Digestion and Absorption of Protein (continued) Free amino acids absorbed by cotransport with Na + . Dipeptides and tripeptides transported by secondary active transport using a H + gradient to transport them into the cytoplasm. Hydrolyzed into free amino acids and then secreted into the blood. Insert fig.
Substitute an equal amount of sour cream for milk in a recipe. Examine the texture of the sour cream. Adjust the level of shortening or butter in the recipe. Reduce the shortening by 1/2 cup for thick or heavy sour cream or 1/3 cup for thin or light sour cream.
1 If you need your recipe to be looser, you can use 1/4 cup milk plus 3/4 cup yogurt or sour cream in place of buttermilk. 2  Let 2-3 tsp. of lemon juice or vinegar set in a cup of milk for 10 minutes to make sour milk. 3  Be sure to put the vinegar or juice in the cup first and then add enough milk to make a cup.