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Questions and Answers
How do short chain organic acids inhibit microorganism growth?
How do short chain organic acids inhibit microorganism growth?
- By facilitating the transport of metabolites into the cell
- By promoting the regeneration of ATP by uncoupling the electron transport system
- By increasing the production of ATP
- By altering the structure of the cell membrane (correct)
At what pH is acetic acid effective against various bread molds?
At what pH is acetic acid effective against various bread molds?
- pH 9.0
- pH 5.0
- pH 7.0
- pH 3.5 (correct)
Which of the following microorganisms is acetic acid an effective inhibitor of in baked goods?
Which of the following microorganisms is acetic acid an effective inhibitor of in baked goods?
- Streptococcus pyogenes
- Bacillus subtilis (correct)
- Escherichia coli
- Aspergillus niger
What is the primary reason for acetic acid's antimicrobial activity variation?
What is the primary reason for acetic acid's antimicrobial activity variation?
What is the main use of lactic acid as a food additive?
What is the main use of lactic acid as a food additive?
What is the main function of fumaric acid esters in tomato juice?
What is the main function of fumaric acid esters in tomato juice?
Why are propionates used as an antimicrobial agent?
Why are propionates used as an antimicrobial agent?
What is the primary antimicrobial activity of citric acid?
What is the primary antimicrobial activity of citric acid?
Which acid is most effective in inhibiting the growth of Bacillus coagulans in tomato juice?
Which acid is most effective in inhibiting the growth of Bacillus coagulans in tomato juice?
What is the primary use of fumaric acid in fermented products?
What is the primary use of fumaric acid in fermented products?
Why are propionic acid and its salts used as antimicrobial agents?
Why are propionic acid and its salts used as antimicrobial agents?
What is the effect of citric acid on Salmonella?
What is the effect of citric acid on Salmonella?
What makes propionates more active against molds than sodium benzoate?
What makes propionates more active against molds than sodium benzoate?
What makes lactic acid four times as effective as other acids in inhibiting the growth of Bacillus coagulans in tomato juice?
What makes lactic acid four times as effective as other acids in inhibiting the growth of Bacillus coagulans in tomato juice?
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