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Int. J. Mol. Sci. 2010, 11(11), 4726-4740; doi:10.3390/ijms11114726
Article

Optimization of the Culture Medium Composition to Improve the Production of Hyoscyamine in Elicited Datura stramonium L. Hairy Roots Using the Response Surface Methodology (RSM)

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Received: 14 October 2010; in revised form: 3 November 2010 / Accepted: 17 November 2010 / Published: 18 November 2010
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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Abstract: Traditionally, optimization in biological analyses has been carried out by monitoring the influence of one factor at a time; this technique is called one‑variable‑at‑a‑time. The disadvantage of this technique is that it does not include any interactive effects among the variables studied and requires a large number of experiments. Therefore, in recent years, the Response Surface Methodology (RSM) has become the most popular optimization method. It is an effective mathematical and statistical technique which has been widely used in optimization studies with minimal experimental trials where interactive factors may be involved. This present study follows on from our previous work, where RSM was used to optimize the B5 medium composition in [NO3−], [Ca2+] and sucrose to attain the best production of hyoscyamine (HS) from the hairy roots (HRs) of Datura stramonium elicited by Jasmonic Acid (JA). The present paper focuses on the use of the RSM in biological studies, such as plant material, to establish a predictive model with the planning of experiments, analysis of the model, diagnostics and adjustment for the accuracy of the model. With the RSM, only 20 experiments were necessary to determine optimal concentrations. The model could be employed to carry out interpolations and predict the response to elicitation. Applying this model, the optimization of the HS level was 212.7% for the elicited HRs of Datura stramonium, cultured in B5-OP medium (optimized), in comparison with elicited HRs cultured in B5 medium (control). The optimal concentrations, under experimental conditions, were determined to be: 79.1 mM [NO3−], 11.4 mM [Ca2+] and 42.9 mg/L of sucrose.
Keywords: Datura stramonium; hyoscyamine; hairy root; medium components; optimization; Response Surface Methodology Datura stramonium; hyoscyamine; hairy root; medium components; optimization; Response Surface Methodology
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Amdoun, R.; Khelifi, L.; Khelifi-Slaoui, M.; Amroune, S.; Asch, M.; Assaf-Ducrocq, C.; Gontier, E. Optimization of the Culture Medium Composition to Improve the Production of Hyoscyamine in Elicited Datura stramonium L. Hairy Roots Using the Response Surface Methodology (RSM). Int. J. Mol. Sci. 2010, 11, 4726-4740.

AMA Style

Amdoun R, Khelifi L, Khelifi-Slaoui M, Amroune S, Asch M, Assaf-Ducrocq C, Gontier E. Optimization of the Culture Medium Composition to Improve the Production of Hyoscyamine in Elicited Datura stramonium L. Hairy Roots Using the Response Surface Methodology (RSM). International Journal of Molecular Sciences. 2010; 11(11):4726-4740.

Chicago/Turabian Style

Amdoun, Ryad; Khelifi, Lakhdar; Khelifi-Slaoui, Majda; Amroune, Samia; Asch, Mark; Assaf-Ducrocq, Corinne; Gontier, Eric. 2010. "Optimization of the Culture Medium Composition to Improve the Production of Hyoscyamine in Elicited Datura stramonium L. Hairy Roots Using the Response Surface Methodology (RSM)." Int. J. Mol. Sci. 11, no. 11: 4726-4740.


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