Butyrate-producing bacteria

Butyrate is mainly generated by Gram-positive bacteria, especially those belonging to the Lachnospiraceae family of Clostridia.
Reichardt et al. 2014 ISME J. 8: 1323
Oliveira & Pame 2023 Cell Host & Microbe 31: 472

Butyrate-producing bacteria (no cross-feeding effects are considered) belonging to Firmicutes are Faecalibacterium prausnitzii, Clostridium leptum, the clostridium clusters IV, XIVa, XVIII, and Roseburia hominis
Duncan et al. 2002 Int J Syst Evol Microbiol 52: 2141-2146
Chu et al. 2019a

Also, Fusobacterium spp. belonging to the phylum Fusobacteriota were defined by their shape and their fermentation of amino acids and glucose to butyrate
Brennan & Garrett 2019

Odoribacter splachnicus belonging to the phylum Bacteroidetes is involved in butyrate production, too
King et al. 2019

Eubacterium hallii can produce butyrate using both lactate and acetate as substrates
Koh et al. 2016 Cell 165: 1332

There are several substrates for the colon microbiota to increase butyrate formation (butyrogenic effect):
• Acemannan (e.g., in the gel of Aloe vera Barbadensis Miller)
• Cereal fibers
• Fructans (including inulin-type fructans)
• germinated barley foodstuff (GBF, mixture of insoluble protein and dietary fiber)
• UG1601 (inulin, lactitol, aloe vera gel)
• whole-grain rye
Mitsuyama et al. 1998
Adlercreutz 2007 Critical Reviews in Clinical Laboratory Sciences 44(5–6): 483-525
Bach Knudsen et al. 2007 Agric Food Industry High-Tech
Quezada et al. 2017
Chu et al. 2019a

Usually, bacteroides strains producing acetate and butyric acids decrease the colon pH to <6.2
Bohnhoff et al. 1964

see also:
Biological effects / Functions & Butyrate / Butyric acid
Biosynthesis & Butyrate / Butyric acid
Butyrate / Butyric acid & Firmicutes / Bacillota