva samples. The experimental response (oil retention) was fitted with quadratic equations for each emulsifier, using multiple regression analysis. The emulsion stability increased with increasing the emulsifier concentration, particularly to 2.25 %. The oil bleeding assessed at 45 °C was slow but yielded similar results to those estimated by centrifugation test. The latter seems an attractive rapid method to quantify oil retention in oleaginous seeds and crops based food matrices. At an industrial scale, the increase of MG1 concentration to 2.25 % in halva enhances the oil retention of the product but does not affect its color or textural characteristics. Microscopic observations allowed us to explain high oil retention in this product by a homogeneous dispersion of oil droplets in the aqueous phase.
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Affiliation(s)
- F Aloui
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, 3038 Sfax, Tunisia
| | - B Maazoun
- The Factory Confiserie TRIKI-Le Moulin, Route de Gabes km 3, 3052 Sfax, Tunisie
| | - Y Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, 3038 Sfax, Tunisia
| | - N Miled
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, 3038 Sfax, Tunisia
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24
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Zarai Z, Balti R, Sila A, Ben Ali Y, Gargouri Y. Helix aspersa gelatin as an emulsifier and emulsion stabilizer: functional properties and effects on pancreatic lipolysis. Food Funct 2016; 7:326-36. [DOI: 10.1039/c5fo00963d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Emulsions are widely used in food and pharmaceutical applications for the encapsulation, solubilization, entrapment, and controlled delivery of active ingredients.
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Affiliation(s)
- Zied Zarai
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases
- National School of Engineers of Sfax
- University of Sfax
- 3038 Sfax
- Tunisia
| | - Rafik Balti
- Enzymes & Bioconversion Unit
- National School of Engineers of Sfax
- University of Sfax
- 3038 Sfax
- Tunisia
| | - Assaâd Sila
- Enzymes & Bioconversion Unit
- National School of Engineers of Sfax
- University of Sfax
- 3038 Sfax
- Tunisia
| | - Yassine Ben Ali
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases
- National School of Engineers of Sfax
- University of Sfax
- 3038 Sfax
- Tunisia
| | - Youssef Gargouri
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases
- National School of Engineers of Sfax
- University of Sfax
- 3038 Sfax
- Tunisia
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25
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Jallouli R, Ali MB, Charfeddine M, Gargouri-Bouzid R, Gargouri Y, Bezzine S. Heterologous overexpression and biochemical characterization of the (galactophospho)lipase from Fusarium solani in Pichia pastoris that is expressed in planta. Int J Biol Macromol 2015; 84:94-100. [PMID: 26675137 DOI: 10.1016/j.ijbiomac.2015.12.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Revised: 11/29/2015] [Accepted: 12/02/2015] [Indexed: 12/01/2022]
Abstract
High-level extracellular production of Fusarium solani (galactophospho)lipase, named FSL, was achieved using a Pichia pastoris X33 expression system. The (galactophospho) lipase encoding gene was cloned into pGAPZαA with the Saccharomyces cerevisiae α-factor signal sequence by two different ways. The two constructs consist of an additional sequence of a (His)6-tag of the vector fused to the N-terminus of this enzyme (tFSL) while the other expression vector was constructed without any additional sequence (rFSL). Compared to the native enzyme (nFSL) (18.75 mg/L), a high level secretion of rFSL (310 mg/L) and tFSL (240 mg/L) was achieved providing an important improvement in enzyme production. Biochemical characterization showed that pure recombinant proteins (rFSL and tFSL) presented similar behaviour towards triglycerides, phospholipid and galactolipid. Like the nFSL, rFSL and tFSL are active at high concentration of bile salts (4mM) and calcium ions enhanced lipase activity. During plant infection, transcripts of this fungal lipase gene were detected 3, 7 and 10 days post infection.
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Affiliation(s)
- Raida Jallouli
- University of SFAX, Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, BPW 3038 Sfax, Tunisia
| | - Madiha Bou Ali
- University of SFAX, Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, BPW 3038 Sfax, Tunisia
| | - Mariam Charfeddine
- University of SFAX, Enzymes et Bioconversion, ENIS route de Soukra, BPW 3038 Sfax, Tunisia
| | - Radhia Gargouri-Bouzid
- University of SFAX, Enzymes et Bioconversion, ENIS route de Soukra, BPW 3038 Sfax, Tunisia
| | - Youssef Gargouri
- University of SFAX, Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, BPW 3038 Sfax, Tunisia
| | - Sofiane Bezzine
- University of SFAX, Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, BPW 3038 Sfax, Tunisia.
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26
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Smichi N, Miled N, Gargouri Y, Fendri A. A newly thermoactive and detergent-stable lipase from annular sea bream (Diplodus annularis): Biochemical properties. Biotechnol Appl Biochem 2015; 64:79-86. [DOI: 10.1002/bab.1445] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 09/03/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Nabil Smichi
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases; ENIS route de Soukra; Sfax Tunisia
| | - Nabil Miled
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases; ENIS route de Soukra; Sfax Tunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases; ENIS route de Soukra; Sfax Tunisia
| | - Ahmed Fendri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases; ENIS route de Soukra; Sfax Tunisia
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27
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Bou Ali M, Jallouli R, Gargouri Y, Ben Ali Y. Evaluation of the recombinant turkey pancreatic lipase phospholipase activity: A monolayer study. Int J Biol Macromol 2015; 81:349-55. [DOI: 10.1016/j.ijbiomac.2015.08.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 07/22/2015] [Accepted: 08/10/2015] [Indexed: 10/23/2022]
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28
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Abdelkafi-Koubaa Z, Aissa I, Morjen M, Kharrat N, El Ayeb M, Gargouri Y, Srairi-Abid N, Marrakchi N. Interaction of a snake venom L-amino acid oxidase with different cell types membrane. Int J Biol Macromol 2015; 82:757-64. [PMID: 26433175 DOI: 10.1016/j.ijbiomac.2015.09.065] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 10/23/2022]
Abstract
Snake venom l-amino acid oxidases are multifunctional enzymes that exhibited a wide range of pharmacological activities. Although it has been established that these activities are primarily caused by the H2O2 generated in the enzymatic reaction, the molecular mechanism, however, has not been fully investigated. In this work, LAAO interaction with cytoplasmic membranes using different cell types and Langmuir interfacial monolayers was evaluated. The Cerastes cerastes venom LAAO (CC-LAAO) did not exhibit cytotoxic activities against erythrocytes and peripheral blood mononuclear cells (PBMC). However, CC-LAAO caused cytotoxicity on several cancer cell lines and induced platelet aggregation in dose-dependent manner. Furthermore, the enzyme showed remarkable effect against Gram-positive and Gram-negative bacteria. These activities were inhibited on the addition of catalase or substrate analogs, suggesting that H2O2 liberation× is required for these effects. Binding studies revealed that CC-LAAO binds to the cell surface and enables the production of highly localized concentration of H2O2 in or near the binding interfaces. On another hand, the interaction of CC-LAAO with a mimetic phospholipid film was evaluated, for the first time, using a monomolecular film technique. Results indicated that phospholipid/CC-LAAO interactions are not involved in their binding to membrane and in their pharmacological activities.
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Affiliation(s)
- Zaineb Abdelkafi-Koubaa
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis, Tunisia; Université de Tunis el Manar, 1068 Tunis, Tunisia.
| | - Imen Aissa
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, BP 1173, 3038 Sfax, Tunisia; Université de Sfax, Tunisia
| | - Maram Morjen
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis, Tunisia; Université de Tunis el Manar, 1068 Tunis, Tunisia
| | - Nadia Kharrat
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, BP 1173, 3038 Sfax, Tunisia; Université de Sfax, Tunisia
| | - Mohamed El Ayeb
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis, Tunisia; Université de Tunis el Manar, 1068 Tunis, Tunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, BP 1173, 3038 Sfax, Tunisia; Université de Sfax, Tunisia
| | - Najet Srairi-Abid
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis, Tunisia; Université de Tunis el Manar, 1068 Tunis, Tunisia
| | - Naziha Marrakchi
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis, Tunisia; Université de Tunis el Manar, 1068 Tunis, Tunisia; Faculté de Médecine de Tunis, 1007 Tunis, Tunisia
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Smichi N, Fendri A, Gargouri Y, Miled N. A High Salt-Tolerant Thermoactive Esterase from Golden Grey Mullet: Purification, Characterization and Kinetic Properties. J Food Biochem 2015. [DOI: 10.1111/jfbc.12129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nabil Smichi
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases; ENIS; Route de Soukra Sfax BP 3038 Tunisia
| | - Ahmed Fendri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases; ENIS; Route de Soukra Sfax BP 3038 Tunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases; ENIS; Route de Soukra Sfax BP 3038 Tunisia
| | - Nabil Miled
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases; ENIS; Route de Soukra Sfax BP 3038 Tunisia
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Bouchaâla E, BouAli M, Ali YB, Miled N, Gargouri Y, Fendri A. Biochemical Characterization and Molecular Modeling of Pancreatic Lipase from a Cartilaginous Fish, the Common Stingray (Dasyatis pastinaca). Appl Biochem Biotechnol 2015; 176:151-69. [DOI: 10.1007/s12010-015-1564-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 03/12/2015] [Indexed: 11/29/2022]
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Kamoun J, Schué M, Messaoud W, Baignol J, Point V, Mateos-Diaz E, Mansuelle P, Gargouri Y, Parsiegla G, Cavalier JF, Carrière F, Aloulou A. Biochemical characterization of Yarrowia lipolytica LIP8, a secreted lipase with a cleavable C-terminal region. Biochim Biophys Acta Mol Cell Biol Lipids 2015; 1851:129-40. [DOI: 10.1016/j.bbalip.2014.10.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 10/23/2014] [Accepted: 10/27/2014] [Indexed: 10/24/2022]
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Smichi N, Fendri A, Gargouri Y, Miled N. Positional specificity of sardine digestive lipase in the hydrolysis of triacylglycerols and analogs. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201400100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nabil Smichi
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesSfaxTunisia
| | - Ahmed Fendri
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesSfaxTunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesSfaxTunisia
| | - Nabil Miled
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesSfaxTunisia
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Fendri A, Frikha F, Louati H, Bou Ali M, Gargouri H, Gargouri Y, Miled N. Cloning and molecular modeling of a thermostable carboxylesterase from the chicken uropygial glands. J Mol Graph Model 2014; 56:1-9. [PMID: 25541525 DOI: 10.1016/j.jmgm.2014.11.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 11/24/2014] [Accepted: 11/30/2014] [Indexed: 01/09/2023]
Abstract
Starting from total uropygial glands mRNAs, chicken uropygial carboxylesterase (cuCES) cDNA was synthesized by RT-PCR and cloned into the PGEM-T vector. Amino acid sequence of the cuCES is compared to that of human liver carboxylesterase 1 (hCES1). Given the high amino acid sequence homology between the two enzymes, a 3-D structure model of the chicken carboxylesterase was built using the structure of hCES1 as template. By following this model and utilizing molecular dynamics (MD) simulations, the resistance of the chicken carboxylesterase at high temperatures could be explained. The docking of substrate analogs into the cuCES active site was used to explain the fact that the chicken carboxylesterase cannot hydrolyze efficiently large substrate molecules.
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Affiliation(s)
- Ahmed Fendri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), route de Soukra, BPW 3038 Sfax, Tunisia.
| | - Fakher Frikha
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), route de Soukra, BPW 3038 Sfax, Tunisia
| | - Hanen Louati
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), route de Soukra, BPW 3038 Sfax, Tunisia
| | - Madiha Bou Ali
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), route de Soukra, BPW 3038 Sfax, Tunisia
| | - Hela Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), route de Soukra, BPW 3038 Sfax, Tunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), route de Soukra, BPW 3038 Sfax, Tunisia
| | - Nabil Miled
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), route de Soukra, BPW 3038 Sfax, Tunisia
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Affiliation(s)
- Madiha Bou Ali
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesUniversité de Sfax, BPWSfaxTunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesUniversité de Sfax, BPWSfaxTunisia
| | - Yassine Ben Ali
- Laboratoire de Biochimie et de Génie Enzymatique des LipasesUniversité de Sfax, BPWSfaxTunisia
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Abdelkafi-Koubaa Z, Jebali J, Othman H, Morjen M, Aissa I, Zouari-Kesentini R, Bazaa A, Ellefi AA, Majdoub H, Srairi-Abid N, Gargouri Y, El Ayeb M, Marrakchi N. A thermoactive l-amino acid oxidase from Cerastes cerastes snake venom: Purification, biochemical and molecular characterization. Toxicon 2014; 89:32-44. [DOI: 10.1016/j.toxicon.2014.06.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Revised: 06/14/2014] [Accepted: 06/25/2014] [Indexed: 11/28/2022]
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Kharrat N, Aissa I, Sghaier M, Bouaziz M, Sellami M, Laouini D, Gargouri Y. Lipophilization of ascorbic acid: a monolayer study and biological and antileishmanial activities. J Agric Food Chem 2014; 62:9118-9127. [PMID: 25148258 DOI: 10.1021/jf5029398] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Ascorbyl lipophilic derivatives (Asc-C2 to Asc-C(18:1)) were synthesized in a good yield using lipase from Staphylococcus xylosus produced in our laboratory and immobilized onto silica aerogel. Results showed that esterification had little effect on radical-scavenging capacity of purified ascorbyl esters using DPPH assay in ethanol. However, long chain fatty acid esters displayed higher protection of target lipids from oxidation. Moreover, compared to ascorbic acid, synthesized derivatives exhibited an antibacterial effect. Furthermore, ascorbyl derivatives were evaluated, for the first time, for their antileishmanial effects against visceral (Leishmania infantum) and cutaneous parasites (Leishmania major). Among all the tested compounds, only Asc-C10, Asc-C12, and Asc-C(18:1) exhibited antileishmanial activities. The interaction of ascorbyl esters with a phospholipid monolayer showed that only medium and unsaturated long chain (Asc-C10 to Asc-C(18:1)) derivative esters were found to interact efficiently with mimetic membrane of leishmania. These properties would make ascorbyl derivatives good candidates to be used in cosmetic and pharmaceutical lipophilic formulations.
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Affiliation(s)
- Nadia Kharrat
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Université de Sfax , Route de Soukra, BPW 1173, 3038 Sfax, Tunisia
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Karray A, Amara S, Carrière F, Gargouri Y, Bezzine S. Renaturation and one step purification of the chicken GIIA secreted phospholipase A2 from inclusion bodies. Int J Biol Macromol 2014; 67:85-90. [DOI: 10.1016/j.ijbiomac.2014.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 03/03/2014] [Accepted: 03/06/2014] [Indexed: 11/24/2022]
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Sellami M, Châari A, Aissa I, Bouaziz M, Gargouri Y, Miled N. Newly synthesized dopamine ester derivatives and assessment of their antioxidant, antimicrobial and hemolytic activities. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.07.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Karray A, Bou Ali M, Amara S, Carrière F, Gargouri Y, Bezzine S. Retraction notice to "Renaturation and one step purification of the chicken GIIA secreted phospholipase A2 from inclusion bodies". Int J Biol Macromol 2013; 60:R1. [PMID: 24049788 DOI: 10.1016/j.ijbiomac.2013.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Louati H, Krayem N, Fendri A, Aissa I, Sellami M, Bezzine S, Gargouri Y. A thermoactive secreted phospholipase A2 purified from the venom glands of Scorpio maurus: Relation between the kinetic properties and the hemolytic activity. Toxicon 2013; 72:133-42. [DOI: 10.1016/j.toxicon.2013.06.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 05/22/2013] [Accepted: 06/26/2013] [Indexed: 10/26/2022]
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Bou Ali M, Karray A, Gargouri Y, Ben Ali Y. N-terminal domain of turkey pancreatic lipase is active on long chain triacylglycerols and stabilized by colipase. PLoS One 2013; 8:e71605. [PMID: 23977086 PMCID: PMC3745449 DOI: 10.1371/journal.pone.0071605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Accepted: 07/01/2013] [Indexed: 11/26/2022] Open
Abstract
The gene encoding the TPL N-terminal domain (N-TPL), fused with a His6-tag, was cloned and expressed in Pichia pastoris, under the control of the glyceraldehyde-3-phosphate dehydrogenase (GAP) constitutive promoter. The recombinant protein was successfully expressed and secreted with an expression level of 5 mg/l of culture medium after 2 days of culture. The N-TPL was purified through a one-step Ni-NTA affinity column with a purification factor of approximately 23-fold. The purified N-TPL, with a molecular mass of 35 kDa, had a specific activity of 70 U/mg on tributyrin. Surprisingly, this domain was able to hydrolyse long chain TG with a specific activity of 11 U/mg using olive oil as substrate. This result was confirmed by TLC analysis showing that the N-TPL was able to hydrolyse insoluble substrates as olive oil. N-TPL was unstable at temperatures over 37°C and lost 70% of its activity at acid pH, after 5 min of incubation. The N-TPL exhibited non linear kinetics, indicating its rapid denaturation at the tributyrin–water interface. Colipase increased the N-TPL stability at the lipid-water interface, so the TPL N-terminal domain probably formed functional interactions with colipase despite the absence of the C-terminal domain.
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Affiliation(s)
- Madiha Bou Ali
- Laboratory of Biochemistry, National Engineering School of Sfax (ENIS), University of Sfax, Sfax, Tunisia
| | - Aida Karray
- Laboratory of Biochemistry, National Engineering School of Sfax (ENIS), University of Sfax, Sfax, Tunisia
| | - Youssef Gargouri
- Laboratory of Biochemistry, National Engineering School of Sfax (ENIS), University of Sfax, Sfax, Tunisia
| | - Yassine Ben Ali
- Laboratory of Biochemistry, National Engineering School of Sfax (ENIS), University of Sfax, Sfax, Tunisia
- * E-mail:
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Smichi N, Gargouri Y, Miled N, Fendri A. A grey mullet enzyme displaying both lipase and phospholipase activities: Purification and characterization. Int J Biol Macromol 2013; 58:87-94. [DOI: 10.1016/j.ijbiomac.2013.03.056] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 03/07/2013] [Accepted: 03/24/2013] [Indexed: 11/26/2022]
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Chaari A, Horchani H, Frikha F, Verger R, Gargouri Y, Ladjimi M. Surface behavior of α-Synuclein and its interaction with phospholipids using the Langmuir monolayer technique: A comparison between monomeric and fibrillar α-Synuclein. Int J Biol Macromol 2013; 58:190-8. [DOI: 10.1016/j.ijbiomac.2013.03.057] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Revised: 03/12/2013] [Accepted: 03/23/2013] [Indexed: 11/16/2022]
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Karray A, Bou Ali M, Amara S, Carrière F, Gargouri Y, Bezzine S. Renaturation and one step purification of the chicken GIIA secreted phospholipase A2 from inclusion bodies. Int J Biol Macromol 2013; 60:28-32. [PMID: 23688417 DOI: 10.1016/j.ijbiomac.2013.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 04/23/2013] [Accepted: 05/09/2013] [Indexed: 11/17/2022]
Abstract
The cDNA coding for a mature protein of 123 amino acids, containing all of the structural features of catalytically active group II sPLA2, has been amplified. The gene has been cloned into the bacterial expression vector pET-21a(+), which allows protein over-expression as inclusion bodies and enables about 3 mg per litre of pure refolded fully active enzyme to be obtained. Recombinant expression of chPLA2-IIA in Escherichia coli shows that the enzyme is Ca(2+) dependent, maximally active at pH 8-9, and hydrolyses phosphatidylglycerol versus phosphatidylcholine with a 15-fold preference. The ability to express reasonably large amounts of the sPLA2 Group IIA, compared to that obtained with the classical purification will provide a basis for future site directed mutagenesis studies of this important enzyme.
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Affiliation(s)
- Aida Karray
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, University of Sfax, ENIS Route de Soukra, BP 1173, 3038, Tunisia.
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Daoud L, Kamoun J, Ali MB, Jallouli R, Bradai R, Mechichi T, Gargouri Y, Ali YB, Aloulou A. Purification and biochemical characterization of a halotolerant Staphylococcus sp. extracellular lipase. Int J Biol Macromol 2013; 57:232-7. [PMID: 23500438 DOI: 10.1016/j.ijbiomac.2013.03.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 02/28/2013] [Accepted: 03/01/2013] [Indexed: 10/27/2022]
Abstract
We have isolated a lipolytic halotolerant bacterium, designated as CJ3, that was identified as a Staphylococcus sp. Culture conditions were optimized and the highest extracellular lipase production amounting to 5 U/ml was achieved after 24 h of cultivation. The extracellular lipase was purified 24-fold by ammonium sulfate precipitation and a Sephacryl S-200 chromatography, and its molecular mass was found to be around 38 kDa, as revealed by SDS-PAGE and gel filtration. The lipase substrate specificity was investigated using short (tributyrin) and long (olive oil) chain triglyceride substrates. The lipase was inhibited by submicellar concentrations of Triton X-100, and maximum specific activities were found to be 802 U/mg on tributyrin and 260 U/mg on olive oil at pH 8.0 and 45 °C. The lipase was fairly stable in the pH range from 6.0 to 9.0, and about 69% of its activity was retained after incubation at 45 °C for 60 min. The enzyme showed a high tolerance to a wide range of salt concentration and a good stability in organic solvents, especially in long-chain alcohols.
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Affiliation(s)
- Lobna Daoud
- University of Sfax, ENIS - Laboratory of Biochemistry and Enzymatic Engineering of Lipases, 3038 Sfax, Tunisia
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Aissa I, Bouaziz M, Frikha F, Mansour RB, Gargouri Y. Synthesized tyrosyl hydroxyphenylacetate, a novel antioxidant, anti-stress and antibacterial compound. Process Biochem 2012. [DOI: 10.1016/j.procbio.2012.09.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Zarai Z, Balti R, Mejdoub H, Gargouri Y, Sayari A. Process for extracting gelatin from marine snail (Hexaplex trunculus): Chemical composition and functional properties. Process Biochem 2012. [DOI: 10.1016/j.procbio.2012.06.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Smichi N, Fendri A, Zarai Z, Bouchaala E, Chérif S, Gargouri Y, Miled N. Lipolytic activity levels and colipase presence in digestive glands of some marine animals. Fish Physiol Biochem 2012; 38:1449-1458. [PMID: 22457120 DOI: 10.1007/s10695-012-9633-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Accepted: 03/12/2012] [Indexed: 05/31/2023]
Abstract
Studies on the digestive secretions in aquatic animals can elucidate certain aspects of their nutritive physiology. The aim of the present study was to compare the digestive lipase and phospholipase activities in ten marine species belonging to four classes following the taxonomic classification of marine organisms. All aquatic digestive tissues tested are equipped with lipase and phospholipase activities, assuming the hydrolysis of fat-rich food. The lipolytic activities determined in the pancreases of cartilaginous fishes were greater than those in bony fishes, molluscs and crustaceans. This finding might be explained by the strong digestive utilization of fat-rich macronutrients by these carnivorous fishes. A trend of activities and stabilities at different pH and temperatures for crude lipases and phospholipases from these aquatic animals suggests that the optimum pH and temperature for marine lipases are species dependent. Interestingly, the sardine caecal lipase and phospholipase were found to be mostly stable in a broad range of acidic pH values. The maximum activities of lipolytic enzymes from the hepatopancreases of Hexaplex trunculus (molluscs) and Carcinus mediterranus (crustaceans) were found to be 50 and 60 °C, respectively, whereas the optimal temperature of lipolytic enzymes for the other species was classically around 40 °C. Thermoactivity of molluscs' lipolytic preparations makes them potential candidates in industrial applications. Among digestive glands studied, only pancreas (cartilaginous fish) contained the classically known colipase. Regarded as the most primitive living jawed vertebrates, cartilaginous fishes represented by sharks and rays could be considered as the oldest vertebrates possessing a complex digestive system like that of mammals.
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Affiliation(s)
- Nabil Smichi
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, route de Soukra, 1173, Sfax, BP, Tunisia
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Sellami M, Ghamgui H, Frikha F, Gargouri Y, Miled N. Enzymatic transesterification of palm stearin and olein blends to produce zero-trans margarine fat. BMC Biotechnol 2012; 12:48. [PMID: 22889174 PMCID: PMC3469396 DOI: 10.1186/1472-6750-12-48] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Accepted: 08/02/2012] [Indexed: 11/11/2022] Open
Abstract
Background Food industries aim to replace trans fat in their products by formulations having equivalent functionality and economic viability. Enzymatic transesterification can be a technological option to produce trans free fats targeting commercial applications. Results Palm stearin and palm olein blends in different ratios were enzymatically transesterified in a solvent free system using a Rhizopus oryzae lipase immobilised onto CaCO3 to produce a suitable fat for margarine formulation. Slip melting points and triacylglycerols profiles were evaluated upon transesterification. Results indicated that all transesterified blends had lower slip melting points than their non transesterified counterparts. Furthermore, the triacylglycerols profile showed a decrease in the concentration of the high melting point triacylglycerols. The rheological analysis showed that margarine prepared with the transesterified blend showed a better spreadability than that of a control margarine prepared with non transesterified fat. Adding powder of dry bark orange to margarine preparation improved its colour and fairly affected its spreadability and rheological behaviour. The margarine prepared with transesterified fat displayed a rheological behaviour that was comparable to that of commercial sample. Conclusions This study is an ecofriendly approach to the utilization of relatively low value bioresources like palm stearin and palm olein for making margarine free of trans fatty acids that are now implicated as risk factor for heart diseases.
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Affiliation(s)
- Mohamed Sellami
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Université de Sfax, route de Soukra, BPW 3038-1173 Sfax, Tunisia
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