Stimulation of lactobacilli by an aqueous extract of the green alga Scenedesmus acutus 276-3a

  • Helmut Zielke
  • Helmut Kneifel
  • Leslie E. Webb
  • Carl J. Soeder
Industrial Microbiology

DOI: 10.1007/BF00500858

Cite this article as:
Zielke, H., Kneifel, H., Webb, L.E. et al. European J. Appl. Microbiol. Biotechnol. (1978) 6: 79. doi:10.1007/BF00500858

Summary

The hot-water extract of Scenedesmus acutus 276-3a enhances acid formation by Lactobacillus casei var. sbirota, Streptococcus lactis and Streptococcus thermophilus appreciably. At least in S. lactis the stimulation is not caused by mineral constituents such as Mn2+. In order to facilitate screening, a quick test in tubes was used. Stimulation of lactobacilli by algal extract is also demonstrated in tests on agar plates containing TTC. Bioautography of algal extract fractions on TTC plates enabled adenine and hypoxanthine to be identified as growth factors in algal extract which contributed towards the stimulation of S. lactis.

Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • Helmut Zielke
    • 1
  • Helmut Kneifel
    • 1
  • Leslie E. Webb
    • 1
  • Carl J. Soeder
    • 1
  1. 1.Abteilung für Algenforschung und AlgentechnologieGSFDortmundGermany