The ester value (EV) is an analytical parameter used in chemistry to determine the amount of ester present in fats and oils.[1] It represents the number of milligrams of potassium hydroxide (KOH) required to saponify the ester content in 1 gram of a substance, and is equivalent to the difference of the saponification value and the acid value.[2][3]

See also

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References

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  1. ^ "Ester value: Significance and symbolism". Wisdomlib. Retrieved 18 November 2025.
  2. ^ "BP301T POC Unit III - Fats and Oils" (PDF). IPT Salipur. Institute of Pharmacy and Technology Salipur. Retrieved 18 November 2025.
  3. ^ Warth, A. H. (1956). The Chemistry and Technology of Waxes (2nd ed.). Reinhold Publishing Corporation. pp. 582–586.