Decant or strain the liquid, very carefully, from the mixture into a clean test tube. Add 3 to 4 drops of tenderizer solution and swirl the test tube to mix. Carefully pour 10 ml of ice cold ethanol down the side of the test tube to form a layer on the top of the onion mixture. Let stand for 3 minutes . Add 5 drops of phenol red indicator to the DNA solution.
Phenol red turns an organic acid pink upon contact.
It should be a light amber color. Add 5 ml of detergent 4. Add 3 grams Adolph's Meat Tenderizer 5. Adjust pH to 8 using baking soda 6. Remove from heat, pour 6 ml into test tube 8.