Description
Enzymatic breakdown of pectin to achieve crystal-clear fruit juices while preserving volatile aromatics.
Technical
Pectinase (polygalacturonase) hydrolyzes α-1,4-glycosidic bonds in pectin polymers, reducing colloidal suspension. Secondary enzymes like pectinesterase may demethylate pectin chains. This process avoids thermal degradation of flavor compounds like esters and terpenes.
Culinary Significance
Enables transparent juices with brighter flavor profiles than heat-based clarification, ideal for cocktail mixology and premium non-alcoholic beverages.
Science
Primary Reaction
Hydrolysis of pectin polysaccharides
Parameters
Temperature
10°C optimal
0°C to 20°C range
Cold temperatures help preserve volatile aromatics
Time
1 hour
30 minutes – 2 hours
Equipment
Fruit pressCheeseclothEnzyme preparation