Show Work Wark of Bacteria Most bacteria of milk change e the milk mm sugar Into lactic acid which sours soars and curdles It Other bacteria produce an Intensely bitter substance which causes the milk to become bitter OI One type secrets a rennin enzyme which curdles the milk even though It remains sweet Another t type pe produces considerable gas Still sun another another- type causes milk lo to thicken and become ropy or stringy A long list of bacteria which affect the flavor of ot mUll milk could be prepared |