How does pectinase produce apple juice?

Enzymes such as pectinase, amylase and cellulase are used in the production of fruit juice because they help to maximise the yield. This is because the enzymes break down the cell walls of the fruits and this makes it easier for the juice inside the fruit to come free. When the fruit's are being broken down a variety of polysaccharies are released which makes the juice cloudy, lowering it's market value. Pectinase and amylase can both break down these polysaccharides leaving soluble substances which leave the juice clear.

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