14 Questions
How do short chain organic acids inhibit microorganism growth?
By altering the structure of the cell membrane
At what pH is acetic acid effective against various bread molds?
pH 3.5
Which of the following microorganisms is acetic acid an effective inhibitor of in baked goods?
Bacillus subtilis
What is the primary reason for acetic acid's antimicrobial activity variation?
Food product
What is the main use of lactic acid as a food additive?
To inhibit the growth of Bacillus coagulans in tomato juice
What is the main function of fumaric acid esters in tomato juice?
Inhibiting mold growth
Why are propionates used as an antimicrobial agent?
To inhibit mold growth on bread
What is the primary antimicrobial activity of citric acid?
Chelating metal to inhibit microbial growth
Which acid is most effective in inhibiting the growth of Bacillus coagulans in tomato juice?
Lactic Acid
What is the primary use of fumaric acid in fermented products?
Preventing malolactic fermentation in wine
Why are propionic acid and its salts used as antimicrobial agents?
To inhibit spore forming organism Bacillus subtilis
What is the effect of citric acid on Salmonella?
It inhibits Salmonella growth more effectively than lactic and hydrochloric acids
What makes propionates more active against molds than sodium benzoate?
Accumulates in the cell and inhibits the enzymes involved in metabolism
What makes lactic acid four times as effective as other acids in inhibiting the growth of Bacillus coagulans in tomato juice?
Competes with alanine and other amino acids necessary for the multiplication of microorganisms
Explore the role of short chain organic acids as antimicrobial agents and acidulants in food products. Learn about their mechanism of inhibiting microorganism growth by altering cell membrane structure and interfering with ATP regeneration and metabolite transport.
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