... all kinds of soy sauce, fermented bean curd, food vinegar and family seasonings and so on.2.Meat ... product processing: Put the yeast extract into the meat food , such as the ham , the sausage , the ... the meat.3.Convenience food : such as fast-food, leisure food , frozen food , pickles , biscuits and cakes , puffed food , dairy products ... liquid. yeast extract paste as food ingredients to enhance flavour