Optimization of process variables for hyper-production of lovastatin from wild type Aspergillus terreus and its efficacy studies

  • T. Bashir
  • M. Asgher
  • F. Hussain
  • H. N. Bhatti
Keywords: Statin, Optimization, response surface methodology, Aspergillus terreus, Lignocellulosic substrate


The objective of this study was the investigation of optimum conditions for lovastatin production from Aspergillus terreusthrough response surface methodology (RSM) with central composite design (CCD). The efficacy of produced and purified statinwas thenevaluated by using induced hypercholesterolemic rats. A. terreus was used to synthesize statin by using solid state fermentation on lignocellulose substrate, w

En este trabajo se investigaron las condiciones óptimas para la producción de lovastatina a partir de Aspergillus terreus usando una metodología de superficie de respuesta (RSM) con un diseño central compuesto (CCD). La eficacia de la estatina producida y purificada se evaluó en ratas en ratas con hipercolesterolemia inducida. Se empleó A. terreus para sintetizar la estatina mediante fermentación en estado sólido usando un sustrato lignocelulósico (paja de trigo).  Se realizaron un total de 30 experimentos por triplicado para los cuatro parámetros físicos en cinco niveles y como variable de respuesta se midió la producción de estatina por A. terreus. La producción máxima de estatina (60 mg/g) se logró a una temperature de 30 °C, pH 7.37, tamaño de inóculo de 4.5 mL tiempo de fermentación de 192 h. Lla hipercolesterolemia se indujo en las ratas de los grupos I, II and III, alimentándolas con una dieta alta en colesterol durante 30 días. El grupo III (grupo de tratamiento) fue dado la estatina producida por A. terreus de los días 15-30, encontrándose que al dí 30 había ocurrido una reducción significativa en el colesterol sérico (Incrementando el significativamente el nivel del colesterol de alta densidad (HDL) y disminuyendo significativamente el colesterol de baja densidad (LDL).

heat straw. Total 30 experiments were conducted in triplicate for four physical parameters, each at five levels and response (statin production) from A. terreus was measured. Maximum statin formation (60mg/g) obtained from A. terreus at temperature 30oC, pH 7.37, Inoculum size 4.5 mL and fermentation time 192 h. Hypercholesterolemia was induced in rats by feeding a high cholesterol diet in group I,II and group III from 0 to 30 days. From days 15-30, Group III (treatment group) was given statin extracted from A. terreus. Significant reduction in serum cholesterol level in group III rats treated with purified statin were observed at 30th day with significant increase in serum HDL levels along with significant reduction of serum LDL levels.


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How to Cite
Bashir, T., Asgher, M., Hussain, F., & Bhatti, H. (2019). Optimization of process variables for hyper-production of lovastatin from wild type Aspergillus terreus and its efficacy studies. Revista Mexicana De Ingeniería Química, 19(2), 929-939. https://doi.org/10.24275/rmiq/Bio782