How does pectinase produce apple juice?

Answer 1

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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Answer 2

Cellulase is an enzyme/biological catalyst, which breaks down the polysaccharide cellulose: a polymer consisting of Beta glucose molecules. Cellulase is the substance found in plant cell walls. It keeps the cells sturdy and firm. In apple juice production these cell walls must be broken in order to release the juice. The use of cellulase significantly speeds this process up and increases yield, whilst also reducing viscousity of the product.

Pectinases are also essential enzymes in fruit juice production and actually more effective than cellulase.

Answer 3

Pectinase is an enzyme who breaks down a polysaccharide called pectin in the plant cell wall. It is produced by fungi to breakdown their food source. Commercially it can be used to extract juice from fruit puree.

Answer 4

it does not actually produce apple juices, rather it is used in the preparation of apple juices. They clear the juice as it contains pectinase enzyme.

Answer 5

Pectinase breaks down the cell walls in fruit and extracts juice from within the fruits cells.

Answer 6

increases extraction speed