faouzi laachari lipase activity

(PDF) Improvement of a lipolytic activity assay protocol ...

The Lifshitz−van der Waals, acid−base, and total surface free energies of various wood species were calculated from contact angle measurements. For spruce (Picea abies) and meranti (Shorea spp.) the …

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The impact of Thymus vulgaris extractives on cedar wood ...

Moroccan Journal of Biology 2014/N 11 Biochemical study of lipases from Bacillus subtilis Faouzi Laachari1, Fatimazahra El Bergadi1,2, Wifak Bahafid1,2, Adel Sayari3, Soumya Elabed1,2, Iraqui ...

Laboratoire : Biotechnologie Microbienne - Université Sidi ...

1. Introduction. Significant rising concern in the field of enzymology on account of wider applications of enzymes in various chemical processes has been increased since a few decades (Pliego et al., 2015).Due to versatile applications, lipases are the third most abundantly used enzymes after proteases and amylases (carbohydrases) (Ülker et al., 2011).

Bacterial lipases: A review on purification and ...

The main objective of this work was to identify novel lipases of industrial interest. In this paper, Aspergillus flavus lipase (AFL) was isolated from the traditional tannery of Fez city in Morocco; it kept its stability even in the presence of high concentrations of detergent from 0 to 10 mM sodium deoxycholate (NaDC). Bile salts showed no inhibitory effect on the lipolytic activity, whereas ...

Cellulolytic potential and filter paper activity of fungi ...

Mar 01, 2015· The activity of lipase was examined within the pH range of 6.0-10.0 and the effect of pH on lipase stability was determined by incubating the lipase fraction in various buffer solutions ranging from 3.0 to 10.0 for 24 h at room temperature. Results: The results showed that Bacillus pumilus is a strain that produce non-inducible lipase.

Biochemical study of lipases from Bacillus subtilis

Biochemical study of lipase from Bacillus subtilis. ... All content in this area was uploaded by Faouzi Laachari on Jul 25, 2015 ... of lipase from Bacillus subtilis.

Isolement des microorganismes producteurs de lipases à ...

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African Journal of Biotechnology - articles

Higher tolerance of a novel lipase from Aspergillus flavus to the presence of free fatty acids at lipid/water interface Faouzi Laachari1*, Fatimazahra El Bergadi1, Moulay Sadiki1, Adel Sayari3, Wifak Bahafid1, Soumya Elabed2, Iraqui Mohammed1 and Saad Kor Ibnsouda1 1Laboratoire de Biotechnologie Microbienne. Université Sidi Mohamed Ben ...

Endoglucanase production by paper‐degrading mycoflora ...

A specific activity of 1800 U/mg was measured on tributyrin or olive oil emulsion as substrate. This newly isolated lipase can be considered as a good candidature for industrial and biotechnological applications. Keywords : Trichosporon coremiiforme , lipase, purification, thermoactive African Journal of Biotechnology Vol. 12(28), pp. 4503-4511

Improvement of a lipolytic activity assay protocol to ...

Mes remerciements s’adressent également à Monsieur F.LAACHARI, Docteur pour l’aide, la compréhension, ses conseils, pour m’avoir encouragé et son aide si précieuse. Je remercie également Madame S.ELABED professeur au CURI, Monsieur O.EL FARRICHA et Monsieur M.A.TAHRI JOUTI, professeurs à la FSTF, d’avoir

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Influenced by a range of parameters such as media charge level ball filling, slurry filling, slurry concentration and mill speed. Keywords. Tumbling mills, mill power draw, wet grinding, mill speed, slurry filling Bahonar University, Kerman 7617643155, Iran. pool …

Biochemical Characterization of a New Thermostable Lipase ...

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(PDF) Biochemical study of lipase from Bacillus subtilis

How technology can save costs and drive greater efficiency in EHS and sustainability management SPONSORED isometrix. In mines, and Vegas alertness matters …

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Biochemical Characterization of a New Thermostable Lipase from Bacillus Pumilus Strain. ... Faouzi Laachari, Soumya Elabed, Adel Sayari, Iraqui Mohammed, El Hassan Harchali, Saad Kor Ibnsouda

Isolation, Purification, and Characterization of a Cold ...

In this work, the effect of three Thymus vulgaris extract fractions on physicochemical properties of cedar wood was examined. Indeed, hydrophobicity, surface tension components ΔGiwi, electron donor (γ−) …

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The main obstacle to using lipase as a catalyst in industrial scale biodiesel production is the cost and availability of the enzyme. To overcome this obstacle, the potential of using a whole cell biocatalyst (for at least partial in situ lipase production) was evaluated as a means to reduce the cost of the lipase. ... Faouzi Laachari…

The Lipase from Staphylococcus aureus - Simons - 1996 ...

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African Journal of Biotechnology

Oct 18, 2013· The content of libraries in Fez is an important historical testimony and a treasure of knowledge of several civilizations. Unfortunately, this cultural heritage has suffered deterioration caused by many factors, including microbial deterioration specifically by cellulolytic fungi. The aim of our study was the identification and characterization of the microflora that damage historical ...

African Journal of Biochemistry Research - higher ...

Purification and Characterization of a Novel Thermostable Lipase from Aspergillus Flavus. ... Faouzi Laachari. Abstract. This newly isolated lipase can be considered as a good candidature in synthesis reactions such as esterification, transesterification and interesterification which are used in industrial and biotechnological applications. ...

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A total of 31 filamentous fungi were isolated from deteriorated paper of ancient books. Nine of these isolates were screened positive for the ability to degrade carboxymethylcellulose (CMC). The ability of the nine isolates to produce filter paper activity (FPUase) in liquid media as well as the effect of temperature and pH were also studied.

International Journal of Research (IJR)

Influenced by a range of parameters such as media charge level ball filling, slurry filling, slurry concentration and mill speed. Keywords. Tumbling mills, mill power draw, wet grinding, mill speed, …

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South Africa South Africa Diamonds, gold, and imperialist intervention 18701902 South Africa experienced a transformation between 1870, when the diamond rush to Kimberley began, and 1902, when the South African.

Surface Energy Determinations of Wood: Comparison of ...

Faouzi Laachari, Fatimazahra El Bergadi, Saad Kor Ibnsouda Laboratoire de Biotechnologie Microbienne. Faculté des Sciences et Techniques de Fès- Saïs. Université Sidi Mohamed Ben Abdellah. B.P. 2202 – Route d’Imouzzer. Fès-Maroc E-mail: [email protected] Abstract Aspergillus flavus lipase (AFL) was found as a true lipase.

Purification and Characterization of a Novel Thermostable ...

Faouzi Laachari1*, Hajar Maâtaoui1, ... According to the results, we noticed that the lipase activity performance measured by the modified protocol was much improved, scoring a maximum of 14. ...

Scilit | Article - Higher tolerance of a novel lipase from ...

Lipase activity determination The lipase activity was measured titrimetrically at pH 8.2 and 45°C with a pH-stat under standard conditions using tributyrin (0.25 ml) in 30 ml of 2.5 mM Tris–HCl pH 8.2, 2 mM CaCl 2, 2 mM NaDC or olive oil emulsion (10 ml in Turk J Biochem 2015; 40(1):8-14 9 Laachari …

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Faouzi Laachari, Soumya Elabed, Adel Sayari, Iraqui Mohammed, El Hassan Harchali, Saad Kor Ibnsouda. (2013). Biochemical characterization of a thermoactive and thermostable lipase from a …

Higher tolerance of a novel lipase from Aspergillus flavus ...

The Lipase from Staphylococcus aureus. ... 3 Laachari Faouzi, El Bergad Fatimazahra, Sadiki Moulay, ... Importance of the Ca2+-binding sites in the N-catalytic domain of a family I.3 lipase for activity and stability, Protein Engineering Design and Selection, 2008, 21, 12, 737CrossRef;

Biochemical characterization of a new thermostable lipase ...

Improvement of a lipolytic activity assay protocol to increase the efficiency of the lipases activity measurement and validation by infrared spectroscopy ... by Faouzi Laachari on Nov 15, 2015 ...