Here is some information I have just found, hope it helps.
Any of the following are equivalent to 1 egg (select the proper replacement by determining the function of egg in recipe- i.e. binder, or emulsifier, etc...) Note: The replacement that works well in one application may not work well in a different application.
Also Note- Egg substitutes sold in most supermarkets do contain egg products and should not be confused with egg replacements (Ener-G Egg Replacer is egg free.)
1 tablespoon ground flaxseed meal + 3 tablespoons water + 1 tablespoon canola (or other cooking oil) oil + 1 teaspoon baking powder + 1 teaspoon tapioca or potato or corn starch- Combine using a whisk in a medium sized bowl, the ingredients will expand. Allow to stand five minutes, and whisk again before adding.
Note: If replacing egg whites, omit oil
1/ 4 teaspoon agar powder + 1 / 4 cup water + 1 teaspoon baking powder- Whisk before adding to recipe
1-1/2 teaspoons of Ener-G Egg Replacer plus 2 tablespoons of water
1 / 2 tablespoon agar flakes + 1 / 4 cup water + 1 teaspoon baking powder- In a microwave safe container, combine water and agar; cook on high for 45 seconds. Carefully remove and whisk baking powder into mixture. Use caution, the baking powder causes a rapid expansion of the liquid and has a tendency to foam over.
1 /4 cup tofu (whipped in blender or beaten prior to adding to recipe)
1 tablespoon flaxseed meat plus 3 tablespoons water replaces one egg (combine and allow to stand for 3-5 minutes, or until gelantized)
1 /4 cup banana or other fruit puree (whipped or beaten)
2 tablespoons liquid + 1 tablespoon potato or tapioca starch + 1 /2 tablespoon shortening + 3 /4 teaspoon baking powder
1 tablespoon unflavored gelatin dissolved in 1 tablespoon cold water + 2
tablespoons boiling water (beat until foamy and thickened)
1 tablespoon canola or other mild flavored oil + 1 tablespoon apple cider or wine vinegar + 1 teaspoon baking powder + 1 teaspoon starch + enough carbonated water to equal 1 /4 cup (combine in a medium size bowl- the ingredients will increase in volume as baking soda and vinegar react. Whisk, then add per instructions.