Q107: The chemical additive, most effective in controlling yeast and molds... - Microbiological and Quality Aspects of Fish and Fishery Products - Fish Processing Technology- ICAR JRF/SRF 2024 | Agrigyan
Benzoic Acid / Sodium Benzoate (E210/E211): A chemical preservative most effective in controlling yeasts and molds in acidic foods (optimal activity at $\text{pH } 2.5 - 4.5$).
In its undissociated, lipophilic form, it traverses the microbial plasma membrane, acidifies the cytoplasm, and inhibits key metabolic enzymes (phosphofructokinase, $\alpha$-ketoglutarate dehydrogenase).
Correct Option: Option 2 (Benzoic acid).
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