Marinades are not only helpful in tenderizing meat but also enhance the flavor. And they are particularly useful for barbecuing, where the intense heat can result in dry food. Barbecue marinades are usually based on tomato, onion and garlic, which suit the smoky flavors very well. Tomato is often included for its tenderizing effect, but any other acid ingredients, such as vinegar or lemon juice, can also be used.
A marinade may include garlic, fresh ginger, lemon juice, olive oil, sherry and brown sugar, as well as soy sauce to provide a tangy falvor.
** Asian Online Recipes