Carbonation at 50 psi for 30 s for fermented dairy beverage
(lassi) was observed to have no adverse impact on the sensory
quality of the product. Carbonation did not significantly alter
the pH of the product while registering a marginal increase in
the titratable acidity of the product. Dissolved carbon dioxide
aided in arresting the development of lipolysis and proteolysis
and inhibiting the growth of yeasts and molds in the product
during storage. The carbonated samples were found to be
acceptable up to 12 weeks while the un-carbonated control
sample kept well up to 5 weeks under refrigerated storage.
Dissolved CO2 could be used as a simple and inexpensive
processing aid to extend shelf life of fermented dairy products.