- Benzoic acid and hippuric
acid, as well as other compounds of higher molecular mass ((Leg) hemoglobins, pe).
acid generated by the action of the angiotensin-converting enzyme on HHL was extracted from the acidified solution into 1 mL ethyl acetate by vortex mixing for 15 s.
Then 1000 ul of ethyl acetate was used to extract the hippuric
acid formed from the reaction mixture.
It is well known that hippuric
acid in urine is derived from bacterial breakdown of chlorogenic acid and high levels indicate GI microbial overgrowth rather than inherited organic acidemia15, and may be seen by bacterial contamination of urine samples16.
PAL is an enzyme that breaks down Phe to generate trans-cinnamic acid, which is converted to hippuric
acid in the liver and excreted in urine.
We suggest, for instance, measurement of urinary metabolites--such as hippuric
acid (metabolite of toluene), methyl hippuric
acid (metabolite of xylene) and [delta]-aminolevulinic acid (metabolite of lead)--in relationship with the previously described blood tests and the environmental concentration of toxicants found in the work environment for biological monitoring of exposed individuals (9,11,39).
acid produced by ACE was extracted by adding of 750 uL ethyl acetate to the mixture with vigorous shaking.
Subsequently, the same group of patients was tested, and 6 metabolites were identified in their urine: sorbitol, uric acid, azelaic acid, hippuric
acid, quinolinic acid and tyrosine, which may be biomarkers of reference for MDD (36).
Already by Stage 3, elevated solutes (hippuric
acid, indole-3-acetic acid, kynurenic acid) may inhibit tubular excretion.
Moghimbeigi, "Hollow fiber supported liquid membrane extraction combined with HPLC-UV for simultaneous preconcentration and determination of urinary hippuric
acid and mandelic acid," Membranes, vol.
Hippuryl-L-histidyl-L-leucine (HHL) is hydrolyzed by ACE to yield hippuric
acid and histidylleucine.
The acidic compound hippuric
acid, produced by the body when you drink cranberry juice, works as an antibacterial.