... essence spice, all kinds of soy sauce, fermented bean curd, food vinegar and family seasoning and so on2.Meats, aquatic product ... : 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 ...