2017
DOI: 10.4267/dechets-sciences-techniques.3703
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Optimisation à l’aide d’un plan d’expériences de la production d’une protéase fongique sur milieu à base de déchets agro-industriels

Abstract: The production of neutral protease was carried out by the cultivation of Aspergillus oryzae Ahlburg (Cohen) 1042.72 in submerged fermentation using orange waste resulting from juice processing as a basal medium enriched with agro-industrial wastes. Optimization of the enzyme synthesis was achieved using the statistical method of Plackett-Burman design with N = 8 experimentsand N-1 factors; five real (corn-steep liquor, pH, salt, decommissioned dates, whey) and two errors. The results were modeled using a linea… Show more

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Cited by 1 publication
(5 citation statements)
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“…The presence of mineral salts in the culture medium has no significant effect on biomass. The non-negligible composition of dates in the mineral matter (Kamel 1979;Nancib et al, 2001;Benkahoul et al, 2017) seems sufficient for the mold growth. Therefore, mineral supplementation is not necessary.…”
Section: Discussionmentioning
confidence: 99%
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“…The presence of mineral salts in the culture medium has no significant effect on biomass. The non-negligible composition of dates in the mineral matter (Kamel 1979;Nancib et al, 2001;Benkahoul et al, 2017) seems sufficient for the mold growth. Therefore, mineral supplementation is not necessary.…”
Section: Discussionmentioning
confidence: 99%
“…The acid protease activity is measured at pH 5 on casein according to Anson's method, (1938) modified and described by Mechakra et al (1999) and Benkahoul et al (2017). The nonprotein nitrogen compounds (tyrosine) produced are assayed by colorimetry, according to Folin and Ciocalteu (1927) referring to a calibration curve of tyrosine.…”
Section: Protease Activitymentioning
confidence: 99%
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