Premium
Coupling osmotic dehydration with heat treatment for green papaya impregnated with blackberry juice solution
Author(s) -
Jiménez Nadiarid,
Bassama Joseph,
Soto Marvin,
Dornier Manuel,
Pérez Ana Mercedes,
Vaillant Fabrice,
Bohuon Philippe
Publication year - 2020
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.14507
Subject(s) - osmotic dehydration , sucrose , anthocyanin , chemistry , molality , response surface methodology , dehydration , mass transfer , food science , sugar , supercooling , water activity , water content , chromatography , biochemistry , thermodynamics , aqueous solution , organic chemistry , physics , geotechnical engineering , engineering
Summary Slices (1.5 mm thick) of green papaya were impregnated through osmotic dehydration with a blackberry juice–sucrose solution to produce an intermediate moisture product. The effect of processing temperature ( T ) and sucrose‐added molality ( m sucrose ) on mass transfer during the operation was assessed, using a response surface methodology (RSM). The RSM was used to model water loss, sugar and anthocyanin gain during the process. Increasing sucrose molality resulted in increasing water loss and sugar gain, but decreasing anthocyanin gain. Water transfer therefore limits anthocyanin impregnation, but not sucrose incorporation. Afterwards, the impact of heat treatment at high temperatures was analysed, using numerical simulation. The conditions of the combined process, designed to achieve an anthocyanin‐rich final product, are low sucrose‐added molalities (sucrose molality < 1 mol kg –1 ) and high processing temperatures ( T > 50 ºC) for osmotic dehydration, coupled with high‐temperature, short‐time (HTST) heat treatments for product stabilisation.