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  • Title: Optimization of inulinase production from low cost substrates using Plackett-Burman and Taguchi methods.
    Author: Abd El Aty AA, Wehaidy HR, Mostafa FA.
    Journal: Carbohydr Polym; 2014 Feb 15; 102():261-8. PubMed ID: 24507281.
    Abstract:
    Four marine-derived fungal isolates were screened for the production of inulinase enzyme from low cost substrates under solid state fermentation (SSF), one of them identified as Aspergillus terreus showed the highest inulinase activity using artichoke leaves as a solid substrate. Sequential optimization strategy, based on statistical experimental designs was employed to optimize the composition of the medium, including Plackett-Burman and Taguchi's (L9 3(4)) orthogonal array designs. Under the optimized conditions, inulinase activity (21.058 U/gds) reached the predicted maximum activity derived from the taguchi methodology, which increased about 4.79-folds the initial production medium. Fructose was produced, as an end product of inulin hydrolysis proving that the enzyme produced was exoinulinase. The marine-derived A. terreus is suggested as a new potential candidate for industrial enzymatic production of fructose from low cost substrate containing inulin as an economic source.
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