2015 December 3, “Levan Enhances Associated Growth of Bacteroides, Escherichia, Streptococcus and Faecalibacterium in Fecal Microbiota”, in PLOS ONE, →DOI:
The multiauxic growth on levan started with a small power peak (less than 100 μW) followed by prolonged major growth phase (samples FS1 and FS3-5).