Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Hadjer, Zaak"'
Publikováno v:
Acta Parasitologica. 67:1393-1400
This study aimed to develop a rapid spectrophotometric method for counting coccidian oocysts in broilers feces, based on a standard count method "Malassez cell".Therefore, a raw suspension containing purified oocysts of Eimeria known to parasitize br
Autor:
Hamza Ahmed-Laloui, Hadjer Zaak, Abderrahman Rahmani, Imad Kashi, Smain Chemat, Mohamed Djamel Miara, Nora Cherb, Mouna Derdour
Publikováno v:
Natural Product Research. 36:6344-6352
Artemisinin, a natural product, has received considerable attention in the last few years as a potent antimalarial drug. This study reports the presence of Artemisinin in three Algerian wild Artemisia species assessed by HPLC method: A. herba-alba (A
Publikováno v:
Catalysts, Vol 7, Iss 9, p 250 (2017)
The enzyme β-galactosidase from Aspergillus oryzae has been immobilized in aminated (MANAE)-agarose beads via glutaraldehyde chemistry using different strategies. The immobilization on MANAE-supports was first assayed at different pH values (this ga
Externí odkaz:
https://doaj.org/article/4be3ff0d64944f1a911f8fe02b6f83ef
Autor:
Hadjer Zaak, Farida Ghalmi, Abderrahmen Selmania, Abdenour Klikha, Abderrahmen Rahmani, Noura Chareb, Hamza Ahmed Laloui, Karima Oufroukh
Publikováno v:
Acta parasitologica. 66(4)
This study aims to assess the ability of vegetable oil of Pistacia lentiscus L. (lentiscus oil) in stimulating growth performance of broiler chickens and protecting them against coccidiosis. For this purpose, an in vitro test was first carried out to
Autor:
Hadjer, Zaak, Hamdi, Bendif, Khellaf, Rebbas, Lina, Aouati, Asma, Abdennour, Asma, Hamza, Joice Guileine, Nkuimi Wandjou, Filippo, Maggi
Publikováno v:
Natural product research. 36(9)
The phytochemical and biological properties of
Autor:
Asma Abdennour, Asma Hamza, Hadjer Zaak, Filippo Maggi, Hamdi Bendif, Lina Aouati, Khellaf Rebbas, Joice Guileine Nkuimi Wandjou
The phytochemical and biological properties of Ononis alba Poir L. (Fabaceae) were investigated for the first time in this study. The chemical composition of the essential oil obtained from the aerial parts was analysed by GC-MS. The phenolic content
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a988d0518bac88ed9ade11425006239
Publikováno v:
Process Biochemistry. 64:200-205
The paper shows the preparation of a new heterofunctional agarose support: amino-vinylsulfone. This has been employed to immobilize the interesting enzyme β-galactosidase from Aspergillus oryzae. The enzyme cannot be immobilized on just vinylsulfone
Autor:
Laura Fernandez-Lopez, Hadjer Zaak, Roberto Fernandez-Lafuente, Mohamed Sassi, Cristina Otero
Publikováno v:
Enzyme and Microbial Technology. 106:67-74
Phospholipase Lecitase Ultra (LU) and lipase from Thermomyces lanuginosus (TLL) have been immobilized under conditions that favor either enzyme crowding or enzyme dispersion. Highly loaded LU was more stable than low loaded biocatalyst under all stud
Autor:
Jakub F. Kornecki, Laura Fernandez-Lopez, V. Cortés Corberán, Roberto Fernandez-Lafuente, Hadjer Zaak, El-Hocine Siar, Mohamed Sassi
Publikováno v:
Process Biochemistry. 61:95-101
Coimmobilization of enzymes using polyethylenimine (PEI) as glue permits to reuse the most stable enzyme, immobilized on the support, after its incubation at high ionic strength to desorb the other enzyme, immobilized via ion exchange. However, this
Autor:
Jakub F. Kornecki, Mohammed Nasreddine Zidoune, Roberto Fernandez-Lafuente, Hadjer Zaak, Oveimar Barbosa, El-Hocine Siar
Publikováno v:
Process Biochemistry. 58:98-104
A protein extract containing ficin was immobilized on glyoxyl agarose at pH 10 and 25 °C. The free enzyme remained fully active after 24 h at pH 10. However the enzyme immobilized on the support retained only 30% of the activity after this time usin