... elements. Which enhancing the delicacy, fragrance of the food, making the food tasty, full-bodied, is an ideal natural condiment. ... Put the yeast extract into the meat food , such as the ham , the sausage , the meat stuffing and so on, and the ... the savory of the meat.3.Convenience food : such as fast-food, leisure food , frozen food , pickles , biscuits and cakes , puffed food , dairy products , all ...