Biowaste: A Lactobacillus habitat and lactic acid fermentation substrate

Maraike Probst, Annika Fritschi, Andreas Wagner, Heribert Insam

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Composite organic waste was assessed for its physical, chemical and microbial suitability to serve as a substrate for the fermentative production of lactic acid. The biowaste studied was highly acidic (pH 4.3) and had high organic carbon content (45%). A clone library identified 90% of the bacterial community were lactic acid bacteria, mainly represented by Lactobacilli (70%). Cultivation using semiselective media identified Lactobacillus plantarum, Lactobacillus brevis and their closest relatives as the dominating taxa. PCR-DGGE using general bacterial and lactic acid bacterial specific primers resulted in little heterogeneity of microbial community. These data indicate that biowaste is a preferred habitat of lactic acid bacteria, suggesting that the unsterilized biowaste and its natural flora could be used in a fermentation process for lactic acid production. Such kind of biowaste application could be an alternative for current substrates and provide a modern, efficient and environmental friendly waste treatment technology.

Original languageEnglish
Pages (from-to)647-652
Number of pages6
JournalBioresource Technology
StatePublished - 1 Jan 2013
Externally publishedYes


  • Lactic acid bacteria
  • Municipal organic waste
  • Organic residue
  • Unsterilized biowaste

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal


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