Possible Interaction: Acetic Acid and Citric Acid

“Conclusions Our results show a disinfecting effect of acetic acid in a concentration of 10% and in presence of 1.5% citric acid against a variety of microorganisms.”

“However, this can be achieved by increasing the concentration of acetic acid used, especially when combined with citric acid.”

“Results At a concentration of … presence of 1.5% citric acid, acetic acid showed a reduction of > 5-log steps according to the specifications of DIN EN 1040 and DIN EN … the following microorganisms: P. aeruginosa , E. coli , S. aureus , L. monocytogenes , K. pneumoniae , E. hirae and A. brasiliensis .”

“Replacement of acetic acid by citric acid gave 88% deproteination and 90% demineralization.”

“While the low-level release of QD-associated … the food simulants was observed, exposure to dilute acetic acid resulted in more than double the mass transfer compared to that which … exposure to dilute hydrochloric acid at the same pH. Conversely, exposure to citric acid resulted in a … QD release.”

“In this study, the effect of acetic acid on citric acid fermentation was investigated and results showed that lower concentration of acetic acid could promote Aspergillus niger growth and citric acid production.”

“From the point of view of food safety, considering the amount of ochratoxin A produced, fermentation practices should be conducted towards the enhancement of acetic acid, although lactic and citric acids also have an important role in lowering the pH to improve the toxicity of acetic acid.”

“Results showed that HCB was reduced by 20%-44% in Hydragric Acrisol during 8 weeks, and addition of acetic acid inhibited the dechlorination, indicating that dechlorination was impeded at low pH. Addition of glucose or citric acid decreased the dechlorination rate initially and then increased it.”

“The MPG for lactic, citric , hydrochloric, aspartic, malic, succinic, pyruvic, and tartaric acids was 5.80; acetic acid was considerably more inhibitory, giving a MPG of 6.30-6.40; the MPG's for fumaric and pyruvic acids were 6.00 and 5.70, respectively.”