HP-processed smoothies at a range between 450 and 650 MPa
showa significant reduction in aerobic mesophilic microorganisms,
yeast and moulds, and their shelf life is extended to over 45 days at
4 C. No microbial counts were observed after applying thermal or
any high-pressure processing.observed after applying thermal or
any high-pressure processing. Microbial reduction during storage
improved as pressure treatment increased (600, 650 MPa). HPP
does not modify the main physicochemical and chemical compounds,
individual sugars, organic acids and minerals analysed.
Smoothies treated with HPP may conserve their sensory attributes
better eparticularly in terms of aroma and overall acceptabilitye
than with thermal processing. HP processing may be a better choice
for the preservation of microbial and sensorial qualities. These results
prove the suitability of HPP as an alternative to traditional
thermal methods of treating smoothies.