Skip to main content
Log in

High maltose-forming, Ca2+-independent and acid stable α-amylase from a novel acidophilic bacterium, Bacillus acidicola

  • Original Research Paper
  • Published:
Biotechnology Letters Aims and scope Submit manuscript

Abstract

Bacillus acidicola TSAS1 produced a novel acid-stable, thermostable, Ca2+-independent and high maltose-forming α-amylase with optimum activity at pH 4.0 and 60°C, and T1/2 of 27 min at 90°C. The enzyme saccharified raw as well as soluble starches, and ameliorated bread quality when the dough was supplemented with the enzyme.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

References

  • Antranikian G (1992) Microbial degradation of starch. In: Winkelmann G (ed) Microbial degradation of natural products. Weinheim VCH, Germany, pp 27–56

    Google Scholar 

  • Fogarty WM, Collins BS, Doyle EM, Kelly CT (1993) The high maltose-forming α-amylase of Saccharomonospora viridis: mechanisms of action. J Indust Microbiol 11:199–204

    Article  CAS  Google Scholar 

  • Gerrard JA, Every D, Sutton KH, Gilpin MJ (1997) The role of maltodextrins in the staling of bread. J Cereal Sci 26:201–209

    Article  CAS  Google Scholar 

  • Goesaert H, Leman P, Bijttebier A, Delcour JA (2009) Antifirming effects of starch degrading enzymes in bread crumb. J Agric Food Chem 57:2346–2355

    Article  CAS  PubMed  Google Scholar 

  • Kanno M (1986) A Bacillus acidocaldarius α-amylase that is highly stable to heat under acidic conditions. Agric Biol Chem 50:23–31

    CAS  Google Scholar 

  • Kumar P, Satyanarayana T (2008) Potential applications of microbial enzymes in improving quality and shelf-life of bakery products. In: Koutinas A, Pandey A, Larroche C (eds) Bioprocesses in food industry. Asiatech Publishers Inc, New Delhi, pp 132–146

    Google Scholar 

  • Liu XD, Xu Y (2008) A novel raw starch digesting α-amylase from a newly isolated Bacillus sp. YX-1: purification and characterization. Biores Technol 99:4315–4320

    Article  CAS  Google Scholar 

  • Mamo G, Gessesse A (1999) Purification and characterization of two raw starch digesting thermostable α-amylases from a thermophilic Bacillus. Enz Microb Technol 25:433–438

    Article  CAS  Google Scholar 

  • McMahon HEM, Kelly CT, Fogarty WM (1999) High maltose producing amylolytic system of a Streptomyces sp. Biotechnol Lett 21:23–26

    Article  CAS  Google Scholar 

  • Rao JLUM, Satyanarayana T (2003) Statistical optimization of the high maltose-forming hyperthermostable and Ca2+ independent α-amylase production by an extreme thermophile Geobacillus thermoleovorans using response surface methodology. J Appl Microbiol 95:712–718

    Article  CAS  Google Scholar 

  • Rao JLUM, Satyanarayana T (2007) Improving production of hyperthermostable and high maltose-forming α-amylase by an extreme thermophile Geobacillus thermoleovorans using response surface methodology and its applications. Biores Technol 98:345–352

    Article  Google Scholar 

  • Sajedi RH, Naderi-Mahesh H, Khajeh K, Ahmadvand R, Ranjbar BA, Asoodeh A, Moradian F (2005) A calcium independent α-amylase that is active and stable at low pH from the Bacillus sp. KR-8104. Enz Microb Technol 36:666–671

    Article  CAS  Google Scholar 

  • Satyanarayana T, Noorwez SM, Kumar S, Rao JLUM, Ezhilvannan M, Kaur P (2004) Development of an ideal starch saccharification process using amylolytic enzymes from thermophiles. Biochem Soc Trans 32:276–278

    Article  CAS  PubMed  Google Scholar 

  • Satyanarayana T, Rao JLUM, Ezhilvannan M (2005) α-Amylases. In: Pandey A, Webb C, Soccol CA, Larroche C (eds) Enzyme technology. Asiatech Publishers Inc, New-Delhi, pp 189–220

    Google Scholar 

  • Shivaramakrishnan S, Gangadharan D, Nampoothiri KM, Soccol CR, Pandey A (2006) α-Amylases from microbial sources–an overview on recent developments. Food Technol Biotechnol 44:173–184

    Google Scholar 

Download references

Acknowledgments

Authors gratefully acknowledge financial support from the Ministry of Environment and Forests, Government of India, New Delhi during the course of this investigation. Authors also thank Mr. Vijay Kumar Gupta (Tushar Nutritive Food Industry, New Delhi) for extending help in assessing the applicability of α-amylase in bread manufacture.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to T. Satyanarayana.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sharma, A., Satyanarayana, T. High maltose-forming, Ca2+-independent and acid stable α-amylase from a novel acidophilic bacterium, Bacillus acidicola . Biotechnol Lett 32, 1503–1507 (2010). https://doi.org/10.1007/s10529-010-0322-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10529-010-0322-9

Keywords

Navigation