I use 0.1 N of KOH in buret and 10 ml of 2-propanol with 1g of crude rice bran oil by adding phenolphthalein indicater. I neutralized 2-propanol alcohol to avoid acidity before adding to crude oil.

Yellowish pink color start to change at around 5ml of 0.1 N KOH

I use the formula of ( ml of consume KOH* 0.1 N * 56.1)/ 1g of sample oil for AV and %FFA for AV*0.503 . Final calculated AV and % FFA is so low.

Did i do something wrong ? Please ...