Byproducts from cassava industry: alternative substrates for cyclodextrin glycosyltransferase production by alkalophilic Bacillus trypoxylicola SM-02

Authors

  • Carine Mascena Peixoto Center of Agricultural, Environmental, and Biological Sciences, Federal University of Recôncavo da Bahia, Rui Barbosa street, 710, Zip Code: 44380-000, Cruz das Almas, Bahia State, Brazil
  • Sheila Lorena de Araújo Coelho Center of Agricultural, Environmental, and Biological Sciences, Federal University of Recôncavo da Bahia, Rui Barbosa street, 710, Zip Code: 44380-000, Cruz das Almas, Bahia State, Brazil
  • Marcia Luciana Cazetta Center of Exact and Technological Sciences, Federal University of Recôncavo da Bahia, Rui Barbosa street, 710, Zip Code: 44380-000, Cruz das Almas, Bahia State, Brazil
DOI: https://doi.org/10.6018/analesbio.42.05
Keywords: Enzyme; Agro-industrial byproducts; Bacteria.

Abstract

In the present work was studied the use of cassava peel flour (CPF), corn steep liquor (CSL), and cassava wastewater as substrates to produce cyclodextrin glycosyltransferase (CGTase) from new alkalophilic isolate of Bacillus trypoxylicola SM-02 by submerged fermentation. The experiments were performed as a Central Composite Design 22, totalizing 11 assays. An enzymatic activity of 352.53 U/mL was obtained using 1.5 g of CPF and 0.6 g of CSL. The optimum temperature and pH of CGTase was 55 °C and 8.0, respectively. The CGTase depicted a relative activity of more than 50% for 120 min at the optimum temperature. The only salt that positively influenced the CGTase activity was CaCl2. The results are indicative of a potential role of B. trypoxylicola SM-02 in the production of CGTase using residual substrates.

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Published
31-03-2020
How to Cite
Peixoto, C. M., Coelho, . S. L. de A., & Cazetta, M. L. (2020). Byproducts from cassava industry: alternative substrates for cyclodextrin glycosyltransferase production by alkalophilic Bacillus trypoxylicola SM-02 . Anales de Biología, (42), 37–46. https://doi.org/10.6018/analesbio.42.05
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Articles