Display options
Share it on

J Food Sci Technol. 2014 Nov;51(11):3325-32. doi: 10.1007/s13197-012-0870-1. Epub 2012 Oct 17.

In situ production of pediocin PA-1 like bacteriocin by different genera of lactic acid bacteria in soymilk fermentation and evaluation of sensory properties of the fermented soy curd.

Journal of food science and technology

Sundru Manjulata Devi, Asha Mysore Ramaswamy, Prakash M Halami

Affiliations

  1. Food Microbiology Department, CSIR- Central Food Technological Research Institute, Mysore, 570020 India.
  2. Sensory Science Department, CSIR- Central Food Technological Research Institute, Mysore, 570020 India.

PMID: 26396327 PMCID: PMC4571263 DOI: 10.1007/s13197-012-0870-1

Abstract

The lactic acid bacteria (LAB) are found to produce bacteriocins with enhanced nutritive properties in the fermented foods. In the present study, the ability of LAB cultures (Pediococcus acidilactici NCIM 5424, Enterococcus faecium NCIM 5423 and Lactobacillus plantarum Acr2) to produce pediocin PA-1 like bacteriocin was evaluated during soymilk fermentation. The isolates E. faecium NCIM 5423 and Lb. plantarum Acr2 were able to produce bacteriocin as well as ferment soymilk within 6 h of incubation. Upon plating the cultures E. faecium NCIM 5423 and Lb. plantarum Acr2 in soymilk were found to be viable even after 15 days of storage at 4 °C. No significant variation was observed in the viable counts of E. faecium NCIM 5423 and Lb. plantarum Acr2 (P>0.05). The effect of crude bacteriocin on Listeria cells was evidenced through scanning electron microscope (SEM) photographs wherein cell membrane damage was observed. On co-cultivation of E. faecium NCIM 5423 and Lb. plantarum Acr2 individually with Listeria monocytogenes ScottA a decrease in the Listeria count was observed within 24 h of incubation. However, during co-cultivation of ScottA with P. acidilactici NCIM 5424, no significant difference was observed in the viable counts (P>0.05). The pH, titratable acidity, pediocin activity, anti-oxidant property and sensory attributes for E. faecium NCIM 5423 were studied. It was observed that E. faecium NCIM 5423 fermented soymilk had an acceptable sensory score during storage period. Hence, such culture can be an ideal starter for development of functional foods with longer shelf life.

Keywords: Anti-listerial activity; Co-cultivation; Lactic acid bacteria; Pediocin PA-1 like bacteriocin; Sensory analysis; Soymilk fermentation

References

  1. Curr Microbiol. 2011 Aug;63(2):181-5 - PubMed
  2. J Appl Microbiol. 1999 Jul;87(1):182-6 - PubMed
  3. Braz J Microbiol. 2009 Oct;40(4):757-66 - PubMed
  4. Microb Cell Fact. 2009 Jan 08;8:3 - PubMed
  5. Int J Food Microbiol. 2003 Dec 1;88(2-3):215-22 - PubMed
  6. Benef Microbes. 2011 Mar;2(1):57-61 - PubMed
  7. Lett Appl Microbiol. 2000 Sep;31(3):193-7 - PubMed
  8. Biotechnol Lett. 2003 Mar;25(6):473-7 - PubMed
  9. Food Microbiol. 2006 Apr;23(2):128-35 - PubMed
  10. Int J Food Microbiol. 1999 Mar 1;47(1-2):1-24 - PubMed
  11. Appl Biochem Biotechnol. 2008 Dec;151(2-3):452-63 - PubMed
  12. J Basic Microbiol. 2013 Jul;53(7):555-61 - PubMed
  13. Int J Food Sci Nutr. 2010 Feb;61(1):87-107 - PubMed
  14. Curr Med Chem Anticancer Agents. 2002 Nov;2(6):691-714 - PubMed
  15. J Appl Microbiol. 2010 Jul;109 (1):54-64 - PubMed
  16. Int J Food Microbiol. 1994 Dec;24(1-2):295-308 - PubMed
  17. Arch Latinoam Nutr. 2001 Mar;51(1):100-4 - PubMed
  18. J Ind Microbiol Biotechnol. 2010 Jan;37(1):65-9 - PubMed

Publication Types