Development of a bioreactor based on lipase entrapped in a monolithic cryogel for esterification and interesterification reactions

  • Lizzy Ayra Alcântara Veríssimo
  • Paula Chequer Gouveia Mól UNESP
  • Wanescy Caroliny Leite Soares
  • Valéria Paula Rodrigues Minim
  • Maria do Carmo Hespanhol
  • Luis Antonio Minim

Abstract

In this work, it was developed novel bioreactor consisting of Aspergillus niger lipase (ANL) entrapped in a polyacrylamide-based supermacroporous monolithic cryogel. Bioreactor performance in catalyzing the flavor ester butyl butyrate was optimized as a function of temperature (°C), substrate molar ratio (butyric acid: n-butanol) and added water (% (v/v)). The bioreactor was also applied to interesterification reactions. The maximum esterification yield (46%) for butyl butyrate synthesis was found at 40 °C, with a butyric acid:n-butanol molar ratio of 1:1.43 and added water of 65% (v/v). The bioreactor proved to be reusable with four consecutive reuses in the esterification reaction, with a residual esterification yield of 64.6% and volumetric activity of 31.6 mmol/mL·h. A high interesterification yield (17.35% in 24 h) was achieved when the substrate concentrations of tripalmitin and triolein were both 15 mmol/L, 35% added water (v/v) and temperature of 40 °C. These results showed that the bioreactor is a promising biocatalyst for biotechnological applications.

Published
Oct 6, 2017
How to Cite
VERÍSSIMO, Lizzy Ayra Alcântara et al. Development of a bioreactor based on lipase entrapped in a monolithic cryogel for esterification and interesterification reactions. Revista Mexicana de Ingeniería Química, [S.l.], v. 17, n. 1, p. 177-187, oct. 2017. ISSN 2395-8472. Available at: <http://rmiq.org/ojs/index.php/rmiq/article/view/191>. Date accessed: 18 dec. 2017.
Section
Biotechnology

Received 22 July 2017, published online 6 October 2017