Remove the peel and weight 300 g of papaya
and grind it then transfer into in a clean glass
250 ml beaker and add 120 ml of distilled
water. Mix well on a stirring hot plate, raise the
temperature to 75oC, and then cool liquid to 30
o C. Add in 1.2 grams of sodium bis (2-
ethylhexyl) sulfosuccinate (AOT). Stir well again
for 15 minutes. Check pH and adjust with if
acidic with dilute ammonia and if basic with
10% acetic acid and maintain to 6.3 pH. Now,
for back extraction. Add 1.09 grams of counterionic
surfactant tri-n-octylmethyl-ammonium