TABLE 1.

NMR data for compounds detected in “S. aciditrophicus”-M. hungatei cocultures grown on [ring-¹³C]benzoic acid

Compound	Position	δ 13C (ppm)	Jcc(Hz)
Acetic acida	Carboxyl	177.0	55.7
	Methyl	20.7	56.9
Benzoic acida	C-1	133.5	53.6, 10.5
	C-2–C-6	127.7–130.7
Cyclohexane carboxylic acidb	C-1	42.8	32.0
	C-2, C-6	28.7	31.9
	C-3, C-5	25.7
	C-4	25.4
Cyclohex-1-ene carboxylic acidc	C-1	142.6	70.3, 41.0
	C-2	147.5	69.8, 41.1
	C-3–C-6	18.0–25.0

^aChemical shifts and coupling constants were obtained from references 11 and 42. 

^bChemical shifts and coupling constants were obtained from references 11, 42, and 48. 

^cChemical shifts and coupling constants were obtained from reference 26.