title: A refreshing beverage from mature coconut water blended with lemon juice.
abstract: Coconut water obtained from the mature coconuts was blended with lemon juice to develop a refreshing beverage. The levels of total soluble solids (°Brix) in the coconut beverage and lemon juice (%), were optimized using response surface methodology and considering pH, CIE L* value and sensory attributes (colour, aroma, taste, consistency and overall acceptability) as responses. A number total of 14 experiments were carried out following Central Composite Rotatable Design (CCRD) keeping 6 experiments at centre point. The data obtained were analyzed using multiple regression technique and the quadratic equations (R(2), 98.14-99.89 %) were found to fit well in describing the effect of variables on responses studied. An optimum condition for the coconut water beverage was obtained at 13.5°Brix blended with 2 % lemon juice. The mature coconut water beverage blended with lemon juice showed a shelf-life of 6 months in packed conditions at low (5 °C), ambient (25 ± 2 °C) and high (37 °C) temperatures on the basis of physicochemical, microbiological and sensory attributes.
authors.affiliation: Defence Food Research Laboratory, Siddarthanagar Mysore, 570011 India.
authors.forename: O P
authors.initials: OP
authors.lastname: Chauhan
authors.affiliation: Defence Food Research Laboratory, Siddarthanagar Mysore, 570011 India.
authors.forename: B S
authors.initials: BS
authors.lastname: Archana
authors.affiliation: Defence Food Research Laboratory, Siddarthanagar Mysore, 570011 India.
authors.forename: Asha
authors.initials: A
authors.lastname: Singh
authors.affiliation: Defence Food Research Laboratory, Siddarthanagar Mysore, 570011 India.
authors.forename: P S
authors.initials: PS
authors.lastname: Raju
authors.affiliation: Defence Food Research Laboratory, Siddarthanagar Mysore, 570011 India.
authors.forename: A S
authors.initials: AS
authors.lastname: Bawa
keywords: Beverage; Coconut water; Optimization; Response surface methodology; Storage