References of "Bakri, Y"
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See detailIsolation and identification of a new Bacillus strain for amylase production
Bakri, Y.; Ammouneh, H.; El-Khouri, S. et al

in Research in Biotechnology (2012), 3(6), 51-58

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See detailCOMPARISON BETWEEN CONTINUOUS AND BATCH PROCESSING TO PRODUCE XYLANASE BY Penicillium canescens 10-10c
Bakri, Y.; Akeed, Y.; Thonart, Philippe ULg

in Brazilian Journal of Chemical Engineering (2012), 29(3), 441-447

Penicillium canescens 10-10c strain was cultivated on barley straw hydrolysate as a soluble nutrient source and as inducer for xylanase production. Barley straw hydrolysate was obtained by treatment of ... [more ▼]

Penicillium canescens 10-10c strain was cultivated on barley straw hydrolysate as a soluble nutrient source and as inducer for xylanase production. Barley straw hydrolysate was obtained by treatment of barley straw with NaOH or hot water. In shake flask cultures, NaOH treatment was found to increase the biomass production, but was not accompanied by an increase in xylanase production. The best xylanase production (54 U/ml) was observed on hydrolyzed extract from barley straw treated with hot water (100 ºC) for 3 hours. Enzyme production was further improved by scaling up the cultivation process to a 3-L stirred tank bioreactor. For batch cultivations in the bioreactor, the maximum xylanase productivity reached 1.31 and 0.46 U/ml/h, respectively, after 96 and 168 hours of cultivation. However, xylanase productivity reached 3.46 U/ml/h in the continuous culture. These results suggest that xylanase can be produced efficiently by Penicillium canescens 10-10c in continuous culture from an inexpensive source such as barley straw hydrolysate. [less ▲]

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See detailIsolation and identification of two new fungal strains for xylanase production
Bakri, Y.; Masson, M.; Thonart, Philippe ULg

in Applied Biochemistry and Biotechnology (2010), 162(6), 1626-1634

Fungi are well known for their ability to excrete enzymes into the environment. The aim of this work was to evaluate xylanase production by fungi isolated from soil. One hundred and thirty-six fungal ... [more ▼]

Fungi are well known for their ability to excrete enzymes into the environment. The aim of this work was to evaluate xylanase production by fungi isolated from soil. One hundred and thirty-six fungal isolates were screened for xylanase production. Two xylanase producing isolates, FSS117 and FSS129, were identified on the basis of analyses of 5,8S gene sequencing. The closest phylogenetic neighbors according to 5,8S gene sequence data for the two isolates were Aspergillus tubingensis and Aspergillus terreus, respectively. When birchwood xylan or corn cob hulls was used as a substrate for 5 days under submerged culture cultivation, xylanase production from A. terreus FSS129 was 113 and 174 IU ml -1, respectively. The pH and temperature for optimum xylanase activity were 8 and 65∈°C. © 2010 Springer Science+Business Media, LLC. [less ▲]

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See detailIsolation and identification of a new fungal strain for amylase biosynthesis
Bakri, Y.; Masson, M.; Thonart, Philippe ULg

in Polish Journal of Microbiology (2009), 58(3), 269-273

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See detailEtude de l’influence d’un nouveau mobile d’agitation sur le transfert d’oxygène et la production de xylanases par Penicillium canescens
Bakri, Y.; Jacques, Ph.; Shi, L. et al

Poster (2003, September)

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See detailXylanase Production By Penicillium Canescens 10-10c In Solid-State Fermentation
Bakri, Y.; Jacques, Philippe; Thonart, Philippe ULg

in Applied Biochemistry and Biotechnology (2003), 105

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See detailEffects of a new impeller on oxygen transfer rates in 5L-bioreactors
Bakri, Y.; Jacques, Ph.; Shi, K. et al

Poster (2001, May)

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