To realize the industrial production of pure sour porridge. the traditional sour porridge from Hequ of Shanxi was used as the donor of lactic acid bacteria. which could be used to produce sour porridge under pure culture condition. Lactic acid bacteria were isolated from the sour porridge with CaCO3-MRS medium. https://poolsproductscanadas.shop/product-category/hayward-colorlogic-laminar-parts/