Mathematical modeling of the whole expanded bed adsorption process to recover and purify chitosanases from the unclarified fermentation broth of Paenibacillus ehimensis

作者：de Araujo Padilha Carlos Eduardo; Fortunato Dantas Paulo Victor; de Sousa Junior Francisco Caninde; de Santana Souza Domingos Fabiano; de Oliveira Jackson Araujo; de Macedo Gorete Ribeiro; dos Santos Everaldo Silvino

来源：Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences, 2016, 1039: 44-50.

DOI：10.1016/j.jchromb.2016.10.027

• Mathematical modeling
• Expanded bed adsorption
• Chitosanases
• Fermentation broth
• Experimental design

In this study, a general rate model was applied to the entire process of expanded bed adsorption chromatography (EBAC) for the chitosanases purification protocol from unclarified fermentation broth produced by Paenibacillus ehimensis using the anionic adsorbent Streamline DEAF. For the experiments performed using the expanded bed, a homemade column (2.6 cm x 30.0 cm) was specially designed. The proposed model predicted the entire EBA process adequately, giving R-2 values higher than 0.85 and chi(2) as low as 0.351 for the elution step. Using the validated model, a 33 factorial design was used to investigate other non-tested conditions as input. It was observed that the superficial velocity during loading and washing steps, as well as the settled bed height, has a strong positive effect on the F objective function used to evaluate the production of the purified chitosanases.

• 出版日期2016-12-15