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Title

MIXTURE OF XYLOSE AND GLUCOSE AFFECTS XYLITOL PRODUCTION BY PICHIA GUILLIERMONDII: MODEL PREDICTION USING ARTIFICIAL NEURAL NETWORK

Pages

  119-131

Abstract

 Production of several yeast products occur in presence of mixtures of monosaccharides. To study effect of xylose and glucose mixtures with system aeration and nitrogen source as the other two operative variables on XYLITOL PRODUCTION by PICHIA GUILLIERMONDII, the present work was defined. ARTIFICIAL NEURAL NETWORK (ANN) strategy was used to mathematically show interplay between these three controllable factors and the xylitol productivity response.In the first stage, model fitting was performed using RESPONSE SURFACE METHODOLOGY (RSM) and the appropriate fraction of this design then was applied for the ANN training step (Levenberg Marquardt ‘LM’ algorithm). The best ANN model configuration with the three test input variables composed of six neurons in the hidden layer and tangent sigmoid (TANSIG) and linear transfer function (PURELIN) were used as the activation functions for the data processing from inputs to the hidden layer and from the constructed neurons to the output nodes. The network performance was evaluated by Mean Squared Error (MSE) and the regression coefficient of determination (R2).These values respectively, for the RSM model fitting were 2.327× 10-4 and 0.9817, and for the ANN training data were 2.29 × 10-8 and 0.9999. While MSE and R2 values for the other two steps of ANN were 4.56 × 10-3 and 0.9741 (validating step) and1.52× 10-3 and 0.9325 (testing step), respectively. Positive synergism of ANN with RSM was confirmed.

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    APA: Copy

    MAGHAREI, AZADEH, VAHABZADEH, FARZANEH, SOHRABI, MORTEZA, RAHIMI KASHKOULI, YOUSEF, & MALEKI, MOHAMMAD. (2012). MIXTURE OF XYLOSE AND GLUCOSE AFFECTS XYLITOL PRODUCTION BY PICHIA GUILLIERMONDII: MODEL PREDICTION USING ARTIFICIAL NEURAL NETWORK. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 31(1 (61)), 119-131. SID. https://sid.ir/paper/571280/en

    Vancouver: Copy

    MAGHAREI AZADEH, VAHABZADEH FARZANEH, SOHRABI MORTEZA, RAHIMI KASHKOULI YOUSEF, MALEKI MOHAMMAD. MIXTURE OF XYLOSE AND GLUCOSE AFFECTS XYLITOL PRODUCTION BY PICHIA GUILLIERMONDII: MODEL PREDICTION USING ARTIFICIAL NEURAL NETWORK. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2012;31(1 (61)):119-131. Available from: https://sid.ir/paper/571280/en

    IEEE: Copy

    AZADEH MAGHAREI, FARZANEH VAHABZADEH, MORTEZA SOHRABI, YOUSEF RAHIMI KASHKOULI, and MOHAMMAD MALEKI, “MIXTURE OF XYLOSE AND GLUCOSE AFFECTS XYLITOL PRODUCTION BY PICHIA GUILLIERMONDII: MODEL PREDICTION USING ARTIFICIAL NEURAL NETWORK,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 31, no. 1 (61), pp. 119–131, 2012, [Online]. Available: https://sid.ir/paper/571280/en

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